oss-security - CVE-2014-3712 Katello: user parameters passed to to

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Message-ID: <5447E185.2030303@redhat.com>
Date: Wed, 22 Oct 2014 10:55:33 -0600
From: Kurt Seifried <kseifried@...hat.com>
To: "oss-security@...ts.openwall.com" <oss-security@...ts.openwall.com>
Subject: CVE-2014-3712 Katello: user parameters passed to to_sym

Jan Rusnacko of Red Hat reports:

Katello code exposes potential to_sym Denial of Service attack vector
from user input parameters. The two places identified are:

https://github.com/Katello/katello/blob/9231e24f93fa804e557fc95637cfa2c5bb92f6a7/app/controllers/katello/content_search_controller.rb#L617

https://github.com/Katello/katello/blob/9231e24f93fa804e557fc95637cfa2c5bb92f6a7/app/controllers/katello/api/api_controller.rb#L87

This type of attack is documented here -
http://docs.fedoraproject.org/en-US/Fedora_Security_Team/1/html/Secure_Ruby_Development_Guide/RubySymbols.html

This has been confirmed in testing by Eric Helms of Red Hat.

cvss2=3.5/AV:N/AC:M/Au:S/C:N/I:N/A:P

-- 
Kurt Seifried -- Red Hat -- Product Security -- Cloud
PGP A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993


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