Authlib is a Python library which builds OAuth and OpenID Connect servers. From version 1.6.5 to before version 1.6.7, previous tests involving passing a malicious JWT containing alg: none and an empty signature was passing the signature verification step without any changes to the application code when a failure was expected.. This issue has been patched in version 1.6.7.
Attack Parameters
Attack Vector
Network
Атака возможна удалённо
Attack Complexity
Low
Легко эксплуатировать
Attack Requirements
None
Нет дополнительных условий
Privileges Required
None
Права не нужны
User Interaction
None
Не нужно действие пользователя
Impact Assessment
Confidentiality
None
Нет утечки данных
Integrity
High
Полная модификация данных
Availability
None
Нет нарушения работы
CVSS Vector v4.0
Weakness Type (CWE)
References 3
https://github.com/authlib/authlib/commit/a61c2acb807496e67f32051b5f1b1d5ccf8f0…
security-advisories@github.com
https://github.com/authlib/authlib/commit/b87c32ed07b8ae7f805873e1c9cafd1016761…
security-advisories@github.com
https://github.com/authlib/authlib/security/advisories/GHSA-7wc2-qxgw-g8gg
security-advisories@github.com