CVE-2013-4545 (GCVE-0-2013-4545)

Vulnerability from cvelistv5 – Published: 2013-11-23 11:00 – Updated: 2024-08-06 16:45
VLAI
Summary
cURL and libcurl 7.18.0 through 7.32.0, when built with OpenSSL, disables the certificate CN and SAN name field verification (CURLOPT_SSL_VERIFYHOST) when the digital signature verification (CURLOPT_SSL_VERIFYPEER) is disabled, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
Severity
No CVSS data available.
CWE
  • n/a
Date Public
2013-11-15 00:00
Show details on NVD website

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      "descriptions": [
        {
          "lang": "en",
          "value": "cURL and libcurl 7.18.0 through 7.32.0, when built with OpenSSL, disables the certificate CN and SAN name field verification (CURLOPT_SSL_VERIFYHOST) when the digital signature verification (CURLOPT_SSL_VERIFYPEER) is disabled, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate."
        },
        {
          "lang": "es",
          "value": "cURL y libcurl 7.18.0 hasta la versi\u00f3n 7.32.0, cuando es compilado con OpenSSL, desactiva la verificaci\u00f3n del nombre de campos del certificado CN y SAN (CURLOPT_SSL_VERIFYHOST) cuando la verificaci\u00f3n de firma digital (CURLOPT_SSL_VERIFYPEER) est\u00e1 desactivada, lo que permite a atacantes man-in-the-middle falsificar servidores SSL a trav\u00e9s de un certificado v\u00e1lido arbitrario."
        }
      ],
      "id": "CVE-2013-4545",
      "lastModified": "2024-11-21T01:55:48.107",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "MEDIUM",
            "cvssData": {
              "accessComplexity": "MEDIUM",
              "accessVector": "NETWORK",
              "authentication": "NONE",
              "availabilityImpact": "NONE",
              "baseScore": 4.3,
              "confidentialityImpact": "NONE",
              "integrityImpact": "PARTIAL",
              "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
              "version": "2.0"
            },
            "exploitabilityScore": 8.6,
            "impactScore": 2.9,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
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      "published": "2013-11-23T11:55:04.740",
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                    "vulnerable": true
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                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "cURL and libcurl 7.18.0 through 7.32.0, when built with OpenSSL, disables the certificate CN and SAN name field verification (CURLOPT_SSL_VERIFYHOST) when the digital signature verification (CURLOPT_SSL_VERIFYPEER) is disabled, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate."
          },
          {
            "lang": "es",
            "value": "cURL y libcurl 7.18.0 hasta la versi\u00f3n 7.32.0, cuando es compilado con OpenSSL, desactiva la verificaci\u00f3n del nombre de campos del certificado CN y SAN (CURLOPT_SSL_VERIFYHOST) cuando la verificaci\u00f3n de firma digital (CURLOPT_SSL_VERIFYPEER) est\u00e1 desactivada, lo que permite a atacantes man-in-the-middle falsificar servidores SSL a trav\u00e9s de un certificado v\u00e1lido arbitrario."
          }
        ],
        "id": "CVE-2013-4545",
        "lastModified": "2026-04-29T01:13:23.040",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "MEDIUM",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 4.3,
                "confidentialityImpact": "NONE",
                "integrityImpact": "PARTIAL",
                "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 8.6,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2013-11-23T11:55:04.740",
        "references": [
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://curl.haxx.se/docs/adv_20131115.html"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://lists.opensuse.org/opensuse-updates/2013-12/msg00047.html"
          },
          {
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            "url": "http://lists.opensuse.org/opensuse-updates/2013-12/msg00053.html"
          },
          {
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            "url": "http://www.debian.org/security/2013/dsa-2798"
          },
          {
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            "url": "http://www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.html"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html"
          },
          {
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            "url": "http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html"
          },
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            "url": "http://www.ubuntu.com/usn/USN-2048-1"
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            "url": "http://www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html"
          },
          {
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            "url": "http://www.ubuntu.com/usn/USN-2048-1"
          },
          {
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            "url": "https://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c04463322"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-310"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T12:37:40+00:00",
      "cve": "CVE-2013-4545",
      "id": "CVE-2013-4545",
      "initial_release_date": "2013-11-15T00:00:00+00:00",
      "product_status:known_not_affected": "9",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "curl: TLS/SSL certificate name check disabled with peer verification",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2013/cve-2013-4545.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-24T00:00:22Z",
      "cve": "CVE-2013-4545",
      "id": "CVE-2013-4545",
      "initial_release_date": "2023-02-15T05:35:39Z",
      "product_status:recommended": "214",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2013-4545",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2013-4545.json",
      "version": "17"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.

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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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