python-jose through 3.5.0 Algorithm Confusion via DER-encoded Public Key as HMAC Secret
28Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 9.3epss 0.2%
probabilidad de explotación
0.2%top 87% de las CVE
explotación observada
noninguna fuente lo reporta
python-jose through 3.5.0 fails to properly validate asymmetric keys in HMAC initialization, accepting DER-encoded public keys that lack PEM armor or SSH prefixes. Attackers holding the service's public key can forge HS256 tokens that pass verification when algorithms are not explicitly restricted. This is an incomplete fix for CVE-2024-33663.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Productos afectados
mpdavis · python-joseReferencias
https://github.com/advisories/GHSA-6c5p-j8vq-pqhjhttps://github.com/mpdavis/python-josehttps://github.com/mpdavis/python-jose/blob/018b310ddb8b50dcfd09a0c152117835a21dd656/jose/backends/native.pyhttps://github.com/mpdavis/python-jose/blob/018b310ddb8b50dcfd09a0c152117835a21dd656/jose/utils.pyhttps://github.com/mpdavis/python-jose/issues/414https://www.vulncheck.com/advisories/python-jose-through-3.5.0-algorithm-confusion-via-der-encoded-public-key-as-hmac-secret