FlashChat F_CMS Parameter Multiple Remote File Include Vulnerabilities

Bugtraq ID:	24190
Class:	Input Validation Error
CVE:
Remote:	Yes
Local:	No
Published:	May 28 2007 12:00AM
Updated:	May 30 2007 12:03AM
Credit:	Hasadya Raed is credited with discovering these vulnerabilities.
Vulnerable:	TUFaT FlashChat 4.7.9
Not Vulnerable:

FlashChat F_CMS Parameter Multiple Remote File Include Vulnerabilities

FlashChat is prone to multiple remote file-include vulnerabilities because it fails to properly sanitize user-supplied input to the application.

An attacker may leverage these issues to execute an arbitrary remote file containing malicious script code in the context of the webserver process. This may allow the attacker to compromise the application and the underlying system. Other attacks are also possible.

This issue affects FlashChat 4.7.9; other versions may also be vulnerable.

Further reports suggest that the vulnerable parameter is defined with static content. This BID will be updated pending further investigation.

FlashChat F_CMS Parameter Multiple Remote File Include Vulnerabilities

Attackers can use a browser to exploit these issues.

The following proof-of-concept URIs are available:

http://www.example.com/chat/incclasses/connection.php?f_cms=[Shell-Attack]
http://www.example.com/chat/inc/common.php?f_cms=[Shell-Attack]

FlashChat F_CMS Parameter Multiple Remote File Include Vulnerabilities

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

FlashChat F_CMS Parameter Multiple Remote File Include Vulnerabilities

References:

• FlashChat Homepage (TUFat)
  
• Re: RFI In Script FlashChat_v479 ([email protected])
  
• RFI In Script FlashChat_v479 (Hasadya Raed)