Improper HMAC Handling in Nimbus JOSE+JWT Makes it Vulnerable to Oracle Attacks
CVE-2017-12973
3.1LOW
What is CVE-2017-12973?
Nimbus JOSE+JWT prior to version 4.39 has a vulnerability where it fails to properly handle an invalid HMAC during AES-CBC decryption. This mismanagement can lead to a padding oracle attack, allowing adversaries to compromise encrypted data by taking advantage of the timing discrepancies in the decryption process. Proper security measures should be implemented to mitigate this risk.
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References
CVSS V3.1
Score:
3.1
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged
Timeline
Vulnerability Reserved
Vulnerability published