CVE-2007-4138

Severity: medium (CVSS 6.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2007-09-14 · updated 2026-06-16
Weakness: CWE-264

Description

The Winbind nss_info extension (nsswitch/idmap_ad.c) in idmap_ad.so in Samba 3.0.25 through 3.0.25c, when the "winbind nss info" option is set to rfc2307 or sfu, grants all local users the privileges of gid 0 when the (1) RFC2307 or (2) Services for UNIX (SFU) primary group attribute is not defined.

Affected products

Samba: 3.0.25, 3.0.25a, 3.0.25b, 3.0.25c

References

http://docs.info.apple.com/article.html?artnum=307179
http://secunia.com/advisories/26764
http://secunia.com/advisories/26776
http://secunia.com/advisories/26795
http://secunia.com/advisories/26834
http://securityreason.com/securityalert/3135
http://slackware.com/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.419439
http://www.redhat.com/support/errata/RHSA-2007-1016.html
http://www.redhat.com/support/errata/RHSA-2007-1017.html
http://www.samba.org/samba/security/CVE-2007-4138.html
http://www.securityfocus.com/archive/1/479078/100/0/threaded
http://www.securityfocus.com/bid/25636

Get alerted when CVE-2007-4138 or the next vulnerability affects your stack