#VU78844 Use of a broken or risky cryptographic algorithm in cjose - CVE-2023-37464
Published: August 1, 2023
Vulnerability identifier: #VU78844
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-37464
CWE-ID: CWE-327
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
cjose
cjose
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to an error in the AES GCM decryption routine that uses the Tag length from the actual Authentication Tag provided in the JWE. A remote attacker can provide a truncated Authentication Tag and to modify the JWE accordingly.
Remediation
Install updates from vendor's website.