FKIE_CVE-2009-0125

Vulnerability from fkie_nvd - Published: 2009-01-15 17:30 - Updated: 2026-06-16 23:04
Severity
Summary
NOTE: this issue has been disputed by the upstream vendor. nasl/nasl_crypto2.c in the Nessus Attack Scripting Language library (aka libnasl) 2.2.11 does not properly check the return value from the OpenSSL DSA_do_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077. NOTE: the upstream vendor has disputed this issue, stating "while we do misuse this function (this is a bug), it has absolutely no security ramification.
References
cve@mitre.orghttp://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511517Exploit
cve@mitre.orghttp://cvs.fedoraproject.org/viewvc/rpms/libnasl/F-10/libnasl.spec?r1=1.16&r2=1.17
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2009-02/msg00000.html
cve@mitre.orghttp://openwall.com/lists/oss-security/2009/01/12/4
cve@mitre.orghttp://www.attrition.org/pipermail/vim/2009-January/002133.html
cve@mitre.orghttps://bugzilla.redhat.com/show_bug.cgi?id=479655Exploit
af854a3a-2127-422b-91ae-364da2661108http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511517Exploit
af854a3a-2127-422b-91ae-364da2661108http://cvs.fedoraproject.org/viewvc/rpms/libnasl/F-10/libnasl.spec?r1=1.16&r2=1.17
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00000.html
af854a3a-2127-422b-91ae-364da2661108http://openwall.com/lists/oss-security/2009/01/12/4
af854a3a-2127-422b-91ae-364da2661108http://www.attrition.org/pipermail/vim/2009-January/002133.html
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=479655Exploit
Impacted products
Vendor Product Version
finkproject libnasl 2.2.11
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:finkproject:libnasl:2.2.11:*:*:*:*:*:*:*",
              "matchCriteriaId": "E21F62BE-A2DD-4FAB-9745-8BB7B6AF255D",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [
    {
      "sourceIdentifier": "cve@mitre.org",
      "tags": [
        "disputed"
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "NOTE: this issue has been disputed by the upstream vendor. nasl/nasl_crypto2.c in the Nessus Attack Scripting Language library (aka libnasl) 2.2.11 does not properly check the return value from the OpenSSL DSA_do_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.  NOTE: the upstream vendor has disputed this issue, stating \"while we do misuse this function (this is a bug), it has absolutely no security ramification."
    },
    {
      "lang": "es",
      "value": "** DISPUTADA ** NOTA: este problema ha sido disputado por el proveedor de origen. nasl/nasl_crypto2.c en la librer\u00eda Nessus Attack Scripting Language (tambi\u00e9n conocida como libnasl) 2.2.11 no comprueba correctamente el valor de retorno de la funci\u00f3n DSA_do_verify function de OpenSSL, lo que permite a atacantes remotos evadir la validaci\u00f3n de una cadena de certificados a trav\u00e9s de una firma SSL/TLS malformada, una vulnerabilidad similar a CVE-2008-5077. NOTA: el proveedor de origen ha disputado este problema, diciendo que \u0027aunque hacemos un uso indebido de esta funci\u00f3n (se trata de un bug), no tiene ninguna ramificaci\u00f3n de seguridad.\u0027"
    }
  ],
  "id": "CVE-2009-0125",
  "lastModified": "2026-06-16T23:04:18.350",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2009-01-15T17:30:00.547",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit"
      ],
      "url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511517"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://cvs.fedoraproject.org/viewvc/rpms/libnasl/F-10/libnasl.spec?r1=1.16\u0026r2=1.17"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00000.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://openwall.com/lists/oss-security/2009/01/12/4"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.attrition.org/pipermail/vim/2009-January/002133.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=479655"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit"
      ],
      "url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511517"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://cvs.fedoraproject.org/viewvc/rpms/libnasl/F-10/libnasl.spec?r1=1.16\u0026r2=1.17"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00000.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://openwall.com/lists/oss-security/2009/01/12/4"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.attrition.org/pipermail/vim/2009-January/002133.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=479655"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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