CVE-2013-0333

highpriority · attend · 73EPSS 0.956 · 100 %ileexploit · weaponizedEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

4 exploits · weaponized

Likely / severe?

95.6% (100th) EPSS

CVSS 7.5 · high

Is it mine?

53 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

lib/active_support/json/backends/yaml.rb in Ruby on Rails 2.3.x before 2.3.16 and 3.0.x before 3.0.20 does not properly convert JSON data to YAML data for processing by a YAML parser, which allows remote attackers to execute arbitrary code, conduct SQL injection attacks, or bypass authentication via crafted data that triggers unsafe decoding, a different vulnerability than CVE-2013-0156.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedrubygem-activesupport-1:3.0.10-7.el6cf.noarch as a component of Red Hat Subscription Asset Manager for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2013:0201
Fixedrubygem-activesupport-1:3.0.10-7.el6cf.src as a component of Red Hat Subscription Asset Manager for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2013:0201
Fixedrubygem-activesupport-1:3.0.13-4.el6op.noarch as a component of Red Hat OpenShift Enterprise Infrastructureredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2013:0202
Fixedrubygem-activesupport-1:3.0.13-4.el6op.noarch as a component of Red Hat OpenShift Enterprise Noderedhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2013:0202
Fixedrubygem-activesupport-1:3.0.13-4.el6op.src as a component of Red Hat OpenShift Enterprise Infrastructureredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2013:0202
Fixedrubygem-activesupport-1:3.0.13-4.el6op.src as a component of Red Hat OpenShift Enterprise Noderedhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2013:0202
Fixedkatello-0:1.1.12.1-1.el6cf.noarch as a component of CloudForms System Engine for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2013:0203
Fixedkatello-0:1.1.12.1-1.el6cf.src as a component of CloudForms System Engine for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2013:0203
Fixedkatello-all-0:1.1.12.1-1.el6cf.noarch as a component of CloudForms System Engine for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2013:0203
Fixedkatello-api-docs-0:1.1.12.1-1.el6cf.noarch as a component of CloudForms System Engine for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2013:0203
Fixedkatello-common-0:1.1.12.1-1.el6cf.noarch as a component of CloudForms System Engine for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2013:0203
Fixedkatello-glue-candlepin-0:1.1.12.1-1.el6cf.noarch as a component of CloudForms System Engine for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2013:0203
Fixedkatello-glue-pulp-0:1.1.12.1-1.el6cf.noarch as a component of CloudForms System Engine for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2013:0203
Fixedrubygem-activesupport-1:3.0.10-9.el6cf.noarch as a component of CloudForms Cloud Engine for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2013:0203
Fixedrubygem-activesupport-1:3.0.10-9.el6cf.noarch as a component of CloudForms System Engine for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2013:0203
Fixedrubygem-activesupport-1:3.0.10-9.el6cf.src as a component of CloudForms Cloud Engine for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2013:0203
Fixedrubygem-activesupport-1:3.0.10-9.el6cf.src as a component of CloudForms System Engine for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2013:0203

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Psecondary · FSTEC (BDU) RU

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:P/E:Hsecondary · CVSS-BT (t0sche)

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Psecondary · Red Hat Product Security US

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-502USCWE-74US

exploits (4)

Public proof-of-concept and weaponised exploit code.

exploit/multi/http/rails_json_yaml_code_execRuby on Rails JSON Processor YAML Deserialization Code Executionweaponized · metasploit
EDB-24434Ruby on Rails - JSON Processor YAML Deserialization Code Execution (Metasploit)functional · exploit_db
auxiliary/scanner/http/rails_json_yaml_scannerRuby on Rails JSON Processor YAML Deserialization Scannerfunctional · metasploit
heroku/heroku-CVE-2013-0333heroku/heroku-CVE-2013-0333PoC · poc_in_github

affected products (53)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 6fstec_bduRU
rubyonrails rails= 2.3.0nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
rubyonrails rails= 2.3.1nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
rubyonrails rails= 2.3.10nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
rubyonrails rails= 2.3.11nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
rubyonrails rails= 2.3.12nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
rubyonrails rails= 2.3.13nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
rubyonrails rails= 2.3.14nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
rubyonrails rails= 2.3.15nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
rubyonrails rails= 2.3.2nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
rubyonrails rails= 2.3.3nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
rubyonrails rails= 2.3.4nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
rubyonrails rails= 2.3.9nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
rubyonrails rails= 3.0.0nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
rubyonrails rails= 3.0.1nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
rubyonrails rails= 3.0.10nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
rubyonrails rails= 3.0.11nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
rubyonrails rails= 3.0.12nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
rubyonrails rails= 3.0.13nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*

showing 20 of 53

advisories (4)

Vendor and ecosystem advisories describing this.

RHSA-2013:0201Red Hat Security Advisory: rubygem-activesupport security update2013-01-28csaf · redhat_csafUS
An updated rubygem-activesupport package that fixes one security issue is now available for Red Hat Subscription Asset Manager. The Red Hat Security Response Team has rated this update as having critical security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
RHSA-2013:0202Red Hat Security Advisory: rubygem-activesupport security update2013-01-28csaf · redhat_csafUS
An updated rubygem-activesupport package that fixes one security issue is now available for Red Hat OpenShift Enterprise 1.0. The Red Hat Security Response Team has rated this update as having critical security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
RHSA-2013:0203Red Hat Security Advisory: rubygem-activesupport security update2013-01-29csaf · redhat_csafUS
An updated rubygem-activesupport package that fixes one security issue is now available for Red Hat CloudForms. The Red Hat Security Response Team has rated this update as having critical security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
GHSA-xgr2-v94m-rc9gactivesupport in Rails vulnerable to incorrect data conversion2017-10-24ghsa · osvUS
`lib/active_support/json/backends/yaml.rb` in Ruby on Rails 2.3.x before 2.3.16 and 3.0.x before 3.0.20 does not properly convert JSON data to YAML data for processing by a YAML parser, which allows remote attackers to execute arbitrary code, conduct SQL injection attacks, or bypass authentication via crafted data that triggers unsafe decoding, a different vulnerability than CVE-2013-0156.

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd redhat_csaf osv NVD CVE.org MITRE

published 2013-01-30modified 2026-06-16

references (41)

External citations — patches, advisories, analysis.

scry

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