Vulnerability identifier: #VU97578

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-51774

CWE-ID: CWE-254

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
json-jwt
Other software / Other software solutions

Vendor: Nov Matake (nov)

Description

The vulnerability allows a remote attacker to bypass identity checks via a sign/encryption confusion attack.

The vulnerability exists due to sign/encryption confusion. A remote attacker can bypass identity checks via a sign/encryption confusion attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

json-jwt: 1.16.3

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External links
http://github.com/P3ngu1nW/CVE_Request/blob/main/novjson-jwt.md

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.