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Evil Bug: Because of not-zeroing a buffer it's possible a hash was cracked but not reported as cracked because it was not in scope, but when it was in scope it was already marked as cracked and therefore not reported

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This commit is contained in:
Jens Steube 2016-02-23 10:36:43 +01:00
parent 61f87b2981
commit efad2bafac
2 changed files with 29 additions and 5 deletions
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4
include/types.h
View File

@ -879,6 +879,10 @@ struct __hc_device_param
uint size_pws; uint size_pws;
uint size_tmps; uint size_tmps;
uint size_hooks; uint size_hooks;
uint size_bfs;
uint size_combs;
uint size_rules;
uint size_rules_c;
uint size_root_css; uint size_root_css;
uint size_markov_css; uint size_markov_css;
uint size_digests; uint size_digests;

24
src/oclHashcat.c
View File

@ -4495,7 +4495,14 @@ static void *thread_calc_stdin (void *p)
device_param->pws_cnt = 0; device_param->pws_cnt = 0;
memset (device_param->pws_buf, 0, device_param->size_pws); if (attack_kern == ATTACK_KERN_STRAIGHT)
{
run_kernel_bzero (device_param, device_param->d_rules_c, device_param->size_rules_c);
}
else if (attack_kern == ATTACK_KERN_COMBI)
{
run_kernel_bzero (device_param, device_param->d_combs_c, device_param->size_combs);
}
} }
} }
@ -4538,6 +4545,8 @@ static void *thread_calc (void *p)
run_cracker (device_param, pws_cnt); run_cracker (device_param, pws_cnt);
device_param->pws_cnt = 0; device_param->pws_cnt = 0;
run_kernel_bzero (device_param, device_param->d_bfs_c, device_param->size_bfs);
} }
if (data.devices_status == STATUS_STOP_AT_CHECKPOINT) check_checkpoint (); if (data.devices_status == STATUS_STOP_AT_CHECKPOINT) check_checkpoint ();
@ -4756,7 +4765,14 @@ static void *thread_calc (void *p)
device_param->pws_cnt = 0; device_param->pws_cnt = 0;
memset (device_param->pws_buf, 0, device_param->size_pws); if (attack_kern == ATTACK_KERN_STRAIGHT)
{
run_kernel_bzero (device_param, device_param->d_rules_c, device_param->size_rules_c);
}
else if (attack_kern == ATTACK_KERN_COMBI)
{
run_kernel_bzero (device_param, device_param->d_combs_c, device_param->size_combs);
}
} }
if (data.devices_status == STATUS_STOP_AT_CHECKPOINT) check_checkpoint (); if (data.devices_status == STATUS_STOP_AT_CHECKPOINT) check_checkpoint ();
@ -13682,6 +13698,10 @@ int main (int argc, char **argv)
} }
*/ */
device_param->size_bfs = size_bfs;
device_param->size_combs = size_combs;
device_param->size_rules = size_rules;
device_param->size_rules_c = size_rules_c;
device_param->size_pws = size_pws; device_param->size_pws = size_pws;
device_param->size_tmps = size_tmps; device_param->size_tmps = size_tmps;
device_param->size_hooks = size_hooks; device_param->size_hooks = size_hooks;