CVE-2017-18453 : Security Advisory and Response
Discover the security vulnerability in cPanel versions before 64.0.21 where supplemental groups are lost during account renaming. Learn about the impact, affected systems, exploitation, and mitigation steps.
This CVE-2017-18453 article provides insights into a security issue in cPanel versions prior to 64.0.21 where supplemental groups are not retained during account renaming.
Understanding CVE-2017-18453
This section delves into the details of the CVE-2017-18453 vulnerability.
What is CVE-2017-18453?
cPanel versions before 64.0.21 fail to maintain supplemental groups when accounts are renamed, leading to a security vulnerability (SEC-260).
The Impact of CVE-2017-18453
The vulnerability can result in a loss of supplemental group information during account renaming, potentially affecting user permissions and access control.
Technical Details of CVE-2017-18453
Exploring the technical aspects of the CVE-2017-18453 vulnerability.
Vulnerability Description
The issue in cPanel versions earlier than 64.0.21 causes the loss of supplemental group information when renaming accounts.
Affected Systems and Versions
- Product: cPanel
- Vendor: Not applicable
- Versions: All versions before 64.0.21
Exploitation Mechanism
The vulnerability can be exploited by malicious users to manipulate group permissions and potentially gain unauthorized access.
Mitigation and Prevention
Guidelines to mitigate and prevent the CVE-2017-18453 vulnerability.
Immediate Steps to Take
- Upgrade cPanel to version 64.0.21 or later to address the issue.
- Regularly review and update user permissions and group settings.
Long-Term Security Practices
- Implement regular security audits to identify and address similar vulnerabilities.
- Educate users on best practices for managing accounts and permissions.
Patching and Updates
Ensure timely installation of patches and updates provided by cPanel to maintain system security.