CVE-2021-20850 : What You Need to Know
Learn about CVE-2021-20850, a critical OS Command Injection vulnerability in PowerCMS XMLRPC API versions 5.19 and earlier. Find out the impact, affected systems, and mitigation steps.
PowerCMS XMLRPC API of PowerCMS versions 5.19 and earlier, 4.49 and earlier, 3.295 and earlier, and 2 Series (End-of-Life) is vulnerable to OS Command Injection, allowing remote attackers to execute arbitrary OS commands.
Understanding CVE-2021-20850
This CVE refers to a critical vulnerability in the PowerCMS XMLRPC API that can be exploited by attackers to execute unauthorized OS commands remotely.
What is CVE-2021-20850?
The vulnerability in PowerCMS XMLRPC API versions prior to 5.19 allows malicious actors to run arbitrary OS commands through unspecified vectors, posing a significant security risk.
The Impact of CVE-2021-20850
The exploit could lead to unauthorized access and control of the affected systems, potentially resulting in data breaches, system damage, and other malicious activities.
Technical Details of CVE-2021-20850
This section covers the specific technical aspects of the CVE.
Vulnerability Description
PowerCMS XMLRPC API versions 5.19 and earlier suffer from an OS Command Injection flaw, enabling attackers to execute commands through undocumented means.
Affected Systems and Versions
The vulnerability affects PowerCMS versions 5.19 and earlier, 4.49 and earlier, 3.295 and earlier, as well as the end-of-life 2 Series.
Exploitation Mechanism
Attackers exploit this vulnerability via undisclosed methods to inject and execute OS commands on vulnerable PowerCMS instances.
Mitigation and Prevention
Protect your systems from CVE-2021-20850 by following these security measures.
Immediate Steps to Take
Update PowerCMS to the latest secure version, apply patches, and restrict access to the XMLRPC API to trusted entities only.
Long-Term Security Practices
Regularly monitor and audit system activity, implement strong authentication mechanisms, and conduct security assessments to prevent similar vulnerabilities.
Patching and Updates
Stay informed about security advisories from Alfasado Inc. and promptly apply patches and updates to mitigate the risk of OS Command Injection in PowerCMS XMLRPC API.