K000132202: PyJWT vulnerability CVE-2017-11424

Security Advisory Description In PyJWT 1.5.0 and below the invalidstrings check in HMACAlgorithm.preparekey 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...

jwtXploiter - A Tool To Test Security Of Json Web Token

A tool to test security of JSON Web Tokens. Test a JWT against all known CVEs; Tamper with the token payload: changes claims and subclaims values. Exploit known vulnerable header claims kid, jku, x5u Verify a token Retrieve the public key of your target's ssl connection and try to use it in a key...

PYSEC-2017-24

In PyJWT 1.5.0 and below the invalidstrings check in HMACAlgorithm.preparekey 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 enable...