CVE-2009-2422: Improper Authentication
(updated )
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.
References
- lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
- n8.tumblr.com/post/117477059/security-hole-found-in-rails-2-3s
- secunia.com/advisories/35702
- support.apple.com/kb/HT4077
- weblog.rubyonrails.org/2009/6/3/security-problem-with-authenticate_with_http_digest
- www.securityfocus.com/bid/35579
- www.vupen.com/english/advisories/2009/1802
- exchange.xforce.ibmcloud.com/vulnerabilities/51528
- github.com/advisories/GHSA-rxq3-gm4p-5fj4
- nvd.nist.gov/vuln/detail/CVE-2009-2422
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