Vulnerability identifier: #VU75054

Vulnerability risk: Low

CVSSv3.1: 7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2023-26286

CWE-ID: CWE-78

Exploitation vector: Local

Exploit availability: Yes

Vulnerable software:
IBM AIX
Operating systems & Components / Operating system
IBM VIOS
Server applications / Application servers

Vendor: IBM Corporation

Description

The vulnerability allows a local user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation in the errlog() syscall functionality in the AIX runtime services library. A local user can execute arbitrary OS commands on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

IBM AIX: 7.1.5 - 7.3.1.2

IBM VIOS: 3.1.2 - 3.1.4.20

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External links
http://www.ibm.com/support/pages/node/6983236

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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. However, proof of concept for this vulnerability is available.