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CVE-2015-7576

Published: 16 February 2016

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.

Notes

AuthorNote
seth-arnold
In Oneiric-Saucy, rails package is just for transition;
The rails package contains actual code from vivid onward
precise_ruby-actionpack-2.3 -- documentation is buggy but
doesn't contain an implmentation itself.

Priority

Medium

Cvss 3 Severity Score

3.7

Score breakdown

Status

Package Release Status
rails
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Not vulnerable
(2:4.2.6-1)
cosmic Not vulnerable
(2:4.2.6-1)
disco Not vulnerable
(2:4.2.6-1)
precise Not vulnerable
(contains no code)
trusty Does not exist
(trusty was not-affected [contains no code])
upstream
Released (5.0.0.beta1.1, 4.2.5.1, 4.1.14.1, 3.2.22.1)
vivid
Released (2:4.1.8-1+deb8u1build0.15.04.1)
wily Ignored
(end of life)
xenial Not vulnerable
(2:4.2.6-1)
yakkety Ignored
(end of life)
zesty Ignored
(end of life)
Patches:
upstream: https://marc.info/?l=oss-security&m=145375027528562&w=2
rails-4.0
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

trusty Does not exist
(trusty was needed)
upstream Not vulnerable

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

ruby-actionpack-2.3
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

precise Not vulnerable

trusty Does not exist

upstream Ignored
(end of life)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

ruby-actionpack-3.2
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

trusty Does not exist
(trusty was needed)
upstream Not vulnerable

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

ruby-activerecord-2.3
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

precise Not vulnerable

trusty Does not exist

upstream Ignored
(end of life)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

ruby-activerecord-3.2
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

trusty Does not exist
(trusty was not-affected)
upstream Not vulnerable

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

ruby-activesupport-2.3
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

precise Not vulnerable

trusty Does not exist

upstream Ignored
(end of life)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

ruby-activesupport-3.2
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

trusty Does not exist
(trusty was not-affected)
upstream Not vulnerable

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

ruby-rails-2.3
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

precise Not vulnerable

trusty Does not exist

upstream Ignored
(end of life)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

ruby-rails-3.2
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

trusty Does not exist
(trusty was not-affected)
upstream Not vulnerable

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

Severity score breakdown

Parameter Value
Base score 3.7
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact None
Availability impact None
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N