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CVE-2022-23642

Code Injection in Sourcegraph

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 3.37
1 on Exploit-DB, 1 Metasploit module, 1 proof of concept on GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: total

Summary

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.

Timeline

  1. CVE published
  2. Public exploit on Exploit-DB

    EDB-50964

  3. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: total

  4. Record last updated
  5. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • sourcegraph sourcegraph

    fixed in 3.37

References 7

GitHub · sourcegraph/sourcegraph

packetstormsecurity.com

Exploit-DB

GitHub · rapid7/metasploit-framework

GitHub · Altelus1/CVE-2022-23642