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Fix segfault if a weak hash is detected for some fast hashes

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This commit is contained in:
Jens Steube 2016-01-10 21:37:45 +01:00
parent 1d628ca6e0
commit 87dca98a51
1 changed files with 31 additions and 22 deletions
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53
src/oclHashcat.c
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@ -1994,24 +1994,27 @@ static void check_hash (hc_device_param_t *device_param, const uint salt_pos, co
}
}
if (data.opti_type & OPTI_TYPE_BRUTE_FORCE) // lots of optimizations can happen here
if (data.attack_mode == ATTACK_MODE_BF)
{
if (data.opti_type & OPTI_TYPE_SINGLE_HASH)
if (data.opti_type & OPTI_TYPE_BRUTE_FORCE) // lots of optimizations can happen here
{
if (data.opti_type & OPTI_TYPE_APPENDED_SALT)
if (data.opti_type & OPTI_TYPE_SINGLE_HASH)
{
plain_len = plain_len - data.salts_buf[0].salt_len;
}
}
if (data.opts_type & OPTS_TYPE_PT_UNICODE)
{
for (uint i = 0, j = 0; i < plain_len; i += 2, j += 1)
{
plain_ptr[j] = plain_ptr[i];
if (data.opti_type & OPTI_TYPE_APPENDED_SALT)
{
plain_len = plain_len - data.salts_buf[0].salt_len;
}
}
plain_len = plain_len / 2;
if (data.opts_type & OPTS_TYPE_PT_UNICODE)
{
for (uint i = 0, j = 0; i < plain_len; i += 2, j += 1)
{
plain_ptr[j] = plain_ptr[i];
}
plain_len = plain_len / 2;
}
}
}
@ -4523,15 +4526,17 @@ static void weak_hash_check (hc_device_param_t *device_param, const uint salt_po
device_param->kernel_params_buf32[30] = 0;
device_param->kernel_params_buf32[31] = 1;
char *dictfile_old = data.dictfile;
char *dictfile2_old = data.dictfile2;
char *mask_old = data.mask;
char *dictfile_old = data.dictfile;
char *dictfile2_old = data.dictfile2;
char *mask_old = data.mask;
int attack_mode_old = data.attack_mode;
const char *weak_hash_check = "weak-hash-check";
data.dictfile = (char *) weak_hash_check;
data.dictfile2 = (char *) weak_hash_check;
data.mask = (char *) weak_hash_check;
data.dictfile = (char *) weak_hash_check;
data.dictfile2 = (char *) weak_hash_check;
data.mask = (char *) weak_hash_check;
data.attack_mode = ATTACK_MODE_STRAIGHT;
/**
* run the kernel
@ -4581,9 +4586,10 @@ static void weak_hash_check (hc_device_param_t *device_param, const uint salt_po
device_param->kernel_params_buf32[30] = 0;
device_param->kernel_params_buf32[31] = 0;
data.dictfile = dictfile_old;
data.dictfile2 = dictfile2_old;
data.mask = mask_old;
data.dictfile = dictfile_old;
data.dictfile2 = dictfile2_old;
data.mask = mask_old;
data.attack_mode = attack_mode_old;
}
// hlfmt hashcat
@ -16466,10 +16472,13 @@ int main (int argc, char **argv)
if (device_param->kernel_tb) hc_clReleaseKernel (device_param->kernel_tb);
if (device_param->kernel_tm) hc_clReleaseKernel (device_param->kernel_tm);
if (device_param->kernel_amp) hc_clReleaseKernel (device_param->kernel_amp);
if (device_param->kernel_weak) hc_clReleaseKernel (device_param->kernel_weak);
if (device_param->program) hc_clReleaseProgram (device_param->program);
if (device_param->program_mp) hc_clReleaseProgram (device_param->program_mp);
if (device_param->program_amp) hc_clReleaseProgram (device_param->program_amp);
if (device_param->program_weak) hc_clReleaseProgram (device_param->program_weak);
if (device_param->command_queue) hc_clReleaseCommandQueue (device_param->command_queue);
if (device_param->context) hc_clReleaseContext (device_param->context);
}