CVE-2020-15623 : Security Advisory and Response

This vulnerability allows remote attackers to write arbitrary files on affected installations of CentOS Web Panel cwp-e17.0.9.8.923 without requiring authentication. The flaw exists within ajax_mod_security.php, enabling attackers to execute code as root.

Understanding CVE-2020-15623

This CVE identifies a critical vulnerability in CentOS Web Panel.

What is CVE-2020-15623?

The vulnerability in CentOS Web Panel cwp-e17.0.9.8.923 allows remote attackers to write arbitrary files without authentication, potentially leading to code execution as root.

The Impact of CVE-2020-15623

The vulnerability has a CVSS base score of 9.8 (Critical) with high impacts on confidentiality, integrity, and availability. Attackers can exploit this flaw remotely with low complexity.

Technical Details of CVE-2020-15623

This section provides more technical insights into the CVE.

Vulnerability Description

The flaw in ajax_mod_security.php allows attackers to write arbitrary files due to improper validation of user-supplied paths, leading to code execution as root.

Affected Systems and Versions

Product: CentOS Web Panel
Version: cwp-e17.0.9.8.923

Exploitation Mechanism

Attackers exploit the vulnerability by manipulating the 'archivo' parameter to write files without proper validation, enabling code execution as root.

Mitigation and Prevention

Protect your systems from CVE-2020-15623 with the following steps:

Immediate Steps to Take

Apply security patches promptly
Monitor and restrict network access to vulnerable components
Implement strong firewall rules

Long-Term Security Practices

Regularly update and patch software
Conduct security audits and penetration testing
Educate users on safe computing practices

Patching and Updates

Ensure timely installation of security patches and updates to mitigate the risk of exploitation.