CVE-2012-2660 Action Pack contains database-query restrictions bypass

What is CVE-2012-2660?

CVE-2012-2660 is a medium-severity authentication bypass vulnerability in Rubyonrails Rails, published on 22 Jun 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

actionpack/lib/action_dispatch/http/request.rb in Ruby on Rails before 3.0.13, 3.1.x before 3.1.5, and 3.2.x before 3.2.4 does not properly consider differences in parameter handling between the Active Record component and the Rack interface, which allows remote attackers to bypass intended database-query restrictions and perform NULL checks via a crafted request, as demonstrated by certain "[nil]" values, a related issue to CVE-2012-2694.

Weakness: CWE-264

Which versions are affected by CVE-2012-2660?

8 open source packages ship an affected version, including actionpack. It affects 2 products.

Products include Rubyonrails Rails, Rubyonrails Ruby on Rails.

How do I fix CVE-2012-2660?

Upgrade actionpack to a fixed version for your release line: 2.3.16, 3.0.13, 3.1.5 or 3.2.4.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2012-2660 being exploited?

There is no known exploitation of CVE-2012-2660 in the wild and no public exploit code.

Other vulnerabilities in Rubyonrails Rails

• CVE-2013-0277 Active Record contains deserialization of arbitrary YAML Critical 10.0
• CVE-2017-17916 SQL injection in n/a High 8.1
• CVE-2017-17917 SQL injection in n/a High 8.1
• CVE-2026-33195 Rails Active Storage has possible Path Traversal in DiskService High 8.0
• CVE-2024-26142 Rails possible ReDoS vulnerability in Accept header parsing in Action Dispatch High 7.5

All Rubyonrails Rails vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-hgpp-pp89-4fgf.