What’s Vulnerable › Vulnerabilities
CVE-2023-4420
- Severity: high (CVSS 7.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2023-08-24 · updated 2026-06-17
- Weakness: CWE-311
Description
A remote unprivileged attacker can intercept the communication via e.g. Man-In-The-Middle, due to the absence of Transport Layer Security (TLS) in the SICK LMS5xx. This lack of encryption in the communication channel can lead to the unauthorized disclosure of sensitive information. The attacker can exploit this weakness to eavesdrop on the communication between the LMS5xx and the Client, and potentially manipulate the data being transmitted.
Affected products
- SICK Lms500 Firmware: all versions
- SICK Lms511 Firmware: all versions
- SICK Lms531 Firmware: all versions
References
- https://sick.com/.well-known/csaf/white/2023/sca-2023-0007.json
- https://sick.com/.well-known/csaf/white/2023/sca-2023-0007.pdf
- https://sick.com/psirt
- https://sick.com/.well-known/csaf/white/2023/sca-2023-0007.json
- https://sick.com/.well-known/csaf/white/2023/sca-2023-0007.pdf
- https://sick.com/psirt
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