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FKIE_CVE-2013-4073

Vulnerability from fkie_nvd - Published: 2013-08-18 02:52 - Updated: 2026-06-16 23:56
Severity
Summary
The OpenSSL::SSL.verify_certificate_identity function in lib/openssl/ssl.rb in Ruby 1.8 before 1.8.7-p374, 1.9 before 1.9.3-p448, and 2.0 before 2.0.0-p247 does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
References
cve@mitre.orghttp://forums.interworx.com/threads/8000-InterWorx-Version-5-0-14-Released-on-Beta-Channel%21
cve@mitre.orghttp://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html
cve@mitre.orghttp://lists.opensuse.org/opensuse-updates/2013-07/msg00042.html
cve@mitre.orghttp://lists.opensuse.org/opensuse-updates/2013-07/msg00044.html
cve@mitre.orghttp://rhn.redhat.com/errata/RHSA-2013-1090.html
cve@mitre.orghttp://rhn.redhat.com/errata/RHSA-2013-1103.html
cve@mitre.orghttp://rhn.redhat.com/errata/RHSA-2013-1137.html
cve@mitre.orghttp://support.apple.com/kb/HT6150
cve@mitre.orghttp://www.debian.org/security/2013/dsa-2738
cve@mitre.orghttp://www.debian.org/security/2013/dsa-2809
cve@mitre.orghttp://www.ruby-lang.org/en/news/2013/06/27/hostname-check-bypassing-vulnerability-in-openssl-client-cve-2013-4073/Vendor Advisory
cve@mitre.orghttp://www.ubuntu.com/usn/USN-1902-1
cve@mitre.orghttps://bugzilla.redhat.com/show_bug.cgi?id=979251
cve@mitre.orghttps://puppet.com/security/cve/cve-2013-4073
af854a3a-2127-422b-91ae-364da2661108http://forums.interworx.com/threads/8000-InterWorx-Version-5-0-14-Released-on-Beta-Channel%21
af854a3a-2127-422b-91ae-364da2661108http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2013-07/msg00042.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2013-07/msg00044.html
af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2013-1090.html
af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2013-1103.html
af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2013-1137.html
af854a3a-2127-422b-91ae-364da2661108http://support.apple.com/kb/HT6150
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2013/dsa-2738
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2013/dsa-2809
af854a3a-2127-422b-91ae-364da2661108http://www.ruby-lang.org/en/news/2013/06/27/hostname-check-bypassing-vulnerability-in-openssl-client-cve-2013-4073/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-1902-1
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=979251
af854a3a-2127-422b-91ae-364da2661108https://puppet.com/security/cve/cve-2013-4073
Impacted products

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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The OpenSSL::SSL.verify_certificate_identity function in lib/openssl/ssl.rb in Ruby 1.8 before 1.8.7-p374, 1.9 before 1.9.3-p448, and 2.0 before 2.0.0-p247 does not properly handle a \u0027\\0\u0027 character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n OpenSSL::SSL.verify_certificate_identity en lib/openssl/ssl.rb en Ruby v1.8 anterior a v1.8.7-p374, v1.9 anterior a v1.9.3-p448, y v2.0 anterior a v2.0.0-p247 no manejar adecuadamente un car\u00e1cter \u201c\\0\u201d en un nombre de dominio en el campo Subject Alternative Name de un certificado X.509, lo que permite a atacantes \"man-in-the-middle\" suplantar servidores SSL de su elecci\u00f3n mediante un certificado manipulado expedido por una Autoridad Certificadora leg\u00edtima, un problema relacionado con CVE-2009-2408."
    }
  ],
  "id": "CVE-2013-4073",
  "lastModified": "2026-06-16T23:56:34.390",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2013-08-18T02:52:22.917",
  "references": [
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  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-310"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Detection rules are retrieved from Rulezet.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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