CVE-2009-2422
First published: Fri Jul 10 2009(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.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| rubygems/rails | <2.3.3 | 2.3.3 |
| Ruby on Rails | =2.3.3 | |
| Ruby on Rails | <2.3.3 | |
| macOS Yosemite | >=10.6.0<10.6.3 | |
| macOS Yosemite | =10.5.8 | |
| Apple Mac OS X Server | >=10.6.0<10.6.3 | |
| Apple Mac OS X Server | =10.5.8 |
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Reference Links
- http://secunia.com/advisories/35702
- http://www.vupen.com/english/advisories/2009/1802
- http://www.securityfocus.com/bid/35579
- http://weblog.rubyonrails.org/2009/6/3/security-problem-with-authenticate_with_http_digest
- http://n8.tumblr.com/post/117477059/security-hole-found-in-rails-2-3s
- http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
- http://support.apple.com/kb/HT4077
- https://exchange.xforce.ibmcloud.com/vulnerabilities/51528
- https://nvd.nist.gov/vuln/detail/CVE-2009-2422
- 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
- https://github.com/advisories/GHSA-rxq3-gm4p-5fj4 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2009-2422?
The severity of CVE-2009-2422 is considered to be moderate as it allows attackers to bypass authentication under certain conditions.
How do I fix CVE-2009-2422?
To fix CVE-2009-2422, you should upgrade to Ruby on Rails version 2.3.3 or later.
What does CVE-2009-2422 affect?
CVE-2009-2422 affects Ruby on Rails versions before 2.3.3, particularly its digest authentication functionality.
When was CVE-2009-2422 published?
CVE-2009-2422 was published on July 28, 2009.
Who is impacted by CVE-2009-2422?
Context-dependent attackers can exploit CVE-2009-2422 to bypass authentication in applications using affected versions of Ruby on Rails.
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