CVE-2009-2422
9.8 · CRITICALOverview
CVE-2009-2422 is a critical-severity vulnerability affecting rubyonrails ruby_on_rails. It was published on July 10, 2009 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from rubyonrails. Update ruby_on_rails to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| rubyonrails | ruby_on_rails | >= 0, < 2.3.3 | Affected |
| apple | mac_os_x | >= 10.6.0, < 10.6.3 | Affected |
| apple | mac_os_x_server | >= 10.6.0, < 10.6.3 | Affected |
References
Frequently Asked Questions
What is CVE-2009-2422?
CVE-2009-2422 is a critical-severity vulnerability affecting rubyonrails ruby_on_rails. It was published on July 10, 2009 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2009-2422?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2009-2422?
Check the references section for vendor advisories and patches from rubyonrails. Update ruby_on_rails to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2009-2422?
CyberStrike's AI-powered security agents can automatically detect CVE-2009-2422 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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