CVE-2017-18439 : Exploit Details and Defense Strategies
Learn about CVE-2017-18439, a vulnerability in cPanel versions prior to 64.0.21 allowing demo accounts to execute code via ImageManager_dimensions API call. Find mitigation steps and prevention measures.
Prior to version 64.0.21, cPanel allows demo accounts to execute code through an API call to ImageManager_dimensions (SEC-243).
Understanding CVE-2017-18439
cPanel before version 64.0.21 enables demo accounts to execute code via an ImageManager_dimensions API call (SEC-243).
What is CVE-2017-18439?
cPanel versions prior to 64.0.21 have a vulnerability that permits demo accounts to run code by utilizing an API call to ImageManager_dimensions (SEC-243).
The Impact of CVE-2017-18439
This vulnerability allows unauthorized execution of code by demo accounts, potentially leading to security breaches and unauthorized access.
Technical Details of CVE-2017-18439
Vulnerability Description
The issue in cPanel before version 64.0.21 allows demo accounts to execute code through the ImageManager_dimensions API call (SEC-243).
Affected Systems and Versions
- Affected Version: Prior to 64.0.21
Exploitation Mechanism
The vulnerability is exploited by making an API call to ImageManager_dimensions, enabling demo accounts to execute code.
Mitigation and Prevention
Immediate Steps to Take
- Upgrade cPanel to version 64.0.21 or newer to mitigate the vulnerability.
- Monitor and restrict demo accounts' capabilities to prevent unauthorized code execution.
Long-Term Security Practices
- Regularly update cPanel to the latest versions to patch security vulnerabilities.
- Implement least privilege access controls to limit the capabilities of demo accounts.
Patching and Updates
Ensure timely installation of security patches and updates to protect against known vulnerabilities.