CVE-2022-23642 Information

Description

Sourcegraph is a code search and navigation engine. Sourcegraph prior to version 3.37 is vulnerable to remote code execution in the gitserver service. The service acts as a git exec proxy and fails to properly restrict calling git config. This allows an attacker to set the git core.sshCommand option which sets git to use the specified command instead of ssh when they need to connect to a remote system. Exploitation of this vulnerability depends on how Sourcegraph is deployed. An attacker able to make HTTP requests to internal services like gitserver is able to exploit it. This issue is patched in Sourcegraph version 3.37. As a workaround ensure that requests to gitserver are properly protected.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/sourcegraph/sourcegraph/security/advisories/GHSA-qcmp-fx72-q8q9 https://github.com/sourcegraph/sourcegraph/pull/30833

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8