gsd-2009-3639
Vulnerability from gsd
Modified
2023-12-13 01:19
Details
The mod_tls module in ProFTPD before 1.3.2b, and 1.3.3 before 1.3.3rc2, when the dNSNameRequired TLS option is enabled, does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 client certificate, which allows remote attackers to bypass intended client-hostname restrictions via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
Aliases
Aliases
CVE-2009-3639


To clipboard 

{
  "GSD": {
    "alias": "CVE-2009-3639",
    "description": "The mod_tls module in ProFTPD before 1.3.2b, and 1.3.3 before 1.3.3rc2, when the dNSNameRequired TLS option is enabled, does not properly handle a \u0027\\0\u0027 character in a domain name in the Subject Alternative Name field of an X.509 client certificate, which allows remote attackers to bypass intended client-hostname restrictions via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.",
    "id": "GSD-2009-3639",
    "references": [
      "https://www.suse.com/security/cve/CVE-2009-3639.html",
      "https://www.debian.org/security/2009/dsa-1925"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2009-3639"
      ],
      "details": "The mod_tls module in ProFTPD before 1.3.2b, and 1.3.3 before 1.3.3rc2, when the dNSNameRequired TLS option is enabled, does not properly handle a \u0027\\0\u0027 character in a domain name in the Subject Alternative Name field of an X.509 client certificate, which allows remote attackers to bypass intended client-hostname restrictions via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.",
      "id": "GSD-2009-3639",
      "modified": "2023-12-13T01:19:49.209583Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2009-3639",
        "STATE": "PUBLIC"
      },
      "affects": {
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            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "n/a"
                        }
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              },
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          }
        ]
      },
      "problemtype": {
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              }
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      },
      "references": {
        "reference_data": [
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            "url": "http://bugs.proftpd.org/show_bug.cgi?id=3275"
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          },
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          },
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          {
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          },
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            "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/53936"
          },
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          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
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                "cpe_name": [],
                "versionEndIncluding": "1.3.2",
                "vulnerable": true
              },
              {
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                "cpe_name": [],
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              },
              {
                "cpe23Uri": "cpe:2.3:a:proftpd:proftpd:1.3.2:rc2:*:*:*:*:*:*",
                "cpe_name": [],
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              },
              {
                "cpe23Uri": "cpe:2.3:a:proftpd:proftpd:1.3.2:rc4:*:*:*:*:*:*",
                "cpe_name": [],
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              },
              {
                "cpe23Uri": "cpe:2.3:a:proftpd:proftpd:1.3.2:*:*:*:*:*:*:*",
                "cpe_name": [],
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              },
              {
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                "cpe_name": [],
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              },
              {
                "cpe23Uri": "cpe:2.3:a:proftpd:proftpd:1.3.2:rc1:*:*:*:*:*:*",
                "cpe_name": [],
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              }
            ],
            "operator": "OR"
          }
        ]
      },
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          "ID": "CVE-2009-3639"
        },
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        "description": {
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              "value": "The mod_tls module in ProFTPD before 1.3.2b, and 1.3.3 before 1.3.3rc2, when the dNSNameRequired TLS option is enabled, does not properly handle a \u0027\\0\u0027 character in a domain name in the Subject Alternative Name field of an X.509 client certificate, which allows remote attackers to bypass intended client-hostname restrictions via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408."
            }
          ]
        },
        "problemtype": {
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                  "value": "CWE-310"
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        },
        "references": {
          "reference_data": [
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              "refsource": "SECUNIA",
              "tags": [
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              ],
              "url": "http://secunia.com/advisories/37131"
            },
            {
              "name": "[oss-security] 20091023 Re: proftpd - mod_tls - Improper SSL/TLS certificate subjectAltName verification",
              "refsource": "MLIST",
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              "url": "http://marc.info/?l=oss-security\u0026m=125632960508211\u0026w=2"
            },
            {
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              "refsource": "BID",
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            },
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              "name": "FEDORA-2009-11649",
              "refsource": "FEDORA",
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              "url": "https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00642.html"
            },
            {
              "name": "DSA-1925",
              "refsource": "DEBIAN",
              "tags": [],
              "url": "http://www.debian.org/security/2009/dsa-1925"
            },
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              "name": "37219",
              "refsource": "SECUNIA",
              "tags": [],
              "url": "http://secunia.com/advisories/37219"
            },
            {
              "name": "proftpd-modtls-security-bypass(53936)",
              "refsource": "XF",
              "tags": [],
              "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/53936"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.8,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 4.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        }
      },
      "lastModifiedDate": "2017-08-17T01:31Z",
      "publishedDate": "2009-10-28T14:30Z"
    }
  }
}


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