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Insecure Library Loading
Highly critical

Piwik "unserialize()" PHP Code Execution

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Release Date:  2009-12-09    Last Update:  2009-12-28    Views:  4,023

Secunia Advisory SA37649

Where:

From remote

Impact:

System access

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


Stefan Esser has reported a vulnerability in Piwik, which can be exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to the core/Cookie.php script using "unserialize()" with user controlled input. This can be exploited to e.g. execute arbitrary PHP code via the "__wakeup()" or "__destruct()" methods of a serialized object passed via an HTTP cookie.

The vulnerability is reported in versions prior to 0.5.


Solution:
Update to version 0.5 or later.

Provided and/or discovered by:
Stefan Esser

Original Advisory:
Stefan Esser:
http://www.sektioneins.de/de/advisories/advisory-032009-piwik-cookie-unserialize-vulnerability/index.html

Piwik:
http://piwik.org/blog/2009/12/piwik-response-to-shocking-news-in-php-exploitation/

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Piwik "unserialize()" PHP Code Execution

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