Unencrypted Communication Vulnerability in SICK DL100 Devices
CVE-2025-27594

7.5HIGH

Key Information:

Vendor
Sick Ag
Status
Sick Dl100-2xxxxxxx
Vendor
CVE Published:
14 March 2025

Summary

The SICK DL100 devices employ an unencrypted proprietary protocol for data transmission and device authentication. This vulnerability allows attackers to intercept the authentication hash used during the login process. With this intercepted information, attackers can perform a pass-the-hash attack, gaining unauthorized access to the device. This poses significant risks as it could lead to the manipulation or disruption of device operations, underscoring the need for enhanced security measures and encryption protocols.

Affected Version(s)

SICK DL100-2xxxxxxx all versions

References

https://sick.com/psirt
x_SICK PSIRT Website
https://cdn.sick.com/media/docs/1/11/411/Special_informat...
x_SICK Operating Guidelines
https://www.cisa.gov/resources-tools/resources/ics-recomm...
x_ICS-CERT recommended practices on Industrial Security

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Leonard Lewedei
.