ActiveRecord in Ruby on Rails before 2.3.17, 3.1.x before 3.1.11, and 3.2.x before 3.2.12 allows remote attackers to bypass the attr_protected protection mechanism and modify protected model attributes via a crafted request.

Red Hat OpenShift Enterprise 1.1.1 is now available.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

OpenShift Enterprise is a cloud computing Platform-as-a-Service (PaaS) solution from Red Hat, and is designed for on-premise or private cloud deployments.

Installing the updated packages and restarting the OpenShift services are the only requirements for this update. However, if you are updating your system to Red Hat Enterprise Linux 6.4 while applying OpenShift Enterprise 1.1.1 updates, it is recommended that you restart your system.

For further information about this release, refer to the OpenShift Enterprise 1.1.1 Technical Notes, available shortly from https://access.redhat.com/knowledge/docs/

This update also fixes the following security issues :

Multiple cross-site scripting (XSS) flaws were found in rubygem-actionpack. A remote attacker could use these flaws to conduct XSS attacks against users of an application using rubygem-actionpack.
(CVE-2012-3463, CVE-2012-3464, CVE-2012-3465)

It was found that certain methods did not sanitize file names before passing them to lower layer routines in Ruby. If a Ruby application created files with names based on untrusted input, it could result in the creation of files with different names than expected.
(CVE-2012-4522)

A denial of service flaw was found in the implementation of associative arrays (hashes) in Ruby. An attacker able to supply a large number of inputs to a Ruby application (such as HTTP POST request parameters sent to a web application) that are used as keys when inserting data into an array could trigger multiple hash function collisions, making array operations take an excessive amount of CPU time. To mitigate this issue, a new, more collision resistant algorithm has been used to reduce the chance of an attacker successfully causing intentional collisions. (CVE-2012-5371)

Input validation vulnerabilities were discovered in rubygem-activerecord. A remote attacker could possibly use these flaws to perform a SQL injection attack against an application using rubygem-activerecord. (CVE-2012-2661, CVE-2012-2695, CVE-2013-0155)

Input validation vulnerabilities were discovered in rubygem-actionpack. A remote attacker could possibly use these flaws to perform a SQL injection attack against an application using rubygem-actionpack and rubygem-activerecord. (CVE-2012-2660, CVE-2012-2694)

A flaw was found in the HTTP digest authentication implementation in rubygem-actionpack. A remote attacker could use this flaw to cause a denial of service of an application using rubygem-actionpack and digest authentication. (CVE-2012-3424)

A flaw was found in the handling of strings in Ruby safe level 4. A remote attacker can use Exception#to_s to destructively modify an untainted string so that it is tainted, the string can then be arbitrarily modified. (CVE-2012-4466)

A flaw was found in the method for translating an exception message into a string in the Ruby Exception class. A remote attacker could use this flaw to bypass safe level 4 restrictions, allowing untrusted (tainted) code to modify arbitrary, trusted (untainted) strings, which safe level 4 restrictions would otherwise prevent. (CVE-2012-4464)

It was found that ruby_parser from rubygem-ruby_parser created a temporary file in an insecure way. A local attacker could use this flaw to perform a symbolic link attack, overwriting arbitrary files accessible to the application using ruby_parser. (CVE-2013-0162)

The CVE-2013-0162 issue was discovered by Michael Scherer of the Red Hat Regional IT team.

Users are advised to upgrade to Red Hat OpenShift Enterprise 1.1.1.

The remote host is affected by the vulnerability described in GLSA-201412-28 (Ruby on Rails: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Ruby on Rails. Please       review the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could execute arbitrary code or cause a Denial of       Service condition. Furthermore, a remote attacker may be able to execute       arbitrary SQL commands, change parameter names for form inputs and make       changes to arbitrary records in the system, bypass intended access       restrictions, render arbitrary views, inject arbitrary web script or       HTML, or conduct cross-site request forgery (CSRF) attacks.
  Workaround :

    There is no known workaround at this time.

The Ruby on Rails 2.3 stack was updated to 2.3.17. The Ruby on Rails 3.2 stack was updated to 3.2.12.

The Ruby Rack was updated to 1.1.6. The Ruby Rack was updated to 1.2.8. The Ruby Rack was updated to 1.3.10. The Ruby Rack was updated to 1.4.5.

The updates fix various security issues and bugs.

  - update to version 2.3.17 (bnc#803336, bnc#803339)     CVE-2013-0276 CVE-2013-0277 :

  - update to version 3.2.12 (bnc#803336) CVE-2013-0276 :

  - update to version 3.2.12 (bnc#803336) CVE-2013-0276:
    issue with attr_protected where malformed input could     circumvent protection

  - update to version 2.3.17 (bnc#803336, bnc#803339)     CVE-2013-0276 CVE-2013-0277 :

  - Fix issue with attr_protected where malformed input     could circumvent protection

  - Fix Serialized Attributes YAML Vulnerability

  - update to version 2.3.17 (bnc#803336, bnc#803339)     CVE-2013-0276 CVE-2013-0277 :

  - Fix issue with attr_protected where malformed input     could circumvent protection

  - Fix Serialized Attributes YAML Vulnerability

  - update to version 3.2.12 (bnc#803336) CVE-2013-0276 :

  - Quote numeric values being compared to non-numeric     columns. Otherwise, in some database, the string column     values will be coerced to a numeric allowing 0, 0.0 or     false to match any string starting with a non-digit.

  - update to 1.1.6 (bnc#802794)

  - Fix CVE-2013-0263, timing attack against     Rack::Session::Cookie

  - update to 1.2.8 (bnc#802794)

  - Fix CVE-2013-0263, timing attack against     Rack::Session::Cookie

  - update to 1.3.10 (bnc#802794)

  - Fix CVE-2013-0263, timing attack against     Rack::Session::Cookie

  - ruby rack update to 1.4.5 (bnc#802794 bnc#802795)

  - Fix CVE-2013-0263, timing attack against     Rack::Session::Cookie

  - Fix CVE-2013-0262, symlink path traversal in Rack::File

  - ruby rack update to 1.4.4 (bnc#798452)

  - [SEC] Rack::Auth::AbstractRequest no longer symbolizes     arbitrary strings (CVE-2013-0184)

  - ruby rack changes from 1.4.3

  - Security: Prevent unbounded reads in large multipart     boundaries (CVE-2013-0183)

  - ruby rack changes from 1.4.2 (CVE-2012-6109)

  - Add warnings when users do not provide a session secret

  - Fix parsing performance for unquoted filenames

  - Updated URI backports

  - Fix URI backport version matching, and silence constant     warnings

  - Correct parameter parsing with empty values

  - Correct rackup '-I' flag, to allow multiple uses

  - Correct rackup pidfile handling

  - Report rackup line numbers correctly

  - Fix request loops caused by non-stale nonces with time     limits

  - Fix reloader on Windows

  - Prevent infinite recursions from Response#to_ary

  - Various middleware better conforms to the body close     specification

  - Updated language for the body close specification

  - Additional notes regarding ECMA escape compatibility     issues

  - Fix the parsing of multiple ranges in range headers

  - Prevent errors from empty parameter keys

  - Added PATCH verb to Rack::Request

  - Various documentation updates

  - Fix session merge semantics (fixes rack-test)

  - Rack::Static :index can now handle multiple directories

  - All tests now utilize Rack::Lint (special thanks to Lars     Gierth)

  - Rack::File cache_control parameter is now deprecated,     and removed by 1.5

  - Correct Rack::Directory script name escaping

  - Rack::Static supports header rules for sophisticated     configurations

  - Multipart parsing now works without a Content-Length     header

  - New logos courtesy of Zachary Scott!

  - Rack::BodyProxy now explicitly defines #each, useful for     C extensions

  - Cookies that are not URI escaped no longer cause     exceptions

The remote host is running a version of Mac OS X 10.6 or 10.7 that does not have Security Update 2013-002 applied.  This update contains numerous security-related fixes for the following components :

  - CoreMedia Playback (10.7 only)
  - Directory Service (10.6 only)
  - OpenSSL
  - QuickDraw Manager
  - QuickTime
  - Ruby (10.6 only)
  - SMB (10.7 only)

Red Hat Subscription Asset Manager 1.2.1, which fixes several security issues, multiple bugs, and adds various enhancements, is now available.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Red Hat Subscription Asset Manager acts as a proxy for handling subscription information and software updates on client machines.

The latest packages for Subscription Asset Manager include a number of security fixes :

When a Subscription Asset Manager instance is created, its configuration script automatically creates an RPM of the internal subscription service CA certificate. However, this RPM incorrectly created the CA certificate with file permissions of 0666. This allowed other users on a client system to modify the CA certificate used to trust the remote subscription server. All administrators are advised to update and deploy the subscription service certificate on all systems which use Subscription Asset Manager as their subscription service. This procedure is described in:
https://access.redhat.com/knowledge/docs/en-US/ Red_Hat_Subscription_Asset_Manager/1.2/html/Installation_Guide/ sect-Installation_Guide-Administration-Upgrading_Subscription_Asset_Ma nager.html (CVE-2012-6116)

Manifest signature checking was not implemented for early versions of Subscription Asset Manager. This meant that a malicious user could edit a manifest file, insert arbitrary data, and successfully upload the edited manifest file into the Subscription Asset Manager server.
(CVE-2012-6119)

Ruby's documentation generator had a flaw in the way it generated HTML documentation. When a Ruby application exposed its documentation on a network (such as a web page), an attacker could use a specially- crafted URL to open an arbitrary web script or to execute HTML code within the application's user session. (CVE-2013-0256)

A timing attack flaw was found in the way rubygem-rack and ruby193-rubygem-rack processed HMAC digests in cookies. This flaw could aid an attacker using forged digital signatures to bypass authentication checks. (CVE-2013-0263)

A flaw in rubygem-json allowed remote attacks by creating different types of malicious objects. For example, it could initiate a denial of service (DoS) attack through resource consumption by using a JSON document to create arbitrary Ruby symbols, which were never garbage collected. It could also be exploited to create internal objects which could allow a SQL injection attack. (CVE-2013-0269)

A flaw in ActiveRecord in Ruby on Rails allowed remote attackers to circumvent attribute protections and to insert their own crafted requests to change protected attribute values. (CVE-2013-0276)

HTML markup was not properly escaped when filling in the username field in the Notifications form of the Subscription Asset Manager UI.
This meant that HTML code used in the value was then applied in the UI page when the entry was viewed. This could have allowed malicious HTML code to be entered. The field value is now validated and any HTML tags are escaped. (CVE-2013-1823)

These updated packages also include bug fixes and enhancements :

* Previously, no SELinux policy for the subscription service was included with the Subscription Asset Manager packages. The candlepin-selinux package is now included with SELinux policies for the subscription server. (BZ#906901)

* When attempting to use the subscription service's CA certificate to validate a manifest during import, the comparison failed. The upstream subscription service which generated the manifest is a different service than the local subscription service; thus, they have different CA certificates. This caused importing a manifest to fail with the error 'archive failed signature'. This has been fixed so that the proper certificate is used for verification. (BZ#918778)

All users of Subscription Asset Manager are recommended to update to the latest packages.

Fix for CVE-2013-0276.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Aaron Patterson reports :

The attr_protected method allows developers to specify a blacklist of model attributes which users should not be allowed to assign to. By using a specially crafted request, attackers could circumvent this protection and alter values that were meant to be protected.

All users running an affected release should either upgrade or use one of the work arounds immediately. Users should also consider switching from attr_protected to the whitelist method attr_accessible which is not vulnerable to this attack.

Two vulnerabilities were discovered in Ruby on Rails, a Ruby framework for web application development.

  - CVE-2013-0276     The blacklist provided by the attr_protected method     could be bypassed with crafted requests, having an     application-specific impact.

  - CVE-2013-0277     In some applications, the +serialize+ helper in     ActiveRecord could be tricked into deserializing     arbitrary YAML data, possibly leading to remote code     execution.

ID	Name	Product	Family	Severity
119432	RHEL 6 : openshift (RHSA-2013:0582)	Nessus	Red Hat Local Security Checks	high
79981	GLSA-201412-28 : Ruby on Rails: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	critical
74900	openSUSE Security Update : RubyOnRails (openSUSE-SU-2013:0338-1)	Nessus	SuSE Local Security Checks	critical
66809	Mac OS X Multiple Vulnerabilities (Security Update 2013-002)	Nessus	MacOS X Local Security Checks	critical
65904	RHEL 6 : Subscription Asset Manager (RHSA-2013:0686)	Nessus	Red Hat Local Security Checks	high
64738	Fedora 18 : rubygem-activemodel-3.2.8-2.fc18 (2013-2398)	Nessus	Fedora Local Security Checks	medium
64737	Fedora 17 : rubygem-activemodel-3.0.11-3.fc17 (2013-2391)	Nessus	Fedora Local Security Checks	medium
64667	FreeBSD : Ruby Activemodel Gem -- Circumvention of attr_protected (beab40bf-c1ca-4d2b-ad46-2f14bac8a968)	Nessus	FreeBSD Local Security Checks	medium
64591	Debian DSA-2620-1 : rails - several vulnerabilities	Nessus	Debian Local Security Checks	critical

Detections

Analytics

CVE-2013-0276

high

Tenable Plugins

high

critical

critical

critical

high

medium

medium

medium

critical