Privilege escalation in IBM i Facsimile Support

1) Exposed dangerous method or function

EUVDB-ID: #VU84775

Risk: Low

CVSSv4.0: 5.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-43064

CWE-ID: CWE-749 - Exposed Dangerous Method or Function

Exploit availability: No

Description

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

The vulnerability exists due to improper access restrictions. A local user can execute arbitrary code on the system with the privilege of the user invoking the facsimile support.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

IBM i: 7.2 - 7.5

CPE2.3

• cpe:2.3:o:ibm_corporation:ibm_i:7.2:*:*:*:*:*:*:*
• cpe:2.3:o:ibm_corporation:ibm_i:7.3:*:*:*:*:*:*:*
• cpe:2.3:o:ibm_corporation:ibm_i:7.4:*:*:*:*:*:*:*

External links

https://www.ibm.com/support/pages/node/7101330
https://exchange.xforce.ibmcloud.com/vulnerabilities/267689

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.