CVE-2020-15957

An issue was discovered in DP3T-Backend-SDK before 1.1.1 for Decentralised Privacy-Preserving Proximity Tracing (DP3T). When it is configured to check JWT before uploading/publishing keys, it is possible to skip the signature check by providing a JWT token with alg=none.

An issue was discovered in DP3T-Backend-SDK before 1.1.1 for Decentralised Privacy-Preserving Proximity Tracing (DP3T). When it is configured to check JWT before uploading/publishing keys, it is possible to skip the signature check by providing a JWT token with alg=none.

Se detectó un problema en DP3T-Backend-SDK versiones anteriores a 1.1.1, para el Decentralised Privacy-Preserving Proximity Tracing (DP3T). Cuando es configurado para comprobar JWT antes de cargar y publicar claves, es posible omitir la comprobación de firma al proporcionar un token JWT con alg=none