Acuity CMS 2.6.x <= Cross Site Scripting

By YGN Ethical Hacker Group -
1. OVERVIEW

Acuity CMS 2.6.x (ASP-based) versions are vulnerable to Cross Site Scripting.


2. BACKGROUND

Acuity CMS is a powerful but simple, extremely easy to use, low
priced, easy to deploy content management system. It is a leader in
its price and feature class.


3. VULNERABILITY DESCRIPTION

"UserName" parameter is not properly sanitized upon submission to the
URL, /admin/login.asp , 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

Tested in version 2.6.2.


5. PROOF-OF-CONCEPT/EXPLOIT

http://localhost/admin/login.asp?UserName="><script>prompt(/xss/)</script>


6. SOLUTION

The Acunity CMS is no longer in active development.
It is recommended to user another CMS in active development and support.


7. VENDOR

The Collective
http://www.thecollective.com.au/


8. CREDIT

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


9. DISCLOSURE TIME-LINE

2012-04-17: vulnerability disclosed


10. REFERENCES

Original Advisory URL:
http://yehg.net/lab/pr0js/advisories/%5Bacuity_cms2.6.x_(asp)%5D_xss


#yehg [2012-04-17]

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