Main Vulnerability Database Vulnerabilities #VU24176

Cryptographic issues in Nimbus JOSE+JWT - CVE-2017-12973

Published: January 10, 2020

Vulnerability identifier: #VU24176

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2017-12973

CWE-ID: CWE-310

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to conduct a padding oracle attack.

the vulnerability exists due to improper validation of HMAC in authenticated AES-CBC decryption in Nimbus JOSE+JWT. A remote attacker can conduct a padding oracle attack.

Affected software

Nimbus JOSE+JWT
IBM PureData System for Operational Analytics

How to mitigate CVE-2017-12973

Install updates from vendor's website.

Nimbus JOSE+JWT - update to 4.39

External References

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

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