#VU80912 Observable discrepancy in jose - CVE-2021-29444 

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Main Vulnerability Database Vulnerabilities #VU80912

#VU80912 Observable discrepancy in jose - CVE-2021-29444

Published: September 20, 2023


Vulnerability identifier: #VU80912
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-29444
CWE-ID: CWE-203
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
jose
Software vendor:
Filip Skokan

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to AES_CBC_HMAC_SHA2 Algorithm (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption always execute both HMAC tag verification and CBC decryption, if either failed `JWEDecryptionFailed` would be thrown. A remote attacker can gain unauthorized access to sensitive information on the system.


Remediation

Install updates from vendor's website.

External links