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CVE-2007-4138

6.9 · MEDIUM

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 privileg…

Published Sep 14, 2007sambaCWE-264EPSS 0.72%

Overview

CVE-2007-4138 is a medium-severity vulnerability affecting samba samba. It was published on September 14, 2007 and has a CVSS 2.0 base score of 6.9 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 6.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from samba. Update samba to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refdocs.info.apple.com/article.html?artnum=307179Refsecunia.com/advisories/26764Refsecunia.com/advisories/26776Refsecunia.com/advisories/26795Refsecunia.com/advisories/26834Refsecurityreason.com/securityalert/3135Refslackware.com/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.419439Refwww.redhat.com/support/errata/RHSA-2007-1016.htmlRefwww.redhat.com/support/errata/RHSA-2007-1017.htmlRefwww.samba.org/samba/security/CVE-2007-4138.html

How CyberStrike helps

Frequently asked questions

What is CVE-2007-4138?

CVE-2007-4138 is a medium-severity vulnerability affecting samba samba. It was published on September 14, 2007 and has a CVSS 2.0 base score of 6.9 (MEDIUM).

How severe is CVE-2007-4138?

This vulnerability has a CVSS 2.0 base score of 6.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2007-4138?

Check the references section for vendor advisories and patches from samba. Update samba to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2007-4138?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2007-4138 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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