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.
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
| Link | Tags |
|---|---|
| http://secunia.com/advisories/35702 | vendor advisory broken link third party advisory |
| http://www.securityfocus.com/bid/35579 | patch vdb entry broken link third party advisory |
| http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html | vendor advisory mailing list |
| http://weblog.rubyonrails.org/2009/6/3/security-problem-with-authenticate_with_http_digest | patch |
| http://www.vupen.com/english/advisories/2009/1802 | patch vendor advisory broken link vdb entry |
| http://support.apple.com/kb/HT4077 | third party advisory |
| http://n8.tumblr.com/post/117477059/security-hole-found-in-rails-2-3s | patch exploit |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/51528 | third party advisory vdb entry |