CVE-2007-3149

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Summary

CVECVE-2007-3149
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2007-06-11 18:30:00 UTC
Updated2026-04-23 00:35:47 UTC
Descriptionsudo, 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."

Risk And Classification

Primary CVSS: v2.0 7.2 from [email protected]

AV:L/AC:L/Au:N/C:C/I:C/A:C

Problem Types: NVD-CWE-Other | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:L/AC:L/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Mit Kerberos 5 - All All All
Application Todd Miller Sudo 1.6.8_p12 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
SecurityFocus af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Todd Miller Sudo Kerberos Authentication Local Authentication Bypass Weakness af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
CVS log for sudo/auth/kerb5.c af854a3a-2127-422b-91ae-364da2661108 www.sudo.ws
Sudo Kerberos 5 Security Bypass Vulnerability - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
SecurityFocus af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
SecurityFocus af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

OrganizationPublishedContributorStatement
Red Hat2007-06-11Mark J CoxNot 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.
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