#VU78316 Use of a broken or risky cryptographic algorithm in Siemens products - CVE-2023-36749

Vulnerability identifier: #VU78316

Vulnerability risk: Medium

CVSSv4.0: 6.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-36749

CWE-ID: CWE-327

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
RUGGEDCOM ROX MX5000
Hardware solutions / Firmware
RUGGEDCOM ROX MX5000RE
Hardware solutions / Firmware
RUGGEDCOM ROX RX1400
Hardware solutions / Firmware
RUGGEDCOM ROX RX1500
Hardware solutions / Firmware
RUGGEDCOM ROX RX1501
Hardware solutions / Firmware
RUGGEDCOM ROX RX1510
Hardware solutions / Firmware
RUGGEDCOM ROX RX1511
Hardware solutions / Firmware
RUGGEDCOM ROX RX1512
Hardware solutions / Firmware
RUGGEDCOM ROX RX1524
Hardware solutions / Firmware
RUGGEDCOM ROX RX1536
Hardware solutions / Firmware
RUGGEDCOM ROX RX5000
Hardware solutions / Firmware

Vendor: Siemens

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the webserver of the affected devices support insecure TLS 1.0 protocol. A remote attacker can perform a man-in-the-middle attack and compromise confidentiality and integrity of data.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

RUGGEDCOM ROX MX5000: before 2.16.0

RUGGEDCOM ROX MX5000RE: before 2.16.0

RUGGEDCOM ROX RX1400: before 2.16.0

RUGGEDCOM ROX RX1500: before 2.16.0

RUGGEDCOM ROX RX1501: before 2.16.0

RUGGEDCOM ROX RX1510: before 2.16.0

RUGGEDCOM ROX RX1511: before 2.16.0

RUGGEDCOM ROX RX1512: before 2.16.0

RUGGEDCOM ROX RX1524: before 2.16.0

RUGGEDCOM ROX RX1536: before 2.16.0

RUGGEDCOM ROX RX5000: before 2.16.0

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External links
https://cert-portal.siemens.com/productcert/txt/ssa-146325.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.