CVE-2009-2422
Description
The example code for the digest authentication functionality (http_authentication.rb) in Ruby on Rails before 2.3.3 defines an authenticate_or_request_with_http_digest block that returns nil instead of false when the user does not exist, which allows context-dependent attackers to bypass authentication for applications that are derived from this example by sending an invalid username without a password.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2.3.5-1 |
| sid | Fixed | 2.3.5-1 |
| forky | Fixed | 2.3.5-1 |
| bullseye | Fixed | 2.3.5-1 |
| bookworm | Fixed | 2.3.5-1 |
References
- http://weblog.rubyonrails.org/2009/6/3/security-problem-with-authenticate_with_http_digest
- https://nvd.nist.gov/vuln/detail/CVE-2009-2422
- https://exchange.xforce.ibmcloud.com/vulnerabilities/51528
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rails/CVE-2009-2422.yml
- https://web.archive.org/web/20090711160153/http://secunia.com/advisories/35702
- https://web.archive.org/web/20200229192617/http://www.securityfocus.com/bid/35579
- http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
- http://n8.tumblr.com/post/117477059/security-hole-found-in-rails-2-3s
- http://support.apple.com/kb/HT4077
- https://security-tracker.debian.org/tracker/CVE-2009-2422
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.