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CVE-2009-2422

CRITICAL

rails vulnerable to improper authentication

Published October 24, 2017Updated February 16, 2024Source: osv

Summary

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

Upgrade to the fixed version using your package manager.

Bundler
Update rails to 2.3.3 or later
gem install rails -v 2.3.3

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

PackageEcosystemAffectedFixed In
rails
rubygems
0.10.0, 0.10.1, 0.11.0, 0.11.1 (+43 more)2.3.3

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-287
    Improper AuthenticationMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2009-2422?
rails vulnerable to improper authentication This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2009-2422?
CVE-2009-2422 affects rails. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2009-2422 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-rxq3-gm4p-5fj4

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