Improper validation of certificate with host mismatch in IBM i

1) Improper validation of certificate with host mismatch

EUVDB-ID: #VU75686

Risk: Low

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

CVE-ID: CVE-2022-39161

CWE-ID: CWE-297 - Improper Validation of Certificate with Host Mismatch

Exploit availability: No

Description

The vulnerability allows a remote user to perform MitM attack.

The vulnerability exists due to improper certificate validation issued by a trusted CA when configured to communicate with the Web Server Plug-ins for IBM WebSphere Application Server. A remote user can perform a man-in-the-middle (MitM) attack and gain access to sensitive information.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM i: 7.3 - 7.5

External links

http://www.ibm.com/support/pages/node/7056678

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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