Observable discrepancy in jose - CVE-2021-29444

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU80912

Observable discrepancy in jose - CVE-2021-29444

Published: September 20, 2023


Vulnerability identifier: #VU80912
CSH Severity: Medium
CVSS v4: 8.2 [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]
CVE-ID: CVE-2021-29444
CWE-ID: CWE-203
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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.


Affected software

jose
Cloud Pak for Security (CP4S)
Netcool Operations Insight

How to mitigate CVE-2021-29444

Install updates from vendor's website.

jose - update to 3.11.4
Cloud Pak for Security (CP4S) - update to 1.10.7.0
Netcool Operations Insight - update to 1.6.7

External References

Related Security Bulletins