CVE-2024-5814 - CVE House
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Status published Medium CVE-2024-5814

Unverifed Ciphersuite used on a client-side TLS1.3 Downgrade

Vulnerability Description

A malicious TLS1.2 server can force a TLS1.3 client with downgrade capability to use a ciphersuite that it did not agree to and achieve a successful connection. This is because, aside from the extensions, the client was skipping fully parsing the server hello. https://doi.org/10.46586/tches.v2024.i1.457-500

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Armin Najafabadi
  • Per Allansson

References

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Affected Vendor

Affected Software

wolfSSL
Vulnerable Versions:
0

Timeline

Official Publish: August 27th, 2024
Last Modified: August 27th, 2024
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.