CVE-2020-15434 : Exploit Details and Defense Strategies
Learn about CVE-2020-15434, a critical vulnerability in CentOS Web Panel allowing remote code execution without authentication. Understand the impact, affected systems, and mitigation steps.
A vulnerability in CentOS Web Panel allows remote attackers to execute arbitrary code without authentication, posing a critical threat.
Understanding CVE-2020-15434
This CVE identifies a critical vulnerability in CentOS Web Panel that enables remote code execution without the need for authentication.
What is CVE-2020-15434?
This vulnerability in CentOS Web Panel's cwp-e17.0.9.8.923 version allows attackers to execute arbitrary code by exploiting a flaw in ajax_php_pecl.php. The issue arises from inadequate validation of user-supplied input.
The Impact of CVE-2020-15434
The vulnerability has a CVSS base score of 9.8, indicating a critical severity level. Its impact includes high confidentiality, integrity, and availability risks, with low attack complexity and no privileges required.
Technical Details of CVE-2020-15434
This section delves into the technical aspects of the CVE.
Vulnerability Description
The flaw in ajax_php_pecl.php allows attackers to execute system calls with user-controlled input, leading to arbitrary code execution in the root context.
Affected Systems and Versions
- Product: CentOS Web Panel
- Vendor: CentOS Web Panel
- Version: cwp-e17.0.9.8.923
Exploitation Mechanism
Attackers exploit the vulnerability by manipulating the canal parameter to inject and execute malicious code, compromising the system's security.
Mitigation and Prevention
Protecting systems from CVE-2020-15434 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches promptly to mitigate the vulnerability.
- Monitor and restrict network access to vulnerable systems.
- Implement network segmentation to contain potential attacks.
Long-Term Security Practices
- Regularly update and patch software to address security vulnerabilities.
- Conduct security assessments and penetration testing to identify and remediate weaknesses.
Patching and Updates
- Check for and apply patches released by CentOS Web Panel to address the vulnerability.