CVE-2015-7576 actionpack is vulnerable to remote bypass authentication

What is CVE-2015-7576?

CVE-2015-7576 is a low-severity vulnerability in Rubyonrails Rails, published on 16 Feb 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The http_basic_authenticate_with method in actionpack/lib/action_controller/metal/http_authentication.rb in the Basic Authentication implementation in Action Controller in Ruby on Rails before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 does not use a constant-time algorithm for verifying credentials, which makes it easier for remote attackers to bypass authentication by measuring timing differences.

Weakness: CWE-254

Which versions are affected by CVE-2015-7576?

4 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-2015-7576?

Upgrade actionpack to a fixed version for your release line: 3.2.22.1 or 4.1.14.1.

Is CVE-2015-7576 being exploited?

There is no known exploitation of CVE-2015-7576 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 DEBIAN-CVE-2015-7576, GHSA-p692-7mm3-3fxg, SUSE-SU-2016:0623-1, SUSE-SU-2016:0857-1, SUSE-SU-2016:0968-1.