{
  "canonical_id": "rails--CVE-2013-0156",
  "system_id": "rails",
  "display_name": "Ruby on Rails",
  "category": "frameworks",
  "advisory_mode": "core",
  "title": "CVE-2013-0156",
  "summary": "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.",
  "published_at": "2013-01-13T22:55:00.947",
  "updated_at": "2025-04-11T00:51:21.963",
  "severity": "high",
  "cvss_score": 7.5,
  "exploit_status": "unknown",
  "source_confidence": "ecosystem-authority",
  "official_source_url": "http://ics-cert.us-cert.gov/advisories/ICSA-13-036-01A",
  "secondary_source_urls": [
    "http://lists.apple.com/archives/security-announce/2013/Mar/msg00002.html",
    "http://rhn.redhat.com/errata/RHSA-2013-0153.html",
    "http://rhn.redhat.com/errata/RHSA-2013-0154.html",
    "http://rhn.redhat.com/errata/RHSA-2013-0155.html",
    "http://weblog.rubyonrails.org/2013/1/28/Rails-3-0-20-and-2-3-16-have-been-released/",
    "http://www.debian.org/security/2013/dsa-2604",
    "http://www.fujitsu.com/global/support/software/security/products-f/sw-sv-rcve-ror201301e.html",
    "http://www.insinuator.net/2013/01/rails-yaml/",
    "http://www.kb.cert.org/vuls/id/380039",
    "http://www.kb.cert.org/vuls/id/628463",
    "https://community.rapid7.com/community/metasploit/blog/2013/01/09/serialization-mischief-in-ruby-land-cve-2013-0156",
    "https://groups.google.com/group/rubyonrails-security/msg/c1432d0f8c70e89d?dmode=source&output=gplain",
    "https://puppet.com/security/cve/cve-2013-0156"
  ],
  "aliases": [
    "CVE-2013-0156"
  ],
  "cve_ids": [
    "CVE-2013-0156"
  ],
  "ghsa_ids": [],
  "osv_ids": [],
  "affected_versions": [],
  "fixed_versions": [],
  "package_name": null,
  "render_markdown": false,
  "case_path": null,
  "secure_code_topics": [
    "xss-output-encoding",
    "file-upload-validation",
    "authz-server-side-recheck"
  ],
  "status": "triage",
  "triage_reasons": [
    "missing affected/fixed version details"
  ],
  "verification_status": "triage-manual",
  "verification_mode": "synthetic",
  "last_verified_at": null,
  "last_run_id": null,
  "evidence_bundle": null,
  "historical_status": null,
  "latest_status": null,
  "browser_evidence": {
    "required": false,
    "present": false,
    "refs": []
  },
  "repro_profile_id": "xss-generic",
  "artifact_mode": "synthetic",
  "blocked_reason": null,
  "metadata": {
    "source_names": [
      "NVD Ruby on Rails"
    ],
    "source_kinds": [
      "nvd-search"
    ],
    "candidate_count": 1
  }
}