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Installation Path Disclosure Weakness in Pluck CMS

Advisory ID:HTB22798
Product:Pluck
Vendor:Pluck CMS
Vulnerable Versions:4.6.4 and probably prior
Tested Version:4.6.4
Advisory Publication:January 18, 2011 [without technical details]
Vendor Notification:January 18, 2011
Public Disclosure:February 1, 2011
Vulnerability Type:Information Exposure Through Externally-generated Error Message [CWE-211]
Risk Level:Medium
CVSSv2 Base Score:5.0 (AV:N/AC:L/Au:N/C:P/I:N/A:N)
Solution Status:Fixed by Vendor
Discovered and Provided:High-Tech Bridge Security Research Lab
 

Advisory Details:

High-Tech Bridge SA Security Research Lab has discovered a weakness in Pluck CMS which could be exploited to gain access to potentially sensitive information.

1) Installation path disclosure weakness in Pluck CMS
The weakness exists due to application reveals the full path to installation directory in an error message. A remote attacker can directly access the "/index.php" and "/data/themes/default/theme.php" scripts and gain knowledge of the web root directory and other potentially sensitive information. Successful exploitation requires that php_display_errors variable is on.
Exploitation examples:
http://[host]/index.php?file[]=1
http://[host]/data/themes/default/theme.ph p

How to Detect Information Exposure Through Externally-generated Error Message Vulnerabilities
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Solution:
Upgrade to the most recent version
More info available: http://www.pluck-cms.org/?file=about/release-notes


References:
[1] High-Tech Bridge Advisory HTB22798 - https://www.immuniweb.com/advisory/HTB22798 - Installation Path Disclosure Weakness in Pluck CMS
[2] Pluck CMS - pluck-cms.org - Pluck is your small and simple content management system, written in php.
[3] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types.

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