Description
An attacker may access restricted filesystem areas on the device via the CROWN REST interface due to incomplete whitelist enforcement. Certain directories intended for internal testing were not covered by the whitelist and are accessible without authentication. An unauthenticated attacker could place a manipulated parameter file that becomes active after a reboot, allowing modification of critical device settings, including network configuration and application parameters.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| SICK | SICK Lector85x | < 2.8.0 | 2.8.0 |
| SICK | SICK Lector83x | < 2.8.0 | 2.8.0 |
Advisories 1
- SCA-2026-0006 Vulnerabilities affecting SICK Lector85x and SICK Lector83x SICK PSIRT · Mar 6, 2026
References
- https://www.sick.com/psirt
- https://www.sick.com/media/docs/9/19/719/special_information_sick_operating_guidelines_cybersecurity_by_sick_en_im0106719.pdf
- https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
- https://www.first.org/cvss/calculator/3.1
- https://www.sick.com/.well-known/csaf/white/2026/sca-2026-0006.json
- https://www.sick.com/.well-known/csaf/white/2026/sca-2026-0006.pdf vendor-advisory