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cPanel - Content Manipulation Vulnerability (R911-0043)




Posted by Steven, 07-18-2013, 10:27 PM
Product Description: cPanel is an easy-to-use control panel that gives web hosts and the website owners they serve, the ability to quickly and easily manage their servers and websites. Web Host Manager (WHM) is a part of the cPanel software, often used by resellers and system administrators. Vulnerability Description: There is a flaw within the Purchase and Install an SSL Certificate (TrustWave) feature that allows an attacker to overwrite any file on the server, including root owned files, which could ultimately lead to a server being rendered inoperable. Proof of Concept: Due to the nature of this security flaw, we will not be posting a Proof of Concept until a much later date. Impact: We have deemed this vulnerability to be rated as HIGH due to the fact that any file can be overwritten. Vulnerable Version: This vulnerability was tested against cPanel 11.38.1.5 and is believed to exist in all versions prior to the fixed builds below. Fixed Version: This vulnerability was patched in cPanel 11.39.0.5, 11.38.1.13, 11.36.1.15, 11.34.1.25. Vendor Contact Timeline: 2013-06-27: Vendor contacted via email. 2013-06-27: Vendor confirms vulnerability. 2013-07-15: Vendor issues updates to all builds. 2013-07-18: Rack911 issues security advisory.



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