Waraxe IT Security Portal  
  Login or Register
::  Home  ::  Search  ::  Your Account  ::  Forums  ::   Waraxe Advisories  ::  Tools  ::
April 18, 2014
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: Lokesh
New Today: 0
New Yesterday: 0
Overall: 8982

People Online:
Visitors: 229
Members: 0
Total: 229
milw0rm
·[web applications] - RunCMS 1.6.1 - (pm.class.php) Multiple SQL Injection Vulnerabilities
·[web applications] - csUpload Script Site - Authentication Bypass Vulnerability
·[web applications] - QuickCms 5.4 - Multiple Vulnerabilites
·[dos / poc] - Heartbleed User Session Extraction Exploit
·[dos / poc] - Asterisk 1.x - BYE Message Remote Denial of Service Vulnerability
·[remote exploits] - Vtiger Install Unauthenticated Remote Command Execution Exploit
·[remote exploits] - MS14-017 Microsoft Word RTF Object Confusion Exploit
·[remote exploits] - BlackBerry Z 10 Buffer Overflow Vulnerability
·[remote exploits] - Sun Java Runtime Environment 1.6 - WebStart JNLP File Stack Buffer Overflow
·[remote exploits] - GSC Client 1.00 2067 - Privilege Escalation Vulnerability

read more...
PacketStorm News
·FreeBSD Security Advisory - OpenSSL Issues
·FreeBSD Security Advisory - NFS Server Deadlock
·Cisco Security Advisory 20140409-asa
·Cisco Security Advisory 20140409-heartbleed
·Mandriva Linux Security Advisory 2014-067
·Slackware Security Advisory - openssl Updates
·Red Hat Security Advisory 2014-0380-01
·Red Hat Security Advisory 2014-0389-01
·Red Hat Security Advisory 2014-0383-01
·Red Hat Security Advisory 2014-0382-01

read more...
[waraxe-2005-SA#039] - Critical Sql Injection in Sgallery module for PhpNuke






Author: Janek Vind "waraxe"
Date: 12. January 2005
Location: Estonia, Tartu
Web: http://www.waraxe.us/advisory-39.html


Affected software description:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Module's Name: SGallery
Module's Version: 1.01
Module's Description: Simple JPG image gallery
License: GNU/GPL
Author's Name: Sergey Kiselev
Author's Email: ser@acmetelecom.ru

Homepage: http://www.ser.acmetelecom.ru


Vulnerabilities:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Let's look at source code from imageview.php:


----------------[ original code ]---------------

require_once("$DOCUMENT_ROOT/config.php");
require_once("$DOCUMENT_ROOT/includes/sql_layer.php");

$dbi = sql_connect ($dbhost,$dbuname,$dbpass,$dbname);

if ($idalbum) {
$result = sql_query("select picture from ".$prefix."_SGalbums where idalbum=".$idalbum,$dbi);
} elseif ($idimage) {
$result = sql_query("select picture from ".$prefix."_SGimages where idimage=".$idimage,$dbi);
}

list($echo) = sql_fetch_row($result, $dbi);
sql_free_result($result);

sql_logout ($dbi);

header ("Content-Type: image/jpeg");
echo $echo;

----------------[ /original code ]---------------

Now let's analyze the weak points.


A - Full Path Disclosure
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

If "$idalbum" and "$idimage" are both unset, then because of the open "if/elseif" construction
there variable "$result" will be unset or can be poisoned through GET/POST/COOKIE.
And next call of the "sql_fetch_row()" will trigger generic php error messages, leading to
full path disclosure. Path disclosure is considered as low level security threat, but anyway it's
useful for further malicious actions.


B - Potential arbitrary file inclusion:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This kind of code construction as

require_once("$DOCUMENT_ROOT/config.php");
require_once("$DOCUMENT_ROOT/includes/sql_layer.php");

is not very secure. Depending of the webserver software vendor,version number and configuration
settings it can lead to arbitrary file inclusion and possible remote file inclusion.


C - Critical sql injection bug in "imageview.php":
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Looking at source code, presented above, we can see unsecure sql queries directed to the database.
To be excact, user submitted variables "$idalbum" and/or "$idimage" are used in sql "SELECT" clause
without escaping with single quotes. This is clearly sql injection bug. Further exploitation will
depend on database software and version. In case of the mysql version 4.x with UNION functionality enabled,
arbitrary data can be retrieved from database, inluding admin(s) authentication credentials.
Traditionally, there is the proof of concept:


----------------[ real life exploit ]---------------

http://localhost/nuke75/modules/Sgallery/imageview.php?idimage=-99/**/UNION/
**/SELECT/**/pwd/**/FROM/**/nuke_authors/**/WHERE/**/radminsuper=1

----------------[/real life exploit ]---------------

Best browser to test this POC is MSIE - it will show plaintext admin password's md5 hash as needed.
Firefox and other browsers will mostly rendering out "broken picture" because of the
"Content-Type: image/jpeg" header. But anyway, sql injection exists, can be exploited and must be
fixed by vendor as soon as possible.


How to fix:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Developer first contacted: 16. November 2004
No response from developer after multiple sent emails.
Downloadable version of the Sgalley is still unpatched.

How to fix this security hole - http://www.waraxe.us/forums.html


Additional resources:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Base64 encoder and decoder - http://base64-encoder-online.waraxe.us/
SiteMapper - free php script for phpNuke powered websites - http://sitemapper.waraxe.us/
It's easy to install solution for making phpNuke more Google friendly!


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

Greets to icenix, Raido Kerna, g0df4th3r and slimjim100!
Tervitused - Heintz!

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

come2waraxe@yahoo.com
Janek Vind "waraxe"

Homepage: http://www.waraxe.us/

---------------------------------- [ EOF ] ------------------------------------









Copyright © by Waraxe IT Security Portal All Right Reserved.

Published on: 2005-01-12 (11790 reads)

[ Go Back ]
Top members by posts
waraxe  waraxe - 2407
vince213333  vince213333 - 736
vn5socks  vn5socks - 706
pexli  pexli - 665
Mullog  Mullog - 539
demon  demon - 485
shai-tan  shai-tan - 477
LINUX  LINUX - 404
Cyko  Cyko - 374
tsabitah  tsabitah - 328
SecurityFocus
·Vuln: Sophos Web Appliance Privilege Escalation and Remote Code Execution Vulnerabilities
·Vuln: qEngine Database Backup Information Disclosure Vulnerability
·Vuln: LibYAML 'yaml_parser_scan_uri_esc apes()' Function Remote Heap Based Buffer Overflow Vulnerability
·Vuln: Python 'readline()' Function Denial of Service Vulnerability
·Bugtraq: iVault Private P&V 1.1 iOS - Path Traversal Vulnerability
·Bugtraq: BlueMe Bluetooth v5.0 iOS - Code Execution Vulnerability
·Bugtraq: AppFish Offline Coder v2.2 iOS - Persistent Software Vulnerability
·Bugtraq: [SECURITY] [DSA 2899-1] openafs security update
·More rss feeds from SecurityFocus

read more...
alexa



Movie 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: 0.046 Seconds