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Added hash-mode: SNMPv3 HMAC-MD5-96/HMAC-SHA1-96

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This commit is contained in:
Gabriele Gristina 2021-07-24 17:03:50 +02:00
parent 640d95a00f
commit 7c8d7f7831
5 changed files with 1028 additions and 0 deletions
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577
OpenCL/m25000-pure.cl Normal file
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/**
* Author......: See docs/credits.txt
* License.....: MIT
*/
//#define NEW_SIMD_CODE
#ifdef KERNEL_STATIC
#include "inc_vendor.h"
#include "inc_types.h"
#include "inc_platform.cl"
#include "inc_common.cl"
#include "inc_simd.cl"
#include "inc_hash_md5.cl"
#include "inc_hash_sha1.cl"
#endif
#define COMPARE_S "inc_comp_single.cl"
#define COMPARE_M "inc_comp_multi.cl"
#define SNMPV3_SALT_MAX 1500
#define SNMPV3_ENGINEID_MAX 32
#define SNMPV3_MSG_AUTH_PARAMS_MAX 12
#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_MD5 4
#define SNMPV3_HASH_ELEMS_SHA1 8 // 8 = aligned 5
#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_md5_tmp
{
u32 tmp_md5[SNMPV3_TMP_ELEMS];
u32 tmp_sha1[SNMPV3_TMP_ELEMS];
u32 h_md5[SNMPV3_HASH_ELEMS_MD5];
u32 h_sha1[SNMPV3_HASH_ELEMS_SHA1];
} hmac_md5_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;
KERNEL_FQ void m25000_init (KERN_ATTR_TMPS_ESALT (hmac_md5_tmp_t, snmpv3_t))
{
/**
* modifier
*/
const u64 gid = get_global_id (0);
if (gid >= gid_max) return;
/**
* base
*/
const u32 pw_len = pws[gid].pw_len;
u32 w[64] = { 0 };
for (u32 i = 0, idx = 0; i < pw_len; i += 4, idx += 1)
{
w[idx] = pws[gid].i[idx];
}
u8 *src_ptr = (u8 *) w;
// password 64 times, also swapped
u32 dst_buf[16];
u8 *dst_ptr = (u8 *) dst_buf;
int tmp_idx = 0;
for (int i = 0; i < 64; i++)
{
for (int j = 0; j < pw_len; j++)
{
const int dst_idx = tmp_idx & 63;
dst_ptr[dst_idx] = src_ptr[j];
// write to global memory every time 64 byte are written into cache
if (dst_idx == 63)
{
const int tmp_idx4 = (tmp_idx - 63) / 4;
// md5
tmps[gid].tmp_md5[tmp_idx4 + 0] = dst_buf[ 0];
tmps[gid].tmp_md5[tmp_idx4 + 1] = dst_buf[ 1];
tmps[gid].tmp_md5[tmp_idx4 + 2] = dst_buf[ 2];
tmps[gid].tmp_md5[tmp_idx4 + 3] = dst_buf[ 3];
tmps[gid].tmp_md5[tmp_idx4 + 4] = dst_buf[ 4];
tmps[gid].tmp_md5[tmp_idx4 + 5] = dst_buf[ 5];
tmps[gid].tmp_md5[tmp_idx4 + 6] = dst_buf[ 6];
tmps[gid].tmp_md5[tmp_idx4 + 7] = dst_buf[ 7];
tmps[gid].tmp_md5[tmp_idx4 + 8] = dst_buf[ 8];
tmps[gid].tmp_md5[tmp_idx4 + 9] = dst_buf[ 9];
tmps[gid].tmp_md5[tmp_idx4 + 10] = dst_buf[10];
tmps[gid].tmp_md5[tmp_idx4 + 11] = dst_buf[11];
tmps[gid].tmp_md5[tmp_idx4 + 12] = dst_buf[12];
tmps[gid].tmp_md5[tmp_idx4 + 13] = dst_buf[13];
tmps[gid].tmp_md5[tmp_idx4 + 14] = dst_buf[14];
tmps[gid].tmp_md5[tmp_idx4 + 15] = dst_buf[15];
// sha1
tmps[gid].tmp_sha1[tmp_idx4 + 0] = hc_swap32_S (dst_buf[ 0]);
tmps[gid].tmp_sha1[tmp_idx4 + 1] = hc_swap32_S (dst_buf[ 1]);
tmps[gid].tmp_sha1[tmp_idx4 + 2] = hc_swap32_S (dst_buf[ 2]);
tmps[gid].tmp_sha1[tmp_idx4 + 3] = hc_swap32_S (dst_buf[ 3]);
tmps[gid].tmp_sha1[tmp_idx4 + 4] = hc_swap32_S (dst_buf[ 4]);
tmps[gid].tmp_sha1[tmp_idx4 + 5] = hc_swap32_S (dst_buf[ 5]);
tmps[gid].tmp_sha1[tmp_idx4 + 6] = hc_swap32_S (dst_buf[ 6]);
tmps[gid].tmp_sha1[tmp_idx4 + 7] = hc_swap32_S (dst_buf[ 7]);
tmps[gid].tmp_sha1[tmp_idx4 + 8] = hc_swap32_S (dst_buf[ 8]);
tmps[gid].tmp_sha1[tmp_idx4 + 9] = hc_swap32_S (dst_buf[ 9]);
tmps[gid].tmp_sha1[tmp_idx4 + 10] = hc_swap32_S (dst_buf[10]);
tmps[gid].tmp_sha1[tmp_idx4 + 11] = hc_swap32_S (dst_buf[11]);
tmps[gid].tmp_sha1[tmp_idx4 + 12] = hc_swap32_S (dst_buf[12]);
tmps[gid].tmp_sha1[tmp_idx4 + 13] = hc_swap32_S (dst_buf[13]);
tmps[gid].tmp_sha1[tmp_idx4 + 14] = hc_swap32_S (dst_buf[14]);
tmps[gid].tmp_sha1[tmp_idx4 + 15] = hc_swap32_S (dst_buf[15]);
}
tmp_idx++;
}
}
// hash md5
tmps[gid].h_md5[0] = MD5M_A;
tmps[gid].h_md5[1] = MD5M_B;
tmps[gid].h_md5[2] = MD5M_C;
tmps[gid].h_md5[3] = MD5M_D;
// hash sha1
tmps[gid].h_sha1[0] = SHA1M_A;
tmps[gid].h_sha1[1] = SHA1M_B;
tmps[gid].h_sha1[2] = SHA1M_C;
tmps[gid].h_sha1[3] = SHA1M_D;
tmps[gid].h_sha1[4] = SHA1M_E;
}
KERNEL_FQ void m25000_loop (KERN_ATTR_TMPS_ESALT (hmac_md5_tmp_t, snmpv3_t))
{
/**
* base
*/
const u64 gid = get_global_id (0);
if (gid >= gid_max) return;
u32 h_md5[4];
h_md5[0] = tmps[gid].h_md5[0];
h_md5[1] = tmps[gid].h_md5[1];
h_md5[2] = tmps[gid].h_md5[2];
h_md5[3] = tmps[gid].h_md5[3];
u32 h_sha1[5];
h_sha1[0] = tmps[gid].h_sha1[0];
h_sha1[1] = tmps[gid].h_sha1[1];
h_sha1[2] = tmps[gid].h_sha1[2];
h_sha1[3] = tmps[gid].h_sha1[3];
h_sha1[4] = tmps[gid].h_sha1[4];
const u32 pw_len = pws[gid].pw_len;
const int pw_len64 = pw_len * 64;
#define SNMPV3_TMP_ELEMS_OPT 1024 // 1024 = (64 max pw length * 64) / sizeof (u32)
// for pw length > 64 we use global memory reads
u32 tmp_md5[SNMPV3_TMP_ELEMS_OPT];
u32 tmp_sha1[SNMPV3_TMP_ELEMS_OPT];
if (pw_len < 64)
{
for (int i = 0; i < pw_len64 / 4; i++)
{
tmp_md5[i] = tmps[gid].tmp_md5[i];
tmp_sha1[i] = tmps[gid].tmp_sha1[i];
}
for (int i = 0, j = loop_pos; i < loop_cnt; i += 64, j += 64)
{
const int idx = (j % pw_len64) / 4; // the optimization trick is to be able to do this
u32 w0[4];
u32 w1[4];
u32 w2[4];
u32 w3[4];
// md5
w0[0] = tmp_md5[idx + 0];
w0[1] = tmp_md5[idx + 1];
w0[2] = tmp_md5[idx + 2];
w0[3] = tmp_md5[idx + 3];
w1[0] = tmp_md5[idx + 4];
w1[1] = tmp_md5[idx + 5];
w1[2] = tmp_md5[idx + 6];
w1[3] = tmp_md5[idx + 7];
w2[0] = tmp_md5[idx + 8];
w2[1] = tmp_md5[idx + 9];
w2[2] = tmp_md5[idx + 10];
w2[3] = tmp_md5[idx + 11];
w3[0] = tmp_md5[idx + 12];
w3[1] = tmp_md5[idx + 13];
w3[2] = tmp_md5[idx + 14];
w3[3] = tmp_md5[idx + 15];
md5_transform (w0, w1, w2, w3, h_md5);
// sha1
w0[0] = tmp_sha1[idx + 0];
w0[1] = tmp_sha1[idx + 1];
w0[2] = tmp_sha1[idx + 2];
w0[3] = tmp_sha1[idx + 3];
w1[0] = tmp_sha1[idx + 4];
w1[1] = tmp_sha1[idx + 5];
w1[2] = tmp_sha1[idx + 6];
w1[3] = tmp_sha1[idx + 7];
w2[0] = tmp_sha1[idx + 8];
w2[1] = tmp_sha1[idx + 9];
w2[2] = tmp_sha1[idx + 10];
w2[3] = tmp_sha1[idx + 11];
w3[0] = tmp_sha1[idx + 12];
w3[1] = tmp_sha1[idx + 13];
w3[2] = tmp_sha1[idx + 14];
w3[3] = tmp_sha1[idx + 15];
sha1_transform (w0, w1, w2, w3, h_sha1);
}
}
else
{
for (int i = 0, j = loop_pos; i < loop_cnt; i += 64, j += 64)
{
const int idx = (j % pw_len64) / 4; // the optimization trick is to be able to do this
u32 w0[4];
u32 w1[4];
u32 w2[4];
u32 w3[4];
// md5
w0[0] = tmps[gid].tmp_md5[idx + 0];
w0[1] = tmps[gid].tmp_md5[idx + 1];
w0[2] = tmps[gid].tmp_md5[idx + 2];
w0[3] = tmps[gid].tmp_md5[idx + 3];
w1[0] = tmps[gid].tmp_md5[idx + 4];
w1[1] = tmps[gid].tmp_md5[idx + 5];
w1[2] = tmps[gid].tmp_md5[idx + 6];
w1[3] = tmps[gid].tmp_md5[idx + 7];
w2[0] = tmps[gid].tmp_md5[idx + 8];
w2[1] = tmps[gid].tmp_md5[idx + 9];
w2[2] = tmps[gid].tmp_md5[idx + 10];
w2[3] = tmps[gid].tmp_md5[idx + 11];
w3[0] = tmps[gid].tmp_md5[idx + 12];
w3[1] = tmps[gid].tmp_md5[idx + 13];
w3[2] = tmps[gid].tmp_md5[idx + 14];
w3[3] = tmps[gid].tmp_md5[idx + 15];
md5_transform (w0, w1, w2, w3, h_md5);
// sha1
w0[0] = tmps[gid].tmp_sha1[idx + 0];
w0[1] = tmps[gid].tmp_sha1[idx + 1];
w0[2] = tmps[gid].tmp_sha1[idx + 2];
w0[3] = tmps[gid].tmp_sha1[idx + 3];
w1[0] = tmps[gid].tmp_sha1[idx + 4];
w1[1] = tmps[gid].tmp_sha1[idx + 5];
w1[2] = tmps[gid].tmp_sha1[idx + 6];
w1[3] = tmps[gid].tmp_sha1[idx + 7];
w2[0] = tmps[gid].tmp_sha1[idx + 8];
w2[1] = tmps[gid].tmp_sha1[idx + 9];
w2[2] = tmps[gid].tmp_sha1[idx + 10];
w2[3] = tmps[gid].tmp_sha1[idx + 11];
w3[0] = tmps[gid].tmp_sha1[idx + 12];
w3[1] = tmps[gid].tmp_sha1[idx + 13];
w3[2] = tmps[gid].tmp_sha1[idx + 14];
w3[3] = tmps[gid].tmp_sha1[idx + 15];
sha1_transform (w0, w1, w2, w3, h_sha1);
}
}
tmps[gid].h_md5[0] = h_md5[0];
tmps[gid].h_md5[1] = h_md5[1];
tmps[gid].h_md5[2] = h_md5[2];
tmps[gid].h_md5[3] = h_md5[3];
tmps[gid].h_sha1[0] = h_sha1[0];
tmps[gid].h_sha1[1] = h_sha1[1];
tmps[gid].h_sha1[2] = h_sha1[2];
tmps[gid].h_sha1[3] = h_sha1[3];
tmps[gid].h_sha1[4] = h_sha1[4];
}
KERNEL_FQ void m25000_comp (KERN_ATTR_TMPS_ESALT (hmac_md5_tmp_t, snmpv3_t))
{
/**
* modifier
*/
const u64 gid = get_global_id (0);
if (gid >= gid_max) return;
u32 w0[4];
u32 w1[4];
u32 w2[4];
u32 w3[4];
// md5
w0[0] = 0x00000080;
w0[1] = 0;
w0[2] = 0;
w0[3] = 0;
w1[0] = 0;
w1[1] = 0;
w1[2] = 0;
w1[3] = 0;
w2[0] = 0;
w2[1] = 0;
w2[2] = 0;
w2[3] = 0;
w3[0] = 0;
w3[1] = 0;
w3[2] = 1048576 * 8;
w3[3] = 0;
u32 h_md5[4];
h_md5[0] = tmps[gid].h_md5[0];
h_md5[1] = tmps[gid].h_md5[1];
h_md5[2] = tmps[gid].h_md5[2];
h_md5[3] = tmps[gid].h_md5[3];
md5_transform (w0, w1, w2, w3, h_md5);
// sha1
w0[0] = 0x80000000;
w0[1] = 0;
w0[2] = 0;
w0[3] = 0;
w1[0] = 0;
w1[1] = 0;
w1[2] = 0;
w1[3] = 0;
w2[0] = 0;
w2[1] = 0;
w2[2] = 0;
w2[3] = 0;
w3[0] = 0;
w3[1] = 0;
w3[2] = 0;
w3[3] = 1048576 * 8;
u32 h_sha1[5];
h_sha1[0] = tmps[gid].h_sha1[0];
h_sha1[1] = tmps[gid].h_sha1[1];
h_sha1[2] = tmps[gid].h_sha1[2];
h_sha1[3] = tmps[gid].h_sha1[3];
h_sha1[4] = tmps[gid].h_sha1[4];
sha1_transform (w0, w1, w2, w3, h_sha1);
md5_ctx_t md5_ctx;
sha1_ctx_t sha1_ctx;
md5_init (&md5_ctx);
sha1_init (&sha1_ctx);
u32 w[16];
// md5
w[ 0] = h_md5[0];
w[ 1] = h_md5[1];
w[ 2] = h_md5[2];
w[ 3] = h_md5[3];
w[ 4] = 0;
w[ 5] = 0;
w[ 6] = 0;
w[ 7] = 0;
w[ 8] = 0;
w[ 9] = 0;
w[10] = 0;
w[11] = 0;
w[12] = 0;
w[13] = 0;
w[14] = 0;
w[15] = 0;
md5_update (&md5_ctx, w, 16);
// sha1
w[ 0] = h_sha1[0];
w[ 1] = h_sha1[1];
w[ 2] = h_sha1[2];
w[ 3] = h_sha1[3];
w[ 4] = h_sha1[4];
w[ 5] = 0;
w[ 6] = 0;
w[ 7] = 0;
w[ 8] = 0;
w[ 9] = 0;
w[10] = 0;
w[11] = 0;
w[12] = 0;
w[13] = 0;
w[14] = 0;
w[15] = 0;
sha1_update (&sha1_ctx, w, 20);
// engineID
md5_update_global (&md5_ctx, esalt_bufs[DIGESTS_OFFSET].engineID_buf, esalt_bufs[DIGESTS_OFFSET].engineID_len);
sha1_update_global_swap (&sha1_ctx, esalt_bufs[DIGESTS_OFFSET].engineID_buf, esalt_bufs[DIGESTS_OFFSET].engineID_len);
// md5
w[ 0] = h_md5[0];
w[ 1] = h_md5[1];
w[ 2] = h_md5[2];
w[ 3] = h_md5[3];
w[ 4] = 0;
w[ 5] = 0;
w[ 6] = 0;
w[ 7] = 0;
w[ 8] = 0;
w[ 9] = 0;
w[10] = 0;
w[11] = 0;
w[12] = 0;
w[13] = 0;
w[14] = 0;
w[15] = 0;
md5_update (&md5_ctx, w, 16);
// sha1
w[ 0] = h_sha1[0];
w[ 1] = h_sha1[1];
w[ 2] = h_sha1[2];
w[ 3] = h_sha1[3];
w[ 4] = h_sha1[4];
w[ 5] = 0;
w[ 6] = 0;
w[ 7] = 0;
w[ 8] = 0;
w[ 9] = 0;
w[10] = 0;
w[11] = 0;
w[12] = 0;
w[13] = 0;
w[14] = 0;
w[15] = 0;
sha1_update (&sha1_ctx, w, 20);
md5_final (&md5_ctx);
sha1_final (&sha1_ctx);
// md5
w[ 0] = md5_ctx.h[0];
w[ 1] = md5_ctx.h[1];
w[ 2] = md5_ctx.h[2];
w[ 3] = md5_ctx.h[3];
w[ 4] = 0;
w[ 5] = 0;
w[ 6] = 0;
w[ 7] = 0;
w[ 8] = 0;
w[ 9] = 0;
w[10] = 0;
w[11] = 0;
w[12] = 0;
w[13] = 0;
w[14] = 0;
w[15] = 0;
md5_hmac_ctx_t md5_hmac_ctx;
md5_hmac_init (&md5_hmac_ctx, w, 16);
md5_hmac_update_global (&md5_hmac_ctx, esalt_bufs[DIGESTS_OFFSET].salt_buf, esalt_bufs[DIGESTS_OFFSET].salt_len);
md5_hmac_final (&md5_hmac_ctx);
{
const u32 r0 = hc_swap32_S (md5_hmac_ctx.opad.h[DGST_R0]);
const u32 r1 = hc_swap32_S (md5_hmac_ctx.opad.h[DGST_R1]);
const u32 r2 = hc_swap32_S (md5_hmac_ctx.opad.h[DGST_R2]);
const u32 r3 = 0;
#define il_pos 0
#ifdef KERNEL_STATIC
#include COMPARE_M
#endif
}
// sha1
w[ 0] = sha1_ctx.h[0];
w[ 1] = sha1_ctx.h[1];
w[ 2] = sha1_ctx.h[2];
w[ 3] = sha1_ctx.h[3];
w[ 4] = sha1_ctx.h[4];
w[ 5] = 0;
w[ 6] = 0;
w[ 7] = 0;
w[ 8] = 0;
w[ 9] = 0;
w[10] = 0;
w[11] = 0;
w[12] = 0;
w[13] = 0;
w[14] = 0;
w[15] = 0;
sha1_hmac_ctx_t sha1_hmac_ctx;
sha1_hmac_init (&sha1_hmac_ctx, w, 20);
sha1_hmac_update_global_swap (&sha1_hmac_ctx, esalt_bufs[DIGESTS_OFFSET].salt_buf, esalt_bufs[DIGESTS_OFFSET].salt_len);
sha1_hmac_final (&sha1_hmac_ctx);
{
const u32 r0 = sha1_hmac_ctx.opad.h[DGST_R0];
const u32 r1 = sha1_hmac_ctx.opad.h[DGST_R1];
const u32 r2 = sha1_hmac_ctx.opad.h[DGST_R2];
const u32 r3 = 0;
#define il_pos 0
#ifdef KERNEL_STATIC
#include COMPARE_M
#endif
}
}

1
docs/changes.txt
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@ -39,6 +39,7 @@
- Added hash-mode: SNMPv3 HMAC-SHA1-96
- Added hash-mode: SNMPv3 HMAC-MD5-96
- Added hash-mode: SNMPv3 HMAC-MD5-96/HMAC-SHA1-96
* changes v6.2.2 -> v6.2.3

1
docs/readme.txt
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@ -156,6 +156,7 @@ NVIDIA GPUs require "NVIDIA Driver" (440.64 or later) and "CUDA Toolkit" (9.0 or
- IKE-PSK MD5
- IKE-PSK SHA1
- SNMPv3 HMAC-MD5-96
- SNMPv3 HMAC-MD5-96/HMAC-SHA1-96
- SNMPv3 HMAC-SHA1-96
- WPA-EAPOL-PBKDF2
- WPA-EAPOL-PMK

333
src/modules/module_25000.c Normal file
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@ -0,0 +1,333 @@
/**
* Author......: See docs/credits.txt
* License.....: MIT
*/
#include "common.h"
#include "types.h"
#include "modules.h"
#include "bitops.h"
#include "convert.h"
#include "shared.h"
#include "memory.h"
#include "emu_inc_hash_md5.h"
static const u32 ATTACK_EXEC = ATTACK_EXEC_OUTSIDE_KERNEL;
static const u32 DGST_POS0 = 0;
static const u32 DGST_POS1 = 1;
static const u32 DGST_POS2 = 2;
static const u32 DGST_POS3 = 3;
static const u32 DGST_SIZE = DGST_SIZE_4_4; // 4_3
static const u32 HASH_CATEGORY = HASH_CATEGORY_NETWORK_PROTOCOL;
static const char *HASH_NAME = "SNMPv3 HMAC-MD5-96/HMAC-SHA1-96";
static const u64 KERN_TYPE = 25000;
static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE;
static const u64 OPTS_TYPE = OPTS_TYPE_PT_GENERATE_LE;
static const u32 SALT_TYPE = SALT_TYPE_EMBEDDED;
static const char *ST_PASS = "hashcat";
static const char *ST_HASH = "$SNMPv3$0$66763052$13981919518623358902340156831753173612320956749283824166083320737667668557830898783481876963136410266762758410322896320705075044221495960812100760230106803899899467077793703068392752686845035561487927252457444567685389901239388468830507087105054207914325254376053788152029716918450770264047103676562621965276752797029332926039166807829108367446173251908238116020942421323633620301312478670302264165059728208402342845743839533979473825394866704960428648622730299023225638967097578710279784722583947877561544154219162080289188160001741612377820114739093961409809862173307722539556954826052612794054060797358016549602977742745078911393042420821004243620362464971828700104979572910001640083882586179153483503492341163054930853321963503411228241996417991605003371264529827508426941919673592574025732354318435733211018917539824570724324796232199960952117561108106623865308577977944499366806697863259301760429786001824121720055893438673268643594146796410437039466462606490272723136671298529920486664067752007564122205089571790718437001200506203464426405927405102300269665189637001279369690218157456566218400534722049383049029139069701182053729830585217732347396312967325628046845068493719801191260136945971516486442056102815519090214442808707545803919529217103430588641187558031052830941742920355893755319896626873275796534820394248837050567688575113833311009595128372820474678989203565094681918285106102363272728922586582037066265522397748326630668375500179630717875844561081542915676557961288028298248995547031274515608973804660067065502484039882958958452781062725550260382637592283691962996228392332833626159043179186189904614052189303508782635840692436969244901198720814518$79f7b1$57e964c7cb117647004cf132";
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$0$";
#define SNMPV3_SALT_MAX 1500
#define SNMPV3_ENGINEID_MAX 32
#define SNMPV3_MSG_AUTH_PARAMS_MAX 12
#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_MD5 4
#define SNMPV3_HASH_ELEMS_SHA1 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_md5_tmp
{
u32 tmp_md5[SNMPV3_TMP_ELEMS];
u32 tmp_sha1[SNMPV3_TMP_ELEMS];
u32 h_md5[SNMPV3_HASH_ELEMS_MD5];
u32 h_sha1[SNMPV3_HASH_ELEMS_SHA1];
} hmac_md5_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_md5_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 md5_transform/sha1_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] = '$';
token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
// salt
token.len_min[2] = 12 * 2;
token.len_max[2] = SNMPV3_SALT_MAX * 2;
token.sep[2] = '$';
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
md5_ctx_t md5_ctx;
md5_init (&md5_ctx);
md5_update (&md5_ctx, snmpv3->salt_buf, snmpv3->salt_len);
md5_final (&md5_ctx);
// store md5(snmpv3->salt_buf) in salt_buf
salt->salt_len = 16;
memcpy (salt->salt_buf, md5_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] = 0;
// prefer sha1 due to speed
digest[0] = byte_swap_32 (digest[0]);
digest[1] = byte_swap_32 (digest[1]);
digest[2] = byte_swap_32 (digest[2]);
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++;
// prefer sha1 due to speed
u32 digest_tmp[3];
digest_tmp[0] = byte_swap_32 (digest[0]);
digest_tmp[1] = byte_swap_32 (digest[1]);
digest_tmp[2] = byte_swap_32 (digest[2]);
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;
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;
}

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#!/usr/bin/env perl
##
## Author......: See docs/credits.txt
## License.....: MIT
##
use strict;
use warnings;
use Digest::MD5 qw (md5 md5_hex);
use Digest::SHA qw (sha1 sha1_hex);
use Digest::HMAC qw (hmac hmac_hex);
sub module_constraints { [[1, 256], [24, 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);
my $mode = shift // int(rand(1)) + 1;
# make even if needed
if (length($salt) %2 == 1)
{
$salt = $salt . "8";
}
my $string1 = $word x 1048576;
$string1 = substr ($string1, 0, 1048576);
my $digest1 = '';
if ($mode eq 2)
{
$digest1 = sha1_hex ($string1);
}
elsif ($mode eq 1)
{
$digest1 = md5_hex ($string1);
}
my $buf = join '', $digest1, $engineID, $digest1;
my $digest = '';
if ($mode eq 2)
{
my $digest2 = sha1(pack("H*", $buf));
$digest = hmac_hex (pack("H*", $salt), $digest2, \&sha1);
}
elsif ($mode eq 1)
{
my $digest2 = md5(pack("H*", $buf));
$digest = hmac_hex (pack("H*", $salt), $digest2, \&md5);
}
$digest = substr ($digest, 0, 24);
my $hash = sprintf ("\$SNMPv3\$0\$%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$0$';
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);
# gen md5 & sha1 hashes
my $new_hash_md5 = module_generate_hash ($word_packed, $salt, $pkt_num, $engineID, 1);
my $new_hash_sha1 = module_generate_hash ($word_packed, $salt, $pkt_num, $engineID, 2);
# parse digests
my (undef, undef, undef, undef, undef, undef, $digest_md5) = split '\$', $new_hash_md5;
my (undef, undef, undef, undef, undef, undef, $digest_sha1) = split '\$', $new_hash_sha1;
if ($digest eq $digest_md5)
{
return ($new_hash_md5, $word);
}
else
{
return ($new_hash_sha1, $word);
}
}
1;