Privilege escalation in IBM i Access Client Solutions

1) Untrusted search path

EUVDB-ID: #VU69508

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-40746

CWE-ID: CWE-426 - Untrusted Search Path

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insecure search path when loading .dll files. A local user can place a specially crafted .dll file in the current working application directory and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

IBM i Access Client Solutions: before 1.1.9.1

External links

http://exchange.xforce.ibmcloud.com/vulnerabilities/236581
http://www.ibm.com/support/pages/node/6840359

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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