CVE-2022-23642 : Vulnerability Insights and Analysis

Sourcegraph prior to version 3.37 is vulnerable to remote code execution in the

gitserver

service due to improper restriction on calling

git config

. This vulnerability allows an attacker to set the git

core.sshCommand

option, leading to potential exploitation. Learn more about the impact, technical details, and mitigation strategies related to CVE-2022-23642.

Understanding CVE-2022-23642

Code Injection vulnerability in Sourcegraph

What is CVE-2022-23642?

Sourcegraph, a code search and navigation engine, exposes a flaw in versions before 3.37 that allows remote code execution through the

gitserver

service. Attackers can manipulate git's

core.sshCommand

option to execute arbitrary commands.

The Impact of CVE-2022-23642

The vulnerability poses a high severity risk with a CVSS base score of 8.8. It can result in unauthorized access to confidential data, compromise of data integrity, and service unavailability.

Technical Details of CVE-2022-23642

Insights into the vulnerability

Vulnerability Description

The issue arises from the improper control of the

core.sshCommand

option in the

gitserver

service, enabling attackers to execute malicious commands.

Affected Systems and Versions

Sourcegraph versions prior to 3.37 are impacted by this vulnerability, making them susceptible to remote code execution.

Exploitation Mechanism

By manipulating the

core.sshCommand

setting, attackers can run unauthorized commands on systems running the vulnerable Sourcegraph versions.

Mitigation and Prevention

Effective strategies to address CVE-2022-23642

Immediate Steps to Take

Ensure immediate patching to Sourcegraph version 3.37 or above to mitigate the risk of remote code execution. Restrict access to

gitserver

services and validate user input to prevent code injection.

Long-Term Security Practices

Implement secure coding practices, conduct regular security audits, and educate developers on secure configuration management to prevent similar vulnerabilities.

Patching and Updates

Regularly monitor and apply security patches released by Sourcegraph to stay protected against known vulnerabilities.