Security Bulletin: IBM i is vulnerable to a local privilege escalation (CVE-2023-40375).

Summary

IBM i is vulnerable to a local privilege escalation due to a flaw in the base operating system code related to the Integrated application server for IBM i as described in the vulnerability details section. The vulnerability exists even when the Integrated application server is not configured or active on the system. IBM i has addressed the vulnerability with a fix as described in the remediation/fixes section.

Vulnerability Details

CVEID:CVE-2023-40375
**DESCRIPTION:**Integrated application server for IBM i contains a local privilege escalation vulnerability. A malicious actor with command line access to the host operating system can elevate privileges to gain root access to the host operating system.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/263580 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Remediation/Fixes

The issue can be fixed by applying a PTF to IBM i. IBM i releases 7.5, 7.4, 7.3, and 7.2 will be fixed.

The IBM i PTF number for 5770-SS1 contains the fix for the vulnerability.

<https://www.ibm.com/support/fixcentral&gt;

Important note: IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products.

Workarounds and Mitigations

None