high
7.5
CWE
502 20
Advisory Published
CVE Published
Updated

CVE-2013-0156: Input Validation

First published: Tue Jan 08 2013(Updated: )

active_support/core_ext/hash/conversions.rb in Ruby on Rails before 2.3.15, 3.0.x before 3.0.19, 3.1.x before 3.1.10, and 3.2.x before 3.2.11 does not properly restrict casts of string values, which allows remote attackers to conduct object-injection attacks and execute arbitrary code, or cause a denial of service (memory and CPU consumption) involving nested XML entity references, by leveraging Action Pack support for (1) YAML type conversion or (2) Symbol type conversion.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/rubygem-actionpack<1:3.0.10-11.el6cf
1:3.0.10-11.el6cf
redhat/rubygem-activerecord<1:3.0.10-8.el6cf
1:3.0.10-8.el6cf
redhat/rubygem-activesupport<1:3.0.10-5.el6cf
1:3.0.10-5.el6cf
redhat/ruby193-rubygem-actionpack<1:3.2.8-2.el6
1:3.2.8-2.el6
redhat/ruby193-rubygem-activesupport<1:3.2.8-3.el6
1:3.2.8-3.el6
redhat/rubygem-actionpack<1:3.0.13-2.1.el6
1:3.0.13-2.1.el6
redhat/rubygem-activesupport<1:3.0.13-2.el6
1:3.0.13-2.el6
Ruby on Rails>=3.2.0<3.2.11
Ruby on Rails<2.3.15
Ruby on Rails>=3.0.0<3.0.19
Ruby on Rails>=3.1.0<3.1.10
Debian Linux=6.0
Debian Linux=7.0

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2013-0156?

    The severity of CVE-2013-0156 is classified as high due to the potential for remote code execution.

  • How do I fix CVE-2013-0156?

    To fix CVE-2013-0156, upgrade to the latest versions of Ruby on Rails that are not affected, specifically versions 2.3.15, 3.0.19, 3.1.10, or 3.2.11 and above.

  • What types of attacks can CVE-2013-0156 allow?

    CVE-2013-0156 can allow remote attackers to conduct object-injection attacks and execute arbitrary code.

  • Which versions of Ruby on Rails are affected by CVE-2013-0156?

    Affected versions include Ruby on Rails before 2.3.15, 3.0.x before 3.0.19, 3.1.x before 3.1.10, and 3.2.x before 3.2.11.

  • What components of Ruby on Rails are impacted by CVE-2013-0156?

    CVE-2013-0156 impacts the active_support/core_ext/hash/conversions.rb component of Ruby on Rails.

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