Attacker Value
(1 user assessed)
Very High
(1 user assessed)
User Interaction
Privileges Required
Attack Vector

CVE-2020-15612 — CentOS Web Panel Authentication Bypass/RCE

Disclosure Date: July 28, 2020
Add any MITRE ATT&CK Tactics to the list below that apply to this CVE.


This vulnerability allows remote attackers to execute arbitrary code on affected installations of CentOS Web Panel cwp-e17. Authentication is not required to exploit this vulnerability. The specific flaw exists within ajax_ftp_manager.php. When parsing the userLogin parameter, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-9737.

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Technical Analysis

This is a web hosting control panel for CentOS, sort of like cPanel. RCE in one of these could mean compromised user websites and data. Web hosting used to be super popular in the 2000s, but it has largely been supplanted by cheap virtualization and “cloud” platforms, IMHO.

I make some assumptions about this vuln, since the code is ionCube-protected, so there’s no source, only PHP bytecode. Setup is also a nightmare, and there are no provisions for tracking or rolling back changes. Patching can get sketchy.

I did not analyze the vuln, as attempting to install an older version of the software consequently broke it, and deobfuscating ionCube takes a significant amount of time.

General Information


  • CentOS Web Panel


  • CentOS Web Panel

Additional Info

Technical Analysis