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Simple PHP Blog comment_delete_cgi.php Arbitrary File Deletion Advisory Available in Danish  Advisory Available in German 

Secunia Advisory: SA16616  
Release Date: 2005-08-30
Last Update: 2007-09-26

Critical:
Moderately critical
Impact: Manipulation of data
Where: From remote
Solution Status: Vendor Patch

Software:Simple PHP Blog 0.x

CVE reference:CVE-2005-2787 (Secunia mirror)

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Description:
Kenneth F. Belva has discovered a vulnerability in Simple PHP Blog, which can be exploited by malicious people to manipulate sensitive information.

Input passed to the "comment" parameter in "comment_delete_cgi.php" isn't properly verified before being used to delete comments. This can be exploited to delete arbitrary files.

This can further be exploited to change the administrator's username and password by deleting the "config/password.txt" password file and accessing the "install03_cgi.php" installation script.

The vulnerability is confirmed in version 0.4.0. Other versions may also be affected.

Solution:
Update to version 0.5.1.

Provided and/or discovered by:
Kenneth F. Belva

Changelog:
2005-09-07: Added CVE reference.
2007-09-26: Updated "Solution" section.



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

7 Related Secunia Security Advisories

1. Simple PHP Blog Multiple Vulnerabilities
2. Simple PHP Blog Cross-Site Request Forgery
3. Simple PHP Blog Cross-Site Scripting and File Upload Vulnerabilities
4. Simple PHP Blog "blog_language" Local File Inclusion
5. Simple PHP Blog Cross-Site Scripting Vulnerabilities
6. Simple PHP Blog Image File Upload Vulnerability
7. Simple PHP Blog Exposure of User Credentials


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