CVE-2007-3149

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{"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: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": "2026-06-16T22:41:09.957", "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": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "Local authentication bypass in sudo", "id": "243702", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=243702"}, "csaw": false, "details": ["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.\""], "name": "CVE-2007-3149", "public_date": "2007-06-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2007-3149"], "statement": "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.", "threat_severity": "Important"}

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