CVE-2021-41749 : Exploit Details and Defense Strategies
Discover how the CVE-2021-41749 vulnerability in SEOmatic plugin up to 3.4.11 for Craft CMS 3 enables remote code execution. Learn mitigation steps and long-term security practices.
In the SEOmatic plugin up to 3.4.11 for Craft CMS 3, a vulnerability exists that could allow unauthenticated attackers to execute remote code through Server-Side Template Injection.
Understanding CVE-2021-41749
This CVE-2021-41749 vulnerability in the SEOmatic plugin affects Craft CMS 3, potentially leading to remote code execution by unauthorized users.
What is CVE-2021-41749?
- CVE-2021-41749 is a Server-Side Template Injection vulnerability in the SEOmatic plugin up to version 3.4.11 for Craft CMS 3.
The Impact of CVE-2021-41749
- Attackers can exploit this vulnerability to execute remote code without authentication, posing a critical security risk to affected systems.
Technical Details of CVE-2021-41749
This section delves into the specifics of the CVE-2021-41749 vulnerability.
Vulnerability Description
- The vulnerability allows unauthenticated attackers to conduct Server-Side Template Injection in the SEOmatic plugin, enabling the execution of remote code.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions Affected: up to 3.4.11
Exploitation Mechanism
- Unauthenticated attackers can exploit the vulnerability in the SEOmatic plugin to perform Server-Side Template Injection, facilitating remote code execution.
Mitigation and Prevention
Learn how to protect your systems from CVE-2021-41749.
Immediate Steps to Take
- Upgrade SEOmatic plugin to version 3.4.12 or higher to patch the vulnerability.
- Implement proper access controls to restrict unauthorized access to the affected systems.
- Monitor network traffic and system logs for any suspicious activities.
Long-Term Security Practices
- Regularly update and patch all software components to prevent future vulnerabilities.
- Conduct security audits and penetration testing to identify and address any security gaps proactively.
Patching and Updates
- Keep Craft CMS and all associated plugins, including SEOmatic, up to date with the latest security patches and fixes to protect against known vulnerabilities.