#VU83227 Cleartext transmission of sensitive information in Siemens COMOS - CVE-2023-43503

Vulnerability identifier: #VU83227

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-43503

CWE-ID: CWE-319

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Siemens COMOS
Other software / Other software solutions

Vendor: Siemens

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to software uses insecure communication channel to transmit sensitive information via UDP. A remote user with ability to intercept network traffic can gain access to sensitive data.

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 authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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