FKIE_CVE-2007-3149

Vulnerability from fkie_nvd - Published: 2007-06-11 18:30 - Updated: 2025-04-09 00:30
Severity ?
Summary
sudo, when linked with MIT Kerberos 5 (krb5), does not properly check whether a user can currently authenticate to Kerberos, which allows local users to gain privileges, in a manner unintended by the sudo security model, via certain KRB5_ environment variable settings. NOTE: another researcher disputes this vulnerability, stating that the attacker must be "a user, who can already log into your system, and can already use sudo."
References
cve@mitre.orghttp://secunia.com/advisories/26540
cve@mitre.orghttp://www.securityfocus.com/archive/1/470739/100/0/threaded
cve@mitre.orghttp://www.securityfocus.com/archive/1/470752/100/0/threaded
cve@mitre.orghttp://www.securityfocus.com/archive/1/470774/100/0/threaded
cve@mitre.orghttp://www.securityfocus.com/bid/24368
cve@mitre.orghttp://www.sudo.ws/cgi-bin/cvsweb/sudo/auth/kerb5.c
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/26540
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/470739/100/0/threaded
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/470752/100/0/threaded
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/470774/100/0/threaded
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/24368
af854a3a-2127-422b-91ae-364da2661108http://www.sudo.ws/cgi-bin/cvsweb/sudo/auth/kerb5.c
Impacted products
Vendor Product Version
mit kerberos_5 -
todd_miller sudo 1.6.8_p12
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mit:kerberos_5:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "589D7E39-A243-49F9-8F67-4B9E92AE87DF",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:todd_miller:sudo:1.6.8_p12:*:*:*:*:*:*:*",
              "matchCriteriaId": "31B2C299-5D0B-44DA-91FD-4B1146BE9A7B",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "sudo, when linked with MIT Kerberos 5 (krb5), does not properly check whether a user can currently authenticate to Kerberos, which allows local users to gain privileges, in a manner unintended by the sudo security model, via certain KRB5_ environment variable settings.  NOTE: another researcher disputes this vulnerability, stating that the attacker must be \"a user, who can already log into your system, and can already use sudo.\""
    },
    {
      "lang": "es",
      "value": "sudo, cuando est\u00e1 enlazado con MIT Kerberos 5 (krb5), no comprueba correctamente si un usuario pueda validar actualmente a Kerberos, lo cual permite a usuarios locales ganar privilegios, de una forma involuntario por el modelo de seguridad de sudo, a rtav\u00e9s de ciertas variables de configuraci\u00f3n KRB5_ environment. NOTA: Otro investigados cuestiona esta vulnerabilidad, bas\u00e1ndose en que el atacante debe ser \u201cun usuario, que puede registrarse en tu sistema, y puede utilizar sudo.\u201d"
    }
  ],
  "id": "CVE-2007-3149",
  "lastModified": "2025-04-09T00:30:58.490",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.2,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 10.0,
        "obtainAllPrivilege": true,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2007-06-11T18:30:00.000",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://secunia.com/advisories/26540"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/archive/1/470739/100/0/threaded"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/archive/1/470752/100/0/threaded"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/archive/1/470774/100/0/threaded"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/bid/24368"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.sudo.ws/cgi-bin/cvsweb/sudo/auth/kerb5.c"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://secunia.com/advisories/26540"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/archive/1/470739/100/0/threaded"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/archive/1/470752/100/0/threaded"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/archive/1/470774/100/0/threaded"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/bid/24368"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.sudo.ws/cgi-bin/cvsweb/sudo/auth/kerb5.c"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vendorComments": [
    {
      "comment": "Not vulnerable.  Versions of sudo package shipped with Red Hat Enterprise Linux versions 2.1, 3, 4 and 5 are linked with PAM support and never use libkrb5 authentication.\n",
      "lastModified": "2007-06-11T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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