Denial of service in JOSE

1) Resource exhaustion

EUVDB-ID: #VU69615

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-36083

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to the way application handles untrusted JWE tokens A remote attacker can trigger pass the PBKDF2-based JWE key with an extremely high PBES2 Count value and consume significant amount of CPU time, resulting in a denial of service conditions.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

jose: 1.0.0 - 4.9.1

External links

http://github.com/panva/jose/security/advisories/GHSA-jv3g-j58f-9mq9
http://github.com/panva/jose/commit/03d6d013bf6e070e85adfe5731f526978e3e8e4d
http://github.com/panva/jose/releases/tag/v4.9.2

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.