PR07-20: Webroot disclosure on Webbler CMS

Date Found: 14th June 2007

Successfully tested on: Webbler CMS version 3.1.3. Earlier versions are possibly affected as well.

Severity: Low

Note: The version number is usually included within 'meta' HTML tags and 'X-Powered-By'
HTTP response headers. i.e. -

<meta name="generator" content="webbler 3.1.3 - http://tincan.co.uk/webbler" />

X-Powered-By: webbler version 3.1.3

Description: Sites that are generated/managed through Webbler CMS disclose the webroot within HTML
comments. i.e.:

<!-- /var/webbler_cache/www.target-domain.com/13697/index.php--><!-- lid: -->

Consequences: A remote attacker could recover information with regards to the target site's directory
structure.

This kind of information can be useful for attackers in certain scenarios. i.e.: when
attempting to exploit file retrieval vulnerabilities.

Successfully tested on:

Server environment -

Webbler CMS 3.1.3
PHP 5.1.6
Apache web server (unknown version)

Client environment -

Microsoft Internet Explorer 7.0.5730.11

Author: Adrian Pastor [adrian.pastor [at] procheckup.com]. ProCheckUp thanks Tincan for fixing this vulnerability so promptly.

Fix: This issue has been fixed on version version 3.1.6.

References:

http://tincan.co.uk/webbler
http://tincan.co.uk/?lid=1975
http://www.procheckup.com/Vulner_2007.php

Legal:

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