CVE-2012-6150

samba: pam_winbind fails open when non-existent group specified to require_membership_of

Published Dec 3, 2013 CVSS 2.0 · 3.6 Low EPSS 3.8% KEV · Not listed
Description
The winbind_name_list_to_sid_string_list function in nsswitch/pam_winbind.c in Samba through 4.1.2 handles invalid require_membership_of group names by accepting authentication by any user, which allows remote authenticated users to bypass intended access restrictions in opportunistic circumstances by leveraging an administrator's pam_winbind configuration-file mistake.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2012-6006 The winbind_name_list_to_sid_string_list function in nsswitch/pam_winbind.c in Samba through 4.1.2 handles invalid require_membership_of group names by accepting authentication by any user, which allows remote authenticated users to bypass intended access restrictions in opportunistic circumstances by leveraging an administrator's pam_winbind configuration-file mistake.
Ubuntu USN Ubuntu USN USN-2054-1 Samba vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 6, 2024, 9:28 PM
Reserved
Dec 6, 2012, 12:00 AM
Status
Modified
Published
Dec 3, 2013, 7:55 PM
Modified
Jun 16, 2026, 11:47 PM
Severity
Low
Public date
Jun 12, 2012, 12:00 AM