TUCoPS :: HP Unsorted W :: b06-3701.htm

TUCoPS :: HP Unsorted W :: b06-3701.htm
Webscarab <= 20060621-0003 cross site scripting

WebScarab <= 20060621-0003 cross site scripting WebScarab <= 20060621-0003 cross site scripting


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1



SA0012

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+++++          WebScarab Cross Site Scripting           +++++
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


PUBLISHED ON
  Jul 18, 2006


PUBLISHED AT
http://moritz-naumann.com/adv/0012/webscarabxss/0012.txt 
http://moritz-naumann.com/adv/0012/webscarabxss/0012.txt.gpg 


PUBLISHED BY
  Moritz Naumann IT Consulting & Services
  Hamburg, Germany
http://moritz-naumann.com/ 

  SECURITY at MORITZ hyphon NAUMANN d0t COM
GPG key: http://moritz-naumann.com/keys/0x277F060C.asc 


AFFECTED APPLICATION OR SERVICE
  WebScarab
http://www.owasp.org/index.php/OWASP_WebScarab_Project 
http://sourceforge.net/projects/owasp/ 

  WebScarab is a Free Software for manual and semi-automatic
  web application penetration testing. It is developed in
  Java by Rogan Dawes as part of the Open Web Application
  Security Project (OWASP).


AFFECTED VERSIONS
  Version 20060621-0003 and below


ISSUES
  WebScarab is subject to a client side script code injection
  vulnerability which may allows for running cross site
  scripting attacks against web clients connecting through it.

  +++++ 1. Cross Site Scripting vulnerability in error
           messages

  By accessing the following URI using a web browser which is
  prone to this issue and configured to proxy through a
  vulnerable version of WebScarab, a non-persitent web script
  injection can be achieved:

http://arbitrary.domain/

This allows for disclosure of sensitive data stored in the security context of any arbitrary domain which the web browser has previously accessed but WebScarab is not able to access by the time the attack takes place (due to invalid upstream proxy setting on WebScarab, different results of DNS queries, limited connectivity or other reasons). Ms Internet Explorer 6 SP2 and Konqueror 3.5.3 are known to be prone to this issue. This problem is caused by insufficient santitation of user supplied input before it is returned to the client as part of an error message. BACKGROUND Cross Site Scripting (XSS): Cross Site Scripting, also known as XSS or CSS, describes the injection of malicious content into output produced by a web application. A common attack vector is the inclusion of arbitrary client side script code into the applications' output. Failure to completely sanitize user input from malicious content can cause a web application to be vulnerable to Cross Site Scripting. http://en.wikipedia.org/wiki/XSS http://www.cgisecurity.net/articles/xss-faq.shtml WORKAROUNDS Client: Disable Javascript. Server: None known. SOLUTIONS Rogan Dawes has released version 20060718-1904 today. This version fixes this issue. The updated packages is available at http://sourceforge.net/project/showfiles.php?group_id=64424&package_id=61823 TIMELINE Jul 18, 2006: Discovery, code maintainer notification Jul 18, 2006: Code maintainer provides fix Jul 18, 2006: Public advisory REFERENCES N/A ADDITIONAL CREDIT N/A LICENSE Creative Commons Attribution-ShareAlike License Germany http://creativecommons.org/licenses/by-sa/2.0/de/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (GNU/Linux) iD8DBQFEvVpon6GkvSd/BgwRArImAJ4wq5+KO9B8Lt/QT7gaCc+zDhAH0QCfe0pY 8lOADqs+qmKzqw0cgeb3HWU=32H+ -----END PGP SIGNATURE-----