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CVE-2015-7576

UnknownEPSS 4.86%

Last modified

CVE-2015-7576 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 4.86% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
4.86%

90.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
RubyonrailsRails4.0.0—
RubyonrailsRails4.0.1—
RubyonrailsRails4.0.2—
RubyonrailsRails4.0.3—
RubyonrailsRails4.0.4—
RubyonrailsRails4.0.5—
RubyonrailsRails4.0.6—
RubyonrailsRails4.0.7—
RubyonrailsRails4.0.8—
RubyonrailsRails4.0.9—
RubyonrailsRails4.0.10—
RubyonrailsRails4.1.0—
RubyonrailsRails4.1.1—
RubyonrailsRails4.1.2—
RubyonrailsRails4.1.3—
RubyonrailsRails4.1.4—
RubyonrailsRails4.1.5—
RubyonrailsRails4.1.6—
RubyonrailsRails4.1.7—
RubyonrailsRails4.1.7.1—
RubyonrailsRails4.1.8—
RubyonrailsRails4.1.9—
RubyonrailsRails4.1.10—
RubyonrailsRails4.1.12—
RubyonrailsRails4.1.13—
RubyonrailsRails4.1.14—
RubyonrailsRails4.2.0—
RubyonrailsRails4.2.1—
RubyonrailsRails4.2.2—
RubyonrailsRails4.2.3—
RubyonrailsRails4.2.4—
RubyonrailsRails4.2.5—
RubyonrailsRails5.0.0Beta1
RubyonrailsRuby On Rails<= 3.2.22—
RubyonrailsRuby On Rails4.0.10Rc2
RubyonrailsRuby On Rails4.0.11—
RubyonrailsRuby On Rails4.0.11.1—
RubyonrailsRuby On Rails4.0.12—
RubyonrailsRuby On Rails4.0.13—
RubyonrailsRuby On Rails4.1.11—

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2015-7576?
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.
How severe is CVE-2015-7576?
Severity scoring for CVE-2015-7576 is pending analysis. The EPSS model estimates a 4.86% probability of exploitation in the next 30 days.
How do I fix CVE-2015-7576?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST