CVE-2017-11424 - CERT CVE
ID CVE-2017-11424
Sažetak In PyJWT 1.5.0 and below the `invalid_strings` check in `HMACAlgorithm.prepare_key` does not account for all PEM encoded public keys. Specifically, the PKCS1 PEM encoded format would be allowed because it is prefaced with the string `-----BEGIN RSA PUBLIC KEY-----` which is not accounted for. This enables symmetric/asymmetric key confusion attacks against users using the PKCS1 PEM encoded public keys, which would allow an attacker to craft JWTs from scratch.
Reference
CVSS
Base: 5.0
Impact: 2.9
Exploitability:10.0
Pristup
VektorSloženostAutentikacija
NETWORK LOW NONE
Impact
PovjerljivostCjelovitostDostupnost
NONE PARTIAL NONE
CVSS vektor AV:N/AC:L/Au:N/C:N/I:P/A:N
Zadnje važnije ažuriranje 03-10-2019 - 00:03
Objavljeno 24-08-2017 - 16:29