CVE-2018-4852

CRITICAL

SICLOCK TC100 and TC400 - Authentication Bypass via Device-Specific Knowledge

Title source: llm

Description

A vulnerability has been identified in SICLOCK TC100 (All versions) and SICLOCK TC400 (All versions). An attacker with network access to the device could potentially circumvent the authentication mechanism if he/she is able to obtain certain knowledge specific to the attacked device.

References (2)

Core 2

Core References

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/104672

Mitigation, Vendor Advisory x_refsource_confirm

https://cert-portal.siemens.com/productcert/pdf/ssa-197012.pdf

Scores

CVSS v3 9.8

EPSS 0.0161

EPSS Percentile 82.0%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-287 CWE-288

Status published

Products (2)

siemens/siclock_tc100_firmware

siemens/siclock_tc400_firmware

Published Jul 03, 2018

Tracked Since Feb 18, 2026