Vulnerability Details : CVE-2018-4851
A vulnerability has been identified in SICLOCK TC100 (All versions) and SICLOCK TC400 (All versions). An attacker with network access to the device could cause a Denial-of-Service condition by sending certain packets to the device, causing potential reboots of the device. The core functionality of the device could be impacted. The time serving functionality recovers when time synchronization with GPS devices or other NTP servers are completed.
Vulnerability category: Input validationDenial of service
Products affected by CVE-2018-4851
- cpe:2.3:o:siemens:siclock_tc400_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:siclock_tc100_firmware:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-4851
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 40 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-4851
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
8.5
|
HIGH | AV:N/AC:L/Au:N/C:N/I:P/A:C |
10.0
|
7.8
|
NIST | |
|
8.2
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
3.9
|
4.2
|
NIST |
CWE ids for CVE-2018-4851
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
-
Assigned by: productcert@siemens.com (Secondary)
References for CVE-2018-4851
-
https://cert-portal.siemens.com/productcert/pdf/ssa-197012.pdf
Mitigation;Vendor Advisory
-
http://www.securityfocus.com/bid/104672
Siemens SICLOCK TC Devices Multiple Security VulnerabilitiesThird Party Advisory;VDB Entry
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