Authentication Bypass Vulnerability in Samba's winbind_name_list_to_sid_string_list Function

CVE-2012-6150 · LOW Severity

AV:N/AC:H/AU:S/C:P/I:P/A:N

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.

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