FlatNuke USR Parameter Cross-Site Scripting Vulnerability

Bugtraq ID:	14704
Class:	Input Validation Error
CVE:
Remote:	Yes
Local:	No
Published:	Aug 31 2005 12:00AM
Updated:	Aug 31 2005 12:00AM
Credit:	rgod is credited with the discovery of this vulnerability.
Vulnerable:	FlatNuke FlatNuke 2.5.6
Not Vulnerable:

FlatNuke USR Parameter Cross-Site Scripting Vulnerability

FlatNuke is prone to a cross-site scripting vulnerability. This issue is due to a failure in the application to properly sanitize user-supplied input.

An attacker may leverage this issue to have arbitrary script code executed in the browser of an unsuspecting user in the context of the affected site. This may facilitate the theft of cookie-based authentication credentials as well as other attacks.

FlatNuke USR Parameter Cross-Site Scripting Vulnerability

No exploit is required.

The following proof of concept URI is available:
http://www.example.com/forum/index.php?op=vis_reg&usr="><script>alert('LOL%20%20')</script><!--

FlatNuke USR Parameter Cross-Site Scripting Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

FlatNuke USR Parameter Cross-Site Scripting Vulnerability

References:

• Dell KACE K1000 Systems Management Appliance Homepage (DELL)
  
• Flatnuke 2.5.6 Underlying system information disclosure / Administrative & users ([email protected])