CVE-2018-18645 : What You Need to Know
Learn about CVE-2018-18645, a vulnerability in GitLab Community and Enterprise Edition before specific versions, allowing information exposure via email unsubscribe links. Find mitigation steps and preventive measures.
A vulnerability was found in GitLab Community and Enterprise Edition, versions before 11.2.7, 11.3.x before 11.3.8, and 11.4.x before 11.4.3, exposing information through unsubscribe links in email responses.
Understanding CVE-2018-18645
This CVE identifies a security issue in GitLab Community and Enterprise Edition versions prior to specific releases.
What is CVE-2018-18645?
CVE-2018-18645 is a vulnerability in GitLab software that allows for information exposure via unsubscribe links in email replies.
The Impact of CVE-2018-18645
The vulnerability could potentially lead to unauthorized access to sensitive information contained in email responses.
Technical Details of CVE-2018-18645
This section provides technical insights into the vulnerability.
Vulnerability Description
An issue in GitLab Community and Enterprise Edition before certain versions allows for information exposure through email unsubscribe links.
Affected Systems and Versions
- GitLab Community and Enterprise Edition before 11.2.7
- GitLab Community and Enterprise Edition 11.3.x before 11.3.8
- GitLab Community and Enterprise Edition 11.4.x before 11.4.3
Exploitation Mechanism
The vulnerability is exploited through unsubscribe links in email responses, potentially leading to unauthorized information exposure.
Mitigation and Prevention
Protecting systems from CVE-2018-18645 is crucial for maintaining security.
Immediate Steps to Take
- Update GitLab to versions 11.2.7, 11.3.8, or 11.4.3 or later to mitigate the vulnerability.
- Educate users about the risks associated with clicking on email unsubscribe links.
Long-Term Security Practices
- Regularly update software to the latest versions to ensure security patches are applied.
- Implement email security best practices to prevent information exposure through email responses.
- Conduct security training for employees to raise awareness about email security risks.
- Monitor email communications for any suspicious activity.
Patching and Updates
- GitLab released versions 11.2.7, 11.3.8, and 11.4.3 to address the vulnerability. Ensure timely installation of these updates to secure systems.