CVE-2023-40165

Source
https://nvd.nist.gov/vuln/detail/CVE-2023-40165
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-40165.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-40165
Related
  • GHSA-rxcq-2m4f-94wm
Published
2023-08-17T18:15:17Z
Modified
2025-01-14T20:30:53Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

rubygems.org is the Ruby community's primary gem (library) hosting service. Insufficient input validation allowed malicious actors to replace any uploaded gem version that had a platform, version number, or gem name matching /-\d/, permanently replacing the legitimate upload in the canonical gem storage bucket, and triggering an immediate CDN purge so that the malicious gem would be served immediately. The maintainers have checked all gems matching the /-\d/ pattern and can confirm that no unexpected .gems were found. As a result, we believe this vulnerability was not exploited. The easiest way to ensure that a user's applications were not exploited by this vulnerability is to check that all of your downloaded .gems have a checksum that matches the checksum recorded in the RubyGems.org database. RubyGems contributor Maciej Mensfeld wrote a tool to automatically check that all downloaded .gem files match the checksums recorded in the RubyGems.org database. You can use it by running: bundle add bundler-integrity followed by bundle exec bundler-integrity. Neither this tool nor anything else can prove you were not exploited, but the can assist your investigation by quickly comparing RubyGems API-provided checksums with the checksums of files on your disk. The issue has been patched with improved input validation and the changes are live. No action is required on the part of the user. Users are advised to validate their local gems.

References

Affected packages

Git / github.com/rubygems/rubygems.org

Affected ranges

Type
GIT
Repo
https://github.com/rubygems/rubygems.org
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Fixed