#VU83228 Buffer overflow in Siemens COMOS - CVE-2023-43504

Vulnerability identifier: #VU83228

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-43504

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Siemens COMOS
Other software / Other software solutions

Vendor: Siemens

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the Ptmcast executable. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Siemens COMOS: before 10.4.4

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External links
https://cert-portal.siemens.com/productcert/txt/ssa-137900.txt

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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