CVE-2022-41942 : Vulnerability Insights and Analysis

Sourcegraph is a code intelligence platform that was found vulnerable to Command Injection via gitserver in versions prior to 4.1.0. This vulnerability could allow an attacker to execute commands inside the container by sending crafted requests to gitserver. Understanding the impact, technical details, and mitigation steps are crucial.

Understanding CVE-2022-41942

Sourcegraph faced a Command Injection vulnerability in its gitserver service, affecting all Sourcegraph deployments. The lack of input validation on the host parameter of the

/list-gitolite

endpoint enabled attackers to execute commands within the container.

What is CVE-2022-41942?

CVE-2022-41942 is a Command Injection vulnerability in Sourcegraph versions prior to 4.1.0, allowing attackers to execute commands within the gitserver container.

The Impact of CVE-2022-41942

Successful exploitation of this vulnerability requires the ability to send local requests to gitserver, potentially leading to unauthorized command execution within the container. The issue has a CVSS base score of 7.9, indicating a high severity level with significant confidentiality and integrity impacts.

Technical Details of CVE-2022-41942

The vulnerability stemmed from a lack of input validation on the host parameter of the

/list-gitolite

endpoint, present in all Sourcegraph deployments.

Vulnerability Description

The vulnerability in Sourcegraph versions prior to 4.1.0 allowed attackers to execute commands by sending crafted requests to the gitserver service.

Affected Systems and Versions

Sourcegraph versions below 4.1.0 are affected by this Command Injection vulnerability via the gitserver service.

Exploitation Mechanism

Attackers could exploit this issue by sending specially crafted requests to gitserver, enabling unauthorized command execution within the container.

Mitigation and Prevention

Addressing CVE-2022-41942 requires immediate action to secure Sourcegraph deployments and prevent potential exploitation.

Immediate Steps to Take

Users are advised to update Sourcegraph to version 4.1.0 or newer to mitigate the Command Injection vulnerability. It is crucial to apply the available patch promptly.

Long-Term Security Practices

Implement strong input validation mechanisms and conduct regular security assessments to identify and remediate vulnerabilities in code intelligence platforms like Sourcegraph.

Patching and Updates

Stay informed about security advisories and updates from Sourcegraph to promptly address any emerging vulnerabilities and secure your deployments.