CVE-2021-44967 : Vulnerability Insights and Analysis
Learn about the CVE-2021-44967 Remote Code Execution (RCE) vulnerability in LimeSurvey 5.2.4, its impact, affected systems, exploitation method, and mitigation steps.
A Remote Code Execution (RCE) vulnerability exists in LimeSurvey 5.2.4, allowing a remote malicious user to upload arbitrary PHP code files.
Understanding CVE-2021-44967
What is CVE-2021-44967?
The CVE-2021-44967 vulnerability is an RCE issue present in LimeSurvey 5.2.4 through the upload and install plugins function.
The Impact of CVE-2021-44967
This vulnerability enables remote attackers to upload potentially harmful PHP code onto the affected system, leading to unauthorized code execution and potential system compromise.
Technical Details of CVE-2021-44967
Vulnerability Description
The RCE vulnerability in LimeSurvey 5.2.4 allows remote attackers to upload and execute arbitrary PHP code files, posing a serious security risk.
Affected Systems and Versions
- Product: LimeSurvey
- Version: 5.2.4
Exploitation Mechanism
Attackers exploit the upload and install plugins function in LimeSurvey 5.2.4 to upload malicious PHP code, subsequently executing it on the target system.
Mitigation and Prevention
Immediate Steps to Take
- Disable the plugin upload functionality in LimeSurvey to prevent unauthorized code execution.
- Implement strict file upload validation to block potentially harmful PHP files.
Long-Term Security Practices
- Regularly update LimeSurvey to the latest version to patch known vulnerabilities.
- Conduct security assessments and code reviews to identify and mitigate any security weaknesses.
Patching and Updates
Apply official patches and security updates provided by LimeSurvey to address the CVE-2021-44967 vulnerability and enhance system security.