Denial of service in IBM Event Streams

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 update from vendor's website.

Vulnerable software versions

Event Streams: 10.0.0 - 11.0.3

External links

http://www.ibm.com/blogs/psirt/security-bulletin-vulnerability-in-the-node-js-jose-module-affects-ibm-event-streams-cve-2022-36083/
http://www.ibm.com/support/pages/node/6825541

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.