CVE-2021-22215 : What You Need to Know
Learn about CVE-2021-22215, an information disclosure flaw in GitLab EE versions 13.11 and later allowing project owners to expose on-call rotation details across projects. Find out the impact, affected systems, and mitigation steps.
An information disclosure vulnerability in GitLab EE versions 13.11 and later allowed a project owner to leak information about the members' on-call rotations in other projects.
Understanding CVE-2021-22215
This CVE relates to an information disclosure vulnerability in GitLab EE versions 13.11 and later, enabling a project owner to expose details about members' on-call rotations.
What is CVE-2021-22215?
The vulnerability within GitLab EE versions 13.11 and above empowers project owners to unintentionally reveal sensitive on-call rotation information in different projects.
The Impact of CVE-2021-22215
With a CVSS base score of 7.5, this high-severity vulnerability poses a significant threat to confidentiality by allowing unauthorized access to on-call rotation details.
Technical Details of CVE-2021-22215
This section delves into the technical specifics of the CVE, outlining the vulnerability, affected systems, and how it can be exploited.
Vulnerability Description
The issue in GitLab EE versions 13.11 and later exposes on-call rotation data between projects due to inadequate access controls, potentially leading to privacy breaches.
Affected Systems and Versions
GitLab versions >=13.11 and <13.11.5, as well as versions >=13.12 and <13.12.2, are impacted by this vulnerability.
Exploitation Mechanism
By leveraging this vulnerability, a malicious actor could exploit the lack of proper access restrictions to access on-call rotation information across projects.
Mitigation and Prevention
To safeguard systems against CVE-2021-22215, immediate actions and long-term security measures are critical.
Immediate Steps to Take
GitLab users are advised to apply patches promptly, restrict access to sensitive information, and monitor for unauthorized disclosures.
Long-Term Security Practices
Regular security audits, access control reviews, and employee training on data protection best practices can help prevent similar incidents in the future.
Patching and Updates
It is imperative to stay up to date with GitLab releases and promptly apply security patches to address known vulnerabilities and enhance system security.