CVE-2018-16561
"Siemens SIMATIC S7-300 CPU Denial-of-Service Vulnerability"
Description
A vulnerability has been identified in SIMATIC S7-300 CPUs (All versions < V3.X.16). The affected CPUs improperly validate S7 communication packets which could cause a Denial-of-Service condition of the CPU. The CPU will remain in DEFECT mode until manual restart. Successful exploitation requires an attacker to be able to send a specially crafted S7 communication packet to a communication interface of the CPU. This includes Ethernet, PROFIBUS, and Multi Point Interfaces (MPI). No user interaction or privileges are required to exploit the security vulnerability. The vulnerability could allow causing a Denial-of-Service condition of the core functionality of the CPU, compromising the availability of the system. At the time of advisory publication no public exploitation of this security vulnerability was known. Siemens confirms the security vulnerability and provides mitigations to resolve the security issue.
INFO
Published Date :
April 17, 2019, 2:29 p.m.
Last Modified :
Nov. 21, 2024, 3:52 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2018-16561
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-16561.
| URL | Resource |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-306710.pdf | Vendor Advisory |
| https://cert-portal.siemens.com/productcert/pdf/ssa-306710.pdf | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-16561 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-16561 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-306710.pdf -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Oct. 03, 2019
Action Type Old Value New Value Changed CWE CWE-399 CWE-399 NVD-CWE-noinfo -
Initial Analysis by [email protected]
Apr. 19, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://cert-portal.siemens.com/productcert/pdf/ssa-306710.pdf No Types Assigned https://cert-portal.siemens.com/productcert/pdf/ssa-306710.pdf Vendor Advisory Added CWE CWE-399 Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-300_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_s7-300:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-300f_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_s7-300f:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-300fs_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_s7-300fs:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-300t_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_s7-300t:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-16561 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-16561
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.10 }} 0.00%
score
0.40663
percentile