Vulnerability identifier: #VU87615

Vulnerability risk: Medium

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

CVE-ID: CVE-2023-52428

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Nimbus JOSE+JWT
Universal components / Libraries / Libraries used by multiple products

Vendor:

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper validation of user requests by the PasswordBasedDecrypter (PBKDF2) component. A remote attacker can send a specially crafted request using a large JWE p2c header, trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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External links
http://bitbucket.org/connect2id/nimbus-jose-jwt/issues/526/
http://connect2id.com/products/nimbus-jose-jwt
http://bitbucket.org/connect2id/nimbus-jose-jwt/commits/3b3b77e

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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.