CVEs-PoC/2017/CVE-2017-12973.md

CVE-2017-12973

Description

Nimbus JOSE+JWT before 4.39 proceeds improperly after detection of an invalid HMAC in authenticated AES-CBC decryption, which allows attackers to conduct a padding oracle attack.

POC

Reference

• https://bitbucket.org/connect2id/nimbus-jose-jwt/commits/6a29f10f723f406eb25555f55842c59a43a38912
• https://bitbucket.org/connect2id/nimbus-jose-jwt/issues/223/aescbc-return-immediately-on-invalid-hmac
• https://bitbucket.org/connect2id/nimbus-jose-jwt/src/master/CHANGELOG.txt

Github

No PoCs found on GitHub currently.