Medium severity · published Aug 27, 2024
CVE-2024-5814
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
5.3
CVSS
0.5%
EPSS
No
On KEV
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
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WO
Wolfssl · Wolfssl
through 5.7.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-5814
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-5814
Release Notes
https://github.com/wolfSSL/wolfssl/blob/master/ChangeLog.md#add_later
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