CVE-2013-4238 (GCVE-0-2013-4238)

Vulnerability from cvelistv5 – Published: 2013-08-18 01:00 – Updated: 2024-08-06 16:38
VLAI?
Summary
The ssl.match_hostname function in the SSL module in Python 2.6 through 3.4 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.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
Show details on NVD website
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      "published": "2013-08-18T02:52:22.943",
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      "sourceIdentifier": "secalert@redhat.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-20\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2013-4238\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2013-08-18T02:52:22.943\",\"lastModified\":\"2025-04-11T00:51:21.963\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The ssl.match_hostname function in the SSL module in Python 2.6 through 3.4 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 ssl.match_hostname en el m\u00f3dulo SSL en Python v2.6 hasta v3.4 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 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  }
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • 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.



Detection rules are retrieved from Rulezet.