CVE-2020-15431 Explained : Impact and Mitigation
Learn about CVE-2020-15431, a critical vulnerability in CentOS Web Panel cwp-e17.0.9.8.923 allowing remote code execution without authentication. Find out the impact, affected systems, and mitigation steps.
This vulnerability allows remote attackers to execute arbitrary code on affected installations of CentOS Web Panel cwp-e17.0.9.8.923 without requiring authentication. The flaw exists within ajax_crons.php, enabling attackers to execute code in the context of root.
Understanding CVE-2020-15431
This CVE affects CentOS Web Panel version cwp-e17.0.9.8.923.
What is CVE-2020-15431?
CVE-2020-15431 is a critical vulnerability that permits remote attackers to run arbitrary code on CentOS Web Panel installations without needing authentication. The flaw lies in ajax_crons.php, where user input is not properly validated before executing system calls.
The Impact of CVE-2020-15431
The impact of this vulnerability is severe:
- CVSS Base Score: 9.8 (Critical)
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Technical Details of CVE-2020-15431
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability stems from improper validation of user-supplied input in ajax_crons.php, allowing attackers to execute system calls with root privileges.
Affected Systems and Versions
- Affected Product: CentOS Web Panel
- Affected Version: cwp-e17.0.9.8.923
Exploitation Mechanism
Attackers exploit the vulnerability by injecting malicious code via the user parameter in ajax_crons.php, enabling them to execute arbitrary commands as root.
Mitigation and Prevention
Protecting systems from CVE-2020-15431 requires immediate action and long-term security practices.
Immediate Steps to Take
- Apply security patches promptly
- Monitor system logs for suspicious activities
- Implement network segmentation to limit the attack surface
Long-Term Security Practices
- Conduct regular security audits and penetration testing
- Educate users on safe computing practices
- Keep software and systems up to date
- Employ intrusion detection and prevention systems
Patching and Updates
- Update CentOS Web Panel to a patched version
- Follow vendor recommendations for securing the system