CVSS4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
ACTIVE
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/SC:N/VI:N/SI:N/VA:N/SA:N/AU:Y/U:Green/V:D/RE:M
EPSS
Percentile
9.5%
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
[
{
"defaultStatus": "unknown",
"product": "wolfSSL",
"programFiles": [
"src/tls13.c"
],
"repo": "https://github.com/wolfSSL/wolfssl",
"vendor": "wolfSSL",
"versions": [
{
"lessThanOrEqual": "5.7.0",
"status": "affected",
"version": "0",
"versionType": "Release"
}
]
}
]