mirror of https://github.com/hashcat/hashcat.git
Gabriele Gristina
3 years ago
parent
640d95a00f
commit
58bb2b69b4
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/**
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* Author......: See docs/credits.txt
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* License.....: MIT
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*/
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//#define NEW_SIMD_CODE
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#ifdef KERNEL_STATIC
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#include "inc_vendor.h"
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#include "inc_types.h"
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#include "inc_platform.cl"
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#include "inc_common.cl"
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#include "inc_simd.cl"
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#include "inc_hash_sha256.cl"
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#endif
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#define COMPARE_S "inc_comp_single.cl"
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#define COMPARE_M "inc_comp_multi.cl"
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#define SNMPV3_SALT_MAX 1500
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#define SNMPV3_ENGINEID_MAX 32
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#define SNMPV3_MSG_AUTH_PARAMS_MAX 24
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#define SNMPV3_ROUNDS 1048576
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#define SNMPV3_MAX_PW_LENGTH 64
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#define SNMPV3_TMP_ELEMS 4096 // 4096 = (256 (max pw length) * 64) / sizeof (u32)
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#define SNMPV3_HASH_ELEMS 8
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#define SNMPV3_MAX_SALT_ELEMS 512 // 512 * 4 = 2048 > 1500, also has to be multiple of 64
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#define SNMPV3_MAX_ENGINE_ELEMS 16 // 16 * 4 = 64 > 32, also has to be multiple of 64
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#define SNMPV3_MAX_PNUM_ELEMS 4 // 4 * 4 = 16 > 9
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typedef struct hmac_sha256_tmp
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{
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u32 tmp[SNMPV3_TMP_ELEMS];
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u32 h[SNMPV3_HASH_ELEMS];
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} hmac_sha256_tmp_t;
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typedef struct snmpv3
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{
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u32 salt_buf[SNMPV3_MAX_SALT_ELEMS];
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u32 salt_len;
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u32 engineID_buf[SNMPV3_MAX_ENGINE_ELEMS];
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u32 engineID_len;
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u32 packet_number[SNMPV3_MAX_PNUM_ELEMS];
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} snmpv3_t;
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KERNEL_FQ void m26800_init (KERN_ATTR_TMPS_ESALT (hmac_sha256_tmp_t, snmpv3_t))
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{
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/**
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* modifier
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*/
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const u64 gid = get_global_id (0);
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if (gid >= gid_max) return;
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/**
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* base
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*/
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const u32 pw_len = pws[gid].pw_len;
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u32 w[64] = { 0 };
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for (u32 i = 0, idx = 0; i < pw_len; i += 4, idx += 1)
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{
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w[idx] = pws[gid].i[idx];
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}
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u8 *src_ptr = (u8 *) w;
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// password 64 times, also swapped
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u32 dst_buf[16];
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u8 *dst_ptr = (u8 *) dst_buf;
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int tmp_idx = 0;
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for (int i = 0; i < 64; i++)
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{
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for (int j = 0; j < pw_len; j++)
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{
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const int dst_idx = tmp_idx & 63;
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dst_ptr[dst_idx] = src_ptr[j];
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// write to global memory every time 64 byte are written into cache
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if (dst_idx == 63)
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{
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const int tmp_idx4 = (tmp_idx - 63) / 4;
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tmps[gid].tmp[tmp_idx4 + 0] = hc_swap32_S (dst_buf[ 0]);
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tmps[gid].tmp[tmp_idx4 + 1] = hc_swap32_S (dst_buf[ 1]);
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tmps[gid].tmp[tmp_idx4 + 2] = hc_swap32_S (dst_buf[ 2]);
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tmps[gid].tmp[tmp_idx4 + 3] = hc_swap32_S (dst_buf[ 3]);
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tmps[gid].tmp[tmp_idx4 + 4] = hc_swap32_S (dst_buf[ 4]);
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tmps[gid].tmp[tmp_idx4 + 5] = hc_swap32_S (dst_buf[ 5]);
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tmps[gid].tmp[tmp_idx4 + 6] = hc_swap32_S (dst_buf[ 6]);
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tmps[gid].tmp[tmp_idx4 + 7] = hc_swap32_S (dst_buf[ 7]);
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tmps[gid].tmp[tmp_idx4 + 8] = hc_swap32_S (dst_buf[ 8]);
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tmps[gid].tmp[tmp_idx4 + 9] = hc_swap32_S (dst_buf[ 9]);
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tmps[gid].tmp[tmp_idx4 + 10] = hc_swap32_S (dst_buf[10]);
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tmps[gid].tmp[tmp_idx4 + 11] = hc_swap32_S (dst_buf[11]);
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tmps[gid].tmp[tmp_idx4 + 12] = hc_swap32_S (dst_buf[12]);
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tmps[gid].tmp[tmp_idx4 + 13] = hc_swap32_S (dst_buf[13]);
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tmps[gid].tmp[tmp_idx4 + 14] = hc_swap32_S (dst_buf[14]);
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tmps[gid].tmp[tmp_idx4 + 15] = hc_swap32_S (dst_buf[15]);
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}
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tmp_idx++;
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}
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}
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// hash
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tmps[gid].h[0] = SHA256M_A;
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tmps[gid].h[1] = SHA256M_B;
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tmps[gid].h[2] = SHA256M_C;
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tmps[gid].h[3] = SHA256M_D;
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tmps[gid].h[4] = SHA256M_E;
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tmps[gid].h[5] = SHA256M_F;
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tmps[gid].h[6] = SHA256M_G;
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tmps[gid].h[7] = SHA256M_H;
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}
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KERNEL_FQ void m26800_loop (KERN_ATTR_TMPS_ESALT (hmac_sha256_tmp_t, snmpv3_t))
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{
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/**
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* base
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*/
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const u64 gid = get_global_id (0);
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if (gid >= gid_max) return;
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u32 h[8];
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h[0] = tmps[gid].h[0];
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h[1] = tmps[gid].h[1];
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h[2] = tmps[gid].h[2];
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h[3] = tmps[gid].h[3];
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h[4] = tmps[gid].h[4];
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h[5] = tmps[gid].h[5];
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h[6] = tmps[gid].h[6];
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h[7] = tmps[gid].h[7];
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const u32 pw_len = pws[gid].pw_len;
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const int pw_len64 = pw_len * 64;
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#define SNMPV3_TMP_ELEMS_OPT 1024 // 1024 = (64 max pw length * 64) / sizeof (u32)
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// for pw length > 64 we use global memory reads
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u32 tmp[SNMPV3_TMP_ELEMS_OPT];
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if (pw_len < 64)
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{
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for (int i = 0; i < pw_len64 / 4; i++)
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{
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tmp[i] = tmps[gid].tmp[i];
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}
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for (int i = 0, j = loop_pos; i < loop_cnt; i += 64, j += 64)
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{
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const int idx = (j % pw_len64) / 4; // the optimization trick is to be able to do this
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u32 w0[4];
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u32 w1[4];
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u32 w2[4];
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u32 w3[4];
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w0[0] = tmp[idx + 0];
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w0[1] = tmp[idx + 1];
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w0[2] = tmp[idx + 2];
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w0[3] = tmp[idx + 3];
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w1[0] = tmp[idx + 4];
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w1[1] = tmp[idx + 5];
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w1[2] = tmp[idx + 6];
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w1[3] = tmp[idx + 7];
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w2[0] = tmp[idx + 8];
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w2[1] = tmp[idx + 9];
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w2[2] = tmp[idx + 10];
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w2[3] = tmp[idx + 11];
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w3[0] = tmp[idx + 12];
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w3[1] = tmp[idx + 13];
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w3[2] = tmp[idx + 14];
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w3[3] = tmp[idx + 15];
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sha256_transform (w0, w1, w2, w3, h);
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}
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}
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else
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{
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for (int i = 0, j = loop_pos; i < loop_cnt; i += 64, j += 64)
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{
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const int idx = (j % pw_len64) / 4; // the optimization trick is to be able to do this
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u32 w0[4];
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u32 w1[4];
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u32 w2[4];
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u32 w3[4];
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w0[0] = tmps[gid].tmp[idx + 0];
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w0[1] = tmps[gid].tmp[idx + 1];
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w0[2] = tmps[gid].tmp[idx + 2];
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w0[3] = tmps[gid].tmp[idx + 3];
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w1[0] = tmps[gid].tmp[idx + 4];
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w1[1] = tmps[gid].tmp[idx + 5];
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w1[2] = tmps[gid].tmp[idx + 6];
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w1[3] = tmps[gid].tmp[idx + 7];
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w2[0] = tmps[gid].tmp[idx + 8];
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w2[1] = tmps[gid].tmp[idx + 9];
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w2[2] = tmps[gid].tmp[idx + 10];
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w2[3] = tmps[gid].tmp[idx + 11];
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w3[0] = tmps[gid].tmp[idx + 12];
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w3[1] = tmps[gid].tmp[idx + 13];
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w3[2] = tmps[gid].tmp[idx + 14];
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w3[3] = tmps[gid].tmp[idx + 15];
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sha256_transform (w0, w1, w2, w3, h);
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}
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}
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tmps[gid].h[0] = h[0];
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tmps[gid].h[1] = h[1];
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tmps[gid].h[2] = h[2];
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tmps[gid].h[3] = h[3];
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tmps[gid].h[4] = h[4];
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tmps[gid].h[5] = h[5];
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tmps[gid].h[6] = h[6];
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tmps[gid].h[7] = h[7];
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}
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KERNEL_FQ void m26800_comp (KERN_ATTR_TMPS_ESALT (hmac_sha256_tmp_t, snmpv3_t))
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{
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/**
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* modifier
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*/
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const u64 gid = get_global_id (0);
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if (gid >= gid_max) return;
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u32 w0[4];
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u32 w1[4];
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u32 w2[4];
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u32 w3[4];
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w0[0] = 0x80000000;
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w0[1] = 0;
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w0[2] = 0;
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w0[3] = 0;
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w1[0] = 0;
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w1[1] = 0;
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w1[2] = 0;
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w1[3] = 0;
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w2[0] = 0;
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w2[1] = 0;
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w2[2] = 0;
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w2[3] = 0;
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w3[0] = 0;
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w3[1] = 0;
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w3[2] = 0;
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w3[3] = 1048576 * 8;
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u32 h[8];
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h[0] = tmps[gid].h[0];
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h[1] = tmps[gid].h[1];
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h[2] = tmps[gid].h[2];
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h[3] = tmps[gid].h[3];
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h[4] = tmps[gid].h[4];
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h[5] = tmps[gid].h[5];
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h[6] = tmps[gid].h[6];
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h[7] = tmps[gid].h[7];
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sha256_transform (w0, w1, w2, w3, h);
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sha256_ctx_t ctx;
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sha256_init (&ctx);
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u32 w[16];
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w[ 0] = h[0];
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w[ 1] = h[1];
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w[ 2] = h[2];
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w[ 3] = h[3];
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w[ 4] = h[4];
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w[ 5] = h[5];
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w[ 6] = h[6];
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w[ 7] = h[7];
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w[ 8] = 0;
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w[ 9] = 0;
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w[10] = 0;
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w[11] = 0;
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w[12] = 0;
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w[13] = 0;
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w[14] = 0;
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w[15] = 0;
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sha256_update (&ctx, w, 32);
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sha256_update_global_swap (&ctx, esalt_bufs[DIGESTS_OFFSET].engineID_buf, esalt_bufs[DIGESTS_OFFSET].engineID_len);
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w[ 0] = h[0];
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w[ 1] = h[1];
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w[ 2] = h[2];
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w[ 3] = h[3];
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w[ 4] = h[4];
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w[ 5] = h[5];
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w[ 6] = h[6];
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w[ 7] = h[7];
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w[ 8] = 0;
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w[ 9] = 0;
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w[10] = 0;
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w[11] = 0;
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w[12] = 0;
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w[13] = 0;
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w[14] = 0;
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w[15] = 0;
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sha256_update (&ctx, w, 32);
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sha256_final (&ctx);
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w[ 0] = ctx.h[0];
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w[ 1] = ctx.h[1];
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w[ 2] = ctx.h[2];
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w[ 3] = ctx.h[3];
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w[ 4] = ctx.h[4];
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w[ 5] = ctx.h[5];
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w[ 6] = ctx.h[6];
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w[ 7] = ctx.h[7];
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w[ 8] = 0;
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w[ 9] = 0;
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w[10] = 0;
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w[11] = 0;
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w[12] = 0;
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w[13] = 0;
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w[14] = 0;
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w[15] = 0;
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sha256_hmac_ctx_t hmac_ctx;
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sha256_hmac_init (&hmac_ctx, w, 32);
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sha256_hmac_update_global_swap (&hmac_ctx, esalt_bufs[DIGESTS_OFFSET].salt_buf, esalt_bufs[DIGESTS_OFFSET].salt_len);
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sha256_hmac_final (&hmac_ctx);
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const u32 r0 = hmac_ctx.opad.h[DGST_R0];
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const u32 r1 = hmac_ctx.opad.h[DGST_R1];
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const u32 r2 = hmac_ctx.opad.h[DGST_R2];
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const u32 r3 = hmac_ctx.opad.h[DGST_R3];
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#define il_pos 0
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#ifdef KERNEL_STATIC
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#include COMPARE_M
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#endif
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}
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@ -0,0 +1,337 @@
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/**
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* Author......: See docs/credits.txt
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* License.....: MIT
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*/
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#include "common.h"
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#include "types.h"
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#include "modules.h"
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#include "bitops.h"
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#include "convert.h"
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#include "shared.h"
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#include "memory.h"
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#include "emu_inc_hash_sha1.h"
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static const u32 ATTACK_EXEC = ATTACK_EXEC_OUTSIDE_KERNEL;
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static const u32 DGST_POS0 = 0;
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static const u32 DGST_POS1 = 1;
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static const u32 DGST_POS2 = 2;
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static const u32 DGST_POS3 = 3;
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static const u32 DGST_SIZE = DGST_SIZE_4_6;
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static const u32 HASH_CATEGORY = HASH_CATEGORY_NETWORK_PROTOCOL;
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static const char *HASH_NAME = "SNMPv3 HMAC-SHA256-192";
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static const u64 KERN_TYPE = 26800;
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static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE;
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static const u64 OPTS_TYPE = OPTS_TYPE_PT_GENERATE_LE;
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static const u32 SALT_TYPE = SALT_TYPE_EMBEDDED;
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static const char *ST_PASS = "hashcat";
|
||||
static const char *ST_HASH = "$SNMPv3$4$45889431$7585276599737564090383620785875362679570918402799211895350192983610621799047885344685052349746498170004419679809998081225537660774711595828022661503055854170724959205864916200803943987403894797803763481363727292279225961510615959487947720856537753019855530297295056779122144350124168183779842820374286984757533892647079640573333153143396873669433866800344639810381298050168882378150279566459307666090519521322815302807234891775832544445039651641425655552560443188806182642324260074431487445313192652657250751370429453104201042515913762789378530433301986580350004818693362476848691871673675659445549903680506046990324666901673291971652166488315974132495137618778248693199870322191689838829962702758419523119691721384156190269307593610430479672423773038949589918013851098014826303025169209691104391100698448756709167376495619227358406074004239019720054426442537351811110592798309899798157050114783730510485144587168960689222637040407284798304089491802615462370291323816279667792138184578665760500558880678181062362046229800381787440035656017470040087753144990921393458116599087055670067264879913812409968391970564185904377677084151443486003356616003528495750605129080488541279404701230256406769537633540790538993840001994448667033186814369838617950258925646831255009214425619864849786889274339803369923741038433445561276156132523400238192914216432204256425467734206133901586319913209169130225239005197164649118976947815053973991620162266974447853858458256357645692359369654447975747053244194895693264221530053171833268878231470099223799325721243415613411630825573731881407172997796505669046572568259071354047006445465146935309155702401448180827618102265276619554321281052975592010657285138946619551041266741457855926885313703662453134087502628246081150904608404970922549555759053744598264595885136892607797491556352245712414920090723217166690761677377687465170467631650187720861675760594906517486491314827635367948111347039584630077862097594777930458637889773296564015874734165862197875708654799960975367561065172801085838166681751675400275453999727992053489914032314886557511524110138141979947589094776031663264570900816201631633824654762248248805668317229291634483443458068978054635356784996769204180557000130172957152232863885190742315631622924490109766525818157610765334992830472354779514002105972270348518900692627110569460386663373886093497721570793034577661081462364460595701381729848934496026709342082328056794518778135826722253064384012917235631760724232491981271285825679491501595672776041021574940931247613127644522568100929407514262962178762077109203680576767235733058$8f58b2$5f38e6b85a1921eb118de1bcd1d8673848a657753ba97615";
|
||||
|
||||
u32 module_attack_exec (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ATTACK_EXEC; }
|
||||
u32 module_dgst_pos0 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS0; }
|
||||
u32 module_dgst_pos1 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS1; }
|
||||
u32 module_dgst_pos2 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS2; }
|
||||
u32 module_dgst_pos3 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS3; }
|
||||
u32 module_dgst_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_SIZE; }
|
||||
u32 module_hash_category (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return HASH_CATEGORY; }
|
||||
const char *module_hash_name (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return HASH_NAME; }
|
||||
u64 module_kern_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return KERN_TYPE; }
|
||||
u32 module_opti_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return OPTI_TYPE; }
|
||||
u64 module_opts_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return OPTS_TYPE; }
|
||||
u32 module_salt_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return SALT_TYPE; }
|
||||
const char *module_st_hash (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ST_HASH; }
|
||||
const char *module_st_pass (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ST_PASS; }
|
||||
|
||||
static const char *SIGNATURE_SNMPV3 = "$SNMPv3$4$";
|
||||
|
||||
#define SNMPV3_SALT_MAX 1500
|
||||
#define SNMPV3_ENGINEID_MAX 32
|
||||
#define SNMPV3_MSG_AUTH_PARAMS_MAX 24
|
||||
#define SNMPV3_ROUNDS 1048576
|
||||
#define SNMPV3_MAX_PW_LENGTH 64
|
||||
|
||||
#define SNMPV3_TMP_ELEMS 4096 // 4096 = (256 (max pw length) * 64) / sizeof (u32)
|
||||
#define SNMPV3_HASH_ELEMS 8
|
||||
|
||||
#define SNMPV3_MAX_SALT_ELEMS 512 // 512 * 4 = 2048 > 1500, also has to be multiple of 64
|
||||
#define SNMPV3_MAX_ENGINE_ELEMS 16 // 16 * 4 = 64 > 32, also has to be multiple of 64
|
||||
#define SNMPV3_MAX_PNUM_ELEMS 4 // 4 * 4 = 16 > 9
|
||||
|
||||
typedef struct hmac_sha224_tmp
|
||||
{
|
||||
u32 tmp[SNMPV3_TMP_ELEMS];
|
||||
u32 h[SNMPV3_HASH_ELEMS];
|
||||
|
||||
} hmac_sha224_tmp_t;
|
||||
|
||||
typedef struct snmpv3
|
||||
{
|
||||
u32 salt_buf[SNMPV3_MAX_SALT_ELEMS];
|
||||
u32 salt_len;
|
||||
|
||||
u32 engineID_buf[SNMPV3_MAX_ENGINE_ELEMS];
|
||||
u32 engineID_len;
|
||||
|
||||
u32 packet_number[SNMPV3_MAX_PNUM_ELEMS];
|
||||
|
||||
} snmpv3_t;
|
||||
|
||||
u64 module_esalt_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
|
||||
{
|
||||
const u64 esalt_size = (const u64) sizeof (snmpv3_t);
|
||||
|
||||
return esalt_size;
|
||||
}
|
||||
|
||||
u64 module_tmp_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
|
||||
{
|
||||
const u64 tmp_size = (const u64) sizeof (hmac_sha224_tmp_t);
|
||||
|
||||
return tmp_size;
|
||||
}
|
||||
|
||||
u32 module_kernel_loops_min (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
|
||||
{
|
||||
// we need to fix iteration count to guarantee the loop count is a multiple of 64
|
||||
// 2k calls to sha256_transform typically is enough to overtime pcie bottleneck
|
||||
|
||||
const u32 kernel_loops_min = 2048 * 64;
|
||||
|
||||
return kernel_loops_min;
|
||||
}
|
||||
|
||||
u32 module_kernel_loops_max (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
|
||||
{
|
||||
const u32 kernel_loops_max = 2048 * 64;
|
||||
|
||||
return kernel_loops_max;
|
||||
}
|
||||
|
||||
int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED void *digest_buf, MAYBE_UNUSED salt_t *salt, MAYBE_UNUSED void *esalt_buf, MAYBE_UNUSED void *hook_salt_buf, MAYBE_UNUSED hashinfo_t *hash_info, const char *line_buf, MAYBE_UNUSED const int line_len)
|
||||
{
|
||||
u32 *digest = (u32 *) digest_buf;
|
||||
|
||||
snmpv3_t *snmpv3 = (snmpv3_t *) esalt_buf;
|
||||
|
||||
token_t token;
|
||||
|
||||
token.token_cnt = 5;
|
||||
token.signatures_cnt = 1;
|
||||
token.signatures_buf[0] = SIGNATURE_SNMPV3;
|
||||
|
||||
token.len[0] = 10;
|
||||
token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
|
||||
| TOKEN_ATTR_VERIFY_SIGNATURE;
|
||||
|
||||
// packet number
|
||||
token.len_min[1] = 1;
|
||||
token.len_max[1] = 8;
|
||||
token.sep[1] = '$';
|
||||
token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH
|
||||
| TOKEN_ATTR_VERIFY_DIGIT;
|
||||
// salt
|
||||
token.len_min[2] = 24 * 2;
|
||||
token.len_max[2] = SNMPV3_SALT_MAX * 2;
|
||||
token.sep[2] = '$';
|
||||
token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH
|
||||
| TOKEN_ATTR_VERIFY_HEX;
|
||||
|
||||
// engineid
|
||||
token.len_min[3] = 5;
|
||||
token.len_max[3] = SNMPV3_ENGINEID_MAX;
|
||||
token.sep[3] = '$';
|
||||
token.attr[3] = TOKEN_ATTR_VERIFY_LENGTH;
|
||||
|
||||
// digest
|
||||
token.len_min[4] = SNMPV3_MSG_AUTH_PARAMS_MAX * 2;
|
||||
token.len_max[4] = SNMPV3_MSG_AUTH_PARAMS_MAX * 2;
|
||||
token.sep[4] = '$';
|
||||
token.attr[4] = TOKEN_ATTR_VERIFY_LENGTH
|
||||
| TOKEN_ATTR_VERIFY_HEX;
|
||||
|
||||
const int rc_tokenizer = input_tokenizer ((const u8 *) line_buf, line_len, &token);
|
||||
|
||||
if (rc_tokenizer != PARSER_OK) return (rc_tokenizer);
|
||||
|
||||
// packet number
|
||||
|
||||
const u8 *packet_number_pos = token.buf[1];
|
||||
const int packet_number_len = token.len[1];
|
||||
|
||||
memset (snmpv3->packet_number, 0, sizeof (snmpv3->packet_number));
|
||||
|
||||
strncpy ((char *) snmpv3->packet_number, (char *) packet_number_pos, packet_number_len);
|
||||
|
||||
// salt
|
||||
|
||||
const u8 *salt_pos = token.buf[2];
|
||||
const int salt_len = token.len[2];
|
||||
|
||||
u8 *salt_ptr = (u8 *) snmpv3->salt_buf;
|
||||
|
||||
snmpv3->salt_len = hex_decode (salt_pos, salt_len, salt_ptr);
|
||||
|
||||
salt->salt_iter = SNMPV3_ROUNDS;
|
||||
|
||||
// handle unique salts detection
|
||||
|
||||
sha1_ctx_t sha1_ctx;
|
||||
|
||||
sha1_init (&sha1_ctx);
|
||||
sha1_update (&sha1_ctx, snmpv3->salt_buf, snmpv3->salt_len);
|
||||
sha1_final (&sha1_ctx);
|
||||
|
||||
// store sha1(snmpv3->salt_buf) in salt_buf
|
||||
|
||||
salt->salt_len = 20;
|
||||
|
||||
memcpy (salt->salt_buf, sha1_ctx.h, salt->salt_len);
|
||||
|
||||
// engineid
|
||||
|
||||
const u8 *engineID_pos = token.buf[3];
|
||||
const int engineID_len = token.len[3];
|
||||
|
||||
u8 *engineID_ptr = (u8 *) snmpv3->engineID_buf;
|
||||
|
||||
snmpv3->engineID_len = hex_decode (engineID_pos, engineID_len, engineID_ptr);
|
||||
|
||||
// digest
|
||||
|
||||
const u8 *hash_pos = token.buf[4];
|
||||
|
||||
digest[0] = hex_to_u32 (hash_pos + 0);
|
||||
digest[1] = hex_to_u32 (hash_pos + 8);
|
||||
digest[2] = hex_to_u32 (hash_pos + 16);
|
||||
digest[3] = hex_to_u32 (hash_pos + 24);
|
||||
digest[4] = hex_to_u32 (hash_pos + 32);
|
||||
digest[5] = hex_to_u32 (hash_pos + 40);
|
||||
|
||||
digest[0] = byte_swap_32 (digest[0]);
|
||||
digest[1] = byte_swap_32 (digest[1]);
|
||||
digest[2] = byte_swap_32 (digest[2]);
|
||||
digest[3] = byte_swap_32 (digest[3]);
|
||||
digest[4] = byte_swap_32 (digest[4]);
|
||||
digest[5] = byte_swap_32 (digest[5]);
|
||||
|
||||
return (PARSER_OK);
|
||||
}
|
||||
|
||||
int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const void *digest_buf, MAYBE_UNUSED const salt_t *salt, MAYBE_UNUSED const void *esalt_buf, MAYBE_UNUSED const void *hook_salt_buf, MAYBE_UNUSED const hashinfo_t *hash_info, char *line_buf, MAYBE_UNUSED const int line_size)
|
||||
{
|
||||
const u32 *digest = (const u32 *) digest_buf;
|
||||
|
||||
snmpv3_t *snmpv3 = (snmpv3_t *) esalt_buf;
|
||||
|
||||
u8 *out_buf = (u8 *) line_buf;
|
||||
|
||||
int out_len = snprintf (line_buf, line_size, "%s%s$", SIGNATURE_SNMPV3, (char *) snmpv3->packet_number);
|
||||
|
||||
out_len += hex_encode ((u8 *) snmpv3->salt_buf, snmpv3->salt_len, out_buf + out_len);
|
||||
|
||||
out_buf[out_len] = '$';
|
||||
|
||||
out_len++;
|
||||
|
||||
out_len += hex_encode ((u8 *) snmpv3->engineID_buf, snmpv3->engineID_len, out_buf + out_len);
|
||||
|
||||
out_buf[out_len] = '$';
|
||||
|
||||
out_len++;
|
||||
|
||||
u32 digest_tmp[6];
|
||||
|
||||
digest_tmp[0] = byte_swap_32 (digest[0]);
|
||||
digest_tmp[1] = byte_swap_32 (digest[1]);
|
||||
digest_tmp[2] = byte_swap_32 (digest[2]);
|
||||
digest_tmp[3] = byte_swap_32 (digest[3]);
|
||||
digest_tmp[4] = byte_swap_32 (digest[4]);
|
||||
digest_tmp[5] = byte_swap_32 (digest[5]);
|
||||
|
||||
u32_to_hex (digest_tmp[0], out_buf + out_len); out_len += 8;
|
||||
u32_to_hex (digest_tmp[1], out_buf + out_len); out_len += 8;
|
||||
u32_to_hex (digest_tmp[2], out_buf + out_len); out_len += 8;
|
||||
u32_to_hex (digest_tmp[3], out_buf + out_len); out_len += 8;
|
||||
u32_to_hex (digest_tmp[4], out_buf + out_len); out_len += 8;
|
||||
u32_to_hex (digest_tmp[5], out_buf + out_len); out_len += 8;
|
||||
|
||||
out_buf[out_len] = 0;
|
||||
|
||||
return out_len;
|
||||
}
|
||||
|
||||
void module_init (module_ctx_t *module_ctx)
|
||||
{
|
||||
module_ctx->module_context_size = MODULE_CONTEXT_SIZE_CURRENT;
|
||||
module_ctx->module_interface_version = MODULE_INTERFACE_VERSION_CURRENT;
|
||||
|
||||
module_ctx->module_attack_exec = module_attack_exec;
|
||||
module_ctx->module_benchmark_esalt = MODULE_DEFAULT;
|
||||
module_ctx->module_benchmark_hook_salt = MODULE_DEFAULT;
|
||||
module_ctx->module_benchmark_mask = MODULE_DEFAULT;
|
||||
module_ctx->module_benchmark_salt = MODULE_DEFAULT;
|
||||
module_ctx->module_build_plain_postprocess = MODULE_DEFAULT;
|
||||
module_ctx->module_deep_comp_kernel = MODULE_DEFAULT;
|
||||
module_ctx->module_dgst_pos0 = module_dgst_pos0;
|
||||
module_ctx->module_dgst_pos1 = module_dgst_pos1;
|
||||
module_ctx->module_dgst_pos2 = module_dgst_pos2;
|
||||
module_ctx->module_dgst_pos3 = module_dgst_pos3;
|
||||
module_ctx->module_dgst_size = module_dgst_size;
|
||||
module_ctx->module_dictstat_disable = MODULE_DEFAULT;
|
||||
module_ctx->module_esalt_size = module_esalt_size;
|
||||
module_ctx->module_extra_buffer_size = MODULE_DEFAULT;
|
||||
module_ctx->module_extra_tmp_size = MODULE_DEFAULT;
|
||||
module_ctx->module_forced_outfile_format = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_binary_count = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_binary_parse = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_binary_save = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_decode_potfile = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_decode_zero_hash = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_decode = module_hash_decode;
|
||||
module_ctx->module_hash_encode_status = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_encode_potfile = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_encode = module_hash_encode;
|
||||
module_ctx->module_hash_init_selftest = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_mode = MODULE_DEFAULT;
|
||||
module_ctx->module_hash_category = module_hash_category;
|
||||
module_ctx->module_hash_name = module_hash_name;
|
||||
module_ctx->module_hashes_count_min = MODULE_DEFAULT;
|
||||
module_ctx->module_hashes_count_max = MODULE_DEFAULT;
|
||||
module_ctx->module_hlfmt_disable = MODULE_DEFAULT;
|
||||
module_ctx->module_hook_extra_param_size = MODULE_DEFAULT;
|
||||
module_ctx->module_hook_extra_param_init = MODULE_DEFAULT;
|
||||
module_ctx->module_hook_extra_param_term = MODULE_DEFAULT;
|
||||
module_ctx->module_hook12 = MODULE_DEFAULT;
|
||||
module_ctx->module_hook23 = MODULE_DEFAULT;
|
||||
module_ctx->module_hook_salt_size = MODULE_DEFAULT;
|
||||
module_ctx->module_hook_size = MODULE_DEFAULT;
|
||||
module_ctx->module_jit_build_options = MODULE_DEFAULT;
|
||||
module_ctx->module_jit_cache_disable = MODULE_DEFAULT;
|
||||
module_ctx->module_kernel_accel_max = MODULE_DEFAULT;
|
||||
module_ctx->module_kernel_accel_min = MODULE_DEFAULT;
|
||||
module_ctx->module_kernel_loops_max = module_kernel_loops_max;
|
||||
module_ctx->module_kernel_loops_min = module_kernel_loops_min;
|
||||
module_ctx->module_kernel_threads_max = MODULE_DEFAULT;
|
||||
module_ctx->module_kernel_threads_min = MODULE_DEFAULT;
|
||||
module_ctx->module_kern_type = module_kern_type;
|
||||
module_ctx->module_kern_type_dynamic = MODULE_DEFAULT;
|
||||
module_ctx->module_opti_type = module_opti_type;
|
||||
module_ctx->module_opts_type = module_opts_type;
|
||||
module_ctx->module_outfile_check_disable = MODULE_DEFAULT;
|
||||
module_ctx->module_outfile_check_nocomp = MODULE_DEFAULT;
|
||||
module_ctx->module_potfile_custom_check = MODULE_DEFAULT;
|
||||
module_ctx->module_potfile_disable = MODULE_DEFAULT;
|
||||
module_ctx->module_potfile_keep_all_hashes = MODULE_DEFAULT;
|
||||
module_ctx->module_pwdump_column = MODULE_DEFAULT;
|
||||
module_ctx->module_pw_max = MODULE_DEFAULT;
|
||||
module_ctx->module_pw_min = MODULE_DEFAULT;
|
||||
module_ctx->module_salt_max = MODULE_DEFAULT;
|
||||
module_ctx->module_salt_min = MODULE_DEFAULT;
|
||||
module_ctx->module_salt_type = module_salt_type;
|
||||
module_ctx->module_separator = MODULE_DEFAULT;
|
||||
module_ctx->module_st_hash = module_st_hash;
|
||||
module_ctx->module_st_pass = module_st_pass;
|
||||
module_ctx->module_tmp_size = module_tmp_size;
|
||||
module_ctx->module_unstable_warning = MODULE_DEFAULT;
|
||||
module_ctx->module_warmup_disable = MODULE_DEFAULT;
|
||||
}
|
||||
@ -0,0 +1,79 @@
|
||||
#!/usr/bin/env perl
|
||||
|
||||
##
|
||||
## Author......: See docs/credits.txt
|
||||
## License.....: MIT
|
||||
##
|
||||
|
||||
use strict;
|
||||
use warnings;
|
||||
|
||||
use Digest::SHA qw (sha256 sha256_hex);
|
||||
use Digest::HMAC qw (hmac hmac_hex);
|
||||
|
||||
sub module_constraints { [[1, 256], [48, 3000], [-1, -1], [-1, -1], [-1, -1]] }
|
||||
|
||||
sub module_generate_hash
|
||||
{
|
||||
my $word = shift;
|
||||
my $salt = shift;
|
||||
my $pkt_num = shift // int(rand(99999999));
|
||||
my $engineID = shift // random_hex_string(6);
|
||||
|
||||
# make even if needed
|
||||
|
||||
if (length($salt) %2 == 1)
|
||||
{
|
||||
$salt = $salt . "8";
|
||||
}
|
||||
|
||||
my $string1 = $word x 1048576;
|
||||
|
||||
$string1 = substr ($string1, 0, 1048576);
|
||||
|
||||
my $sha256_digest1 = sha256_hex ($string1);
|
||||
|
||||
my $buf = join '', $sha256_digest1, $engineID, $sha256_digest1;
|
||||
|
||||
my $sha256_digest2 = sha256(pack("H*", $buf));
|
||||
|
||||
my $digest = hmac_hex (pack("H*", $salt), $sha256_digest2, \&sha256);
|
||||
|
||||
$digest = substr ($digest, 0, 48);
|
||||
|
||||
my $hash = sprintf ("\$SNMPv3\$4\$%s\$%s\$%s\$%s", $pkt_num, $salt, $engineID, $digest);
|
||||
|
||||
return $hash;
|
||||
}
|
||||
|
||||
sub module_verify_hash
|
||||
{
|
||||
my $line = shift;
|
||||
|
||||
my $idx = index ($line, ':');
|
||||
|
||||
return unless $idx >= 0;
|
||||
|
||||
my $hash = substr ($line, 0, $idx);
|
||||
my $word = substr ($line, $idx + 1);
|
||||
|
||||
return unless length ($word) gt 0;
|
||||
return unless substr ($hash, 0, 10) eq '$SNMPv3$4$';
|
||||
|
||||
my (undef, $signature, $version, $pkt_num, $salt, $engineID, $digest) = split '\$', $hash;
|
||||
|
||||
return unless defined $signature;
|
||||
return unless defined $version;
|
||||
return unless defined $pkt_num;
|
||||
return unless defined $salt;
|
||||
return unless defined $engineID;
|
||||
return unless defined $digest;
|
||||
|
||||
my $word_packed = pack_if_HEX_notation ($word);
|
||||
|
||||
my $new_hash = module_generate_hash ($word_packed, $salt, $pkt_num, $engineID);
|
||||
|
||||
return ($new_hash, $word);
|
||||
}
|
||||
|
||||
1;
|
||||
Loading…
Reference in new issue