#VU89911 Untrusted search path in Phoenix Contact GmbH products - CVE-2024-28133

Vulnerability identifier: #VU89911

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-28133

CWE-ID: CWE-426

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
CHARX SEC-3000
Hardware solutions / Firmware
CHARX SEC-3050
Hardware solutions / Firmware
CHARX SEC-3100
Hardware solutions / Firmware
CHARX SEC-3150
Hardware solutions / Firmware

Vendor: Phoenix Contact GmbH

Description

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

The vulnerability exists due to usage of an untrusted search path within the charx_set_timezone binary in the CHARX system utility. A local user can place a malicious binary into a specific location on the system and execute arbitrary code with escalated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

CHARX SEC-3000: 1.5.1

CHARX SEC-3050: 1.5.1

CHARX SEC-3100: 1.5.1

CHARX SEC-3150: 1.5.1

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External links
https://cert.vde.com/en/advisories/VDE-2024-019
https://www.zerodayinitiative.com/advisories/ZDI-24-519/

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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.