MEDIUM
GHSA-xc85-32mf-xpv8
Rack arbitrary code execution via timing attack
Quick fix
GHSA-xc85-32mf-xpv8 — rack: upgrade to the fixed version with the command below.
bundle update rackDetails
Rack::Session::Cookie in Rack 1.5.x before 1.5.2, 1.4.x before 1.4.5, 1.3.x before 1.3.10, 1.2.x before 1.2.8, and 1.1.x before 1.1.6 allows remote attackers to guess the session cookie, gain privileges, and execute arbitrary code via a timing attack involving an HMAC comparison function that does not run in constant time.
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://nvd.nist.gov/vuln/detail/CVE-2013-0263[ADVISORY]
- https://github.com/rack/rack/commit/0cd7e9aa397f8ebb3b8481d67dbac8b4863a7f07[WEB]
- https://github.com/rack/rack/commit/9a81b961457805f6d1a5c275d053068440421e11[WEB]
- https://bugzilla.redhat.com/show_bug.cgi?id=909071[WEB]
- https://gist.github.com/codahale/f9f3781f7b54985bee94[WEB]
- https://github.com/rack/rack[WEB]
- https://groups.google.com/d/msg/rack-devel/xKrHVWeNvDM/4ZGA576CnK4J[WEB]
- https://groups.google.com/forum/#!msg/rack-devel/RnQxm6i13C4/xfakH81yWvgJ[WEB]
- https://groups.google.com/forum/#!msg/rack-devel/bf937jPZxJM/1s6x95vIhmAJ[WEB]
- https://groups.google.com/forum/#!msg/rack-devel/hz-liLb9fKE/8jvVWU6xYiYJ[WEB]
- https://groups.google.com/forum/#!msg/rack-devel/mZsuRonD7G8/DpZIOmMLbOgJ[WEB]
- http://lists.opensuse.org/opensuse-updates/2013-03/msg00048.html[WEB]
- http://rhn.redhat.com/errata/RHSA-2013-0686.html[WEB]
- http://www.debian.org/security/2013/dsa-2783[WEB]