CVE-2020-6833 : Security Advisory and Response

An issue was discovered in GitLab EE 11.3 and later. A GitLab Workhorse bypass could lead to package and file disclosure via request smuggling.

Understanding CVE-2020-6833

This CVE involves a vulnerability in GitLab EE versions 11.3 and above that could potentially allow for package and file disclosure through request smuggling.

What is CVE-2020-6833?

CVE-2020-6833 is a security vulnerability found in GitLab EE versions 11.3 and later, where a GitLab Workhorse bypass could be exploited to disclose packages and files via request smuggling.

The Impact of CVE-2020-6833

The vulnerability could lead to unauthorized access to sensitive packages and files, potentially compromising the confidentiality and integrity of data stored within GitLab EE instances.

Technical Details of CVE-2020-6833

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability in GitLab EE versions 11.3 and above allows for a GitLab Workhorse bypass, enabling malicious actors to disclose packages and files through request smuggling.

Affected Systems and Versions

Product: GitLab EE
Versions affected: 11.3 and later

Exploitation Mechanism

The vulnerability can be exploited by manipulating requests to GitLab Workhorse, tricking the system into disclosing sensitive packages and files.

Mitigation and Prevention

Protecting systems from CVE-2020-6833 is crucial to maintaining security.

Immediate Steps to Take

Update GitLab EE to the latest patched version to mitigate the vulnerability.
Monitor and review access logs for any suspicious activity.

Long-Term Security Practices

Regularly conduct security assessments and audits to identify and address vulnerabilities.
Educate users on secure coding practices and the importance of data protection.

Patching and Updates

Stay informed about security updates and patches released by GitLab and promptly apply them to the system to prevent exploitation of known vulnerabilities.