PostNuke Multiple Remote Input Validation Vulnerabilities

BID:13706

Info

PostNuke Multiple Remote Input Validation Vulnerabilities

Bugtraq ID: 13706
Class: Input Validation Error
CVE:
Remote: Yes
Local: No
Published: May 21 2005 12:00AM
Updated: May 21 2005 12:00AM
Credit: Maksymilian Arciemowicz <[email protected]> is credited with the discovery of these vulnerabilities.
Vulnerable: PostNuke Development Team PostNuke Phoenix 0.760 RC3
PostNuke Development Team PostNuke Phoenix 0.760 RC2
PostNuke Development Team PostNuke Phoenix 0.750
Not Vulnerable: PostNuke Development Team PostNuke Phoenix 0.750 b

Discussion

PostNuke Multiple Remote Input Validation Vulnerabilities

PostNuke is prone to multiple input validation vulnerabilities. These issues are due to a failure in the application to properly sanitize user-supplied input.

The SQL injection vulnerability could permit remote attackers to pass malicious input to database queries, resulting in modification of query logic or other attacks.

Successful exploitation could result in a compromise of the application, disclosure or modification of data, or may permit an attacker to exploit vulnerabilities in the underlying database implementation.

PostNuke is also prone to multiple cross-site scripting vulnerabilities. An attacker may leverage these issues to have arbitrary script code executed in the browser of an unsuspecting user. This may facilitate the theft of cookie-based authentication credentials as well as other attacks.

Exploit / POC

PostNuke Multiple Remote Input Validation Vulnerabilities

No exploit is required, but proof of concept example URIs have been provided.

Example SQL injection URIs:
http://www.example.com/modules.php?op=modload&name='cXIb8O3&file=index
http://www.example.com/modules.php?op=modload&name=sp3x&file=index&module='cXIb8O3

Example cross-site scripting URIs:
http://www.example.com/modules/RSS/pnincludes/scripts/magpie_slashbox.php?rss_url=[XSS]
http://www.example.com/modules/RSS/pnincludes/scripts/magpie_simple.php?url=">[XSS]
http://www.example.com/modules/RSS/pnincludes/scripts/magpie_debug.php?url=%22%3E[XSS]
http://www.example.com/modules/Xanthia/pnhtml/demo.php?skin=%3C/script%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E
http://www.example.com/modules/Xanthia/pnhtml/demo.php?paletteid=%3C/script%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E

Solution / Fix

PostNuke Multiple Remote Input Validation Vulnerabilities

Solution:
The vendor has released advisory PNSA 2005-2, along with fixes to address these, and other issues. Please see the referenced advisory for further information.


PostNuke Development Team PostNuke Phoenix 0.750

PostNuke Development Team PostNuke Phoenix 0.760 RC2

PostNuke Development Team PostNuke Phoenix 0.760 RC3

References

PostNuke Multiple Remote Input Validation Vulnerabilities

References:

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