Auth bypass in Siemens Siclock Tc100
CVE-2018-4856
A vulnerability has been identified in SICLOCK TC100 (All versions) and SICLOCK TC400 (All versions). An attacker with administrative access to the device's management interface could lock out legitimate users. Manual interaction is required to restore the access of legitimate users.
Vulnerability class: Broken Authentication
EPSS: 0.013 (67.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Siemens Siclock_tc100
- Siemens Siclock_tc100_firmware
- Siemens Siclock_tc400
- Siemens Siclock_tc400_firmware
- Siemens Ag Siclock Tc100, Tc400 — versions SICLOCK TC100 : All versions, SICLOCK TC400 : All versions
Weakness classification (CWE)
References
- productcert@siemens.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- productcert@siemens.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2018-4856?
- CVE-2018-4856 is a medium-severity vulnerability in Siemens Siclock Tc100, classified under Improper Authentication. CVSS score: 4.9/10. Published 2018-07-03.
- How severe is CVE-2018-4856?
- Medium severity. CVSS v3 base score is 4.9 out of 10.