CVE-2019-13945
Siemens SIMATIC S7-1200/200 SMART CPU Family UART Boot Process Access Vulnerability
Description
A vulnerability has been identified in SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-1200 CPU family < V4.x (incl. SIPLUS variants) (All versions), SIMATIC S7-1200 CPU family V4.x (incl. SIPLUS variants) (All versions with Function State (FS) < 11), SIMATIC S7-200 SMART CPU CR20s (6ES7 288-1CR20-0AA1) (All versions <= V2.3.0 and Function State (FS) <= 3), SIMATIC S7-200 SMART CPU CR30s (6ES7 288-1CR30-0AA1) (All versions <= V2.3.0 and Function State (FS) <= 3), SIMATIC S7-200 SMART CPU CR40 (6ES7 288-1CR40-0AA0) (All versions <= V2.2.2 and Function State (FS) <= 8), SIMATIC S7-200 SMART CPU CR40s (6ES7 288-1CR40-0AA1) (All versions <= V2.3.0 and Function State (FS) <= 3), SIMATIC S7-200 SMART CPU CR60 (6ES7 288-1CR60-0AA0) (All versions <= V2.2.2 and Function State (FS) <= 10), SIMATIC S7-200 SMART CPU CR60s (6ES7 288-1CR60-0AA1) (All versions <= V2.3.0 and Function State (FS) <= 3), SIMATIC S7-200 SMART CPU SR20 (6ES7 288-1SR20-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 11), SIMATIC S7-200 SMART CPU SR30 (6ES7 288-1SR30-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 10), SIMATIC S7-200 SMART CPU SR40 (6ES7 288-1SR40-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 10), SIMATIC S7-200 SMART CPU SR60 (6ES7 288-1SR60-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 12), SIMATIC S7-200 SMART CPU ST20 (6ES7 288-1ST20-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 9), SIMATIC S7-200 SMART CPU ST30 (6ES7 288-1ST30-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 9), SIMATIC S7-200 SMART CPU ST40 (6ES7 288-1ST40-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 8), SIMATIC S7-200 SMART CPU ST60 (6ES7 288-1ST60-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 8), SIMATIC S7-200 SMART CPU family (All versions). There is an access mode used during manufacturing of the affected devices that allows additional diagnostic functionality. The security vulnerability could be exploited by an attacker with physical access to the UART interface during boot process.
INFO
Published Date :
Dec. 12, 2019, 2:15 p.m.
Last Modified :
Oct. 9, 2020, 1:35 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
0.9
Public PoC/Exploit Available at Github
CVE-2019-13945 has a 2 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2019-13945
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-2019-13945.
| URL | Resource |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-686531.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).
Siemens SIMATIC vulnerabilities
Client utility for Siemens S7 bootloader special access feature
Python Shell Makefile C Assembly
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-13945 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-13945 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 [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Oct. 09, 2020
Action Type Old Value New Value Removed CWE NIST CWE-20 Added CWE NIST NVD-CWE-Other Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-200_smart_cpu_st20_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.5.0 OR cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st20:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-200_smart_cpu_st30_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.5.0 OR cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st30:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-200_smart_cpu_st40_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.5.0 OR cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st40:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-200_smart_cpu_st60_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.5.0 OR cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st60:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-200_smart_cpu_sr20_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.5.0 OR cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr20:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-200_smart_cpu_sr30_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.5.0 OR cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr30:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-200_smart_cpu_sr40_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.5.0 OR cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr40:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-200_smart_cpu_sr60_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.5.0 OR cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr60:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-200_smart_cpu_cr40_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.2.2 OR cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr40:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-200_smart_cpu_cr60_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.2.2 OR cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr60:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-200_smart_cpu_cr20s_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.3.0 OR cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr20s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-200_smart_cpu_cr30s_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.3.0 OR cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr30s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-200_smart_cpu_cr40s_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.3.0 OR cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr40s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-200_smart_cpu_cr60s_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.3.0 OR cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr60s:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 14, 2020
Action Type Old Value New Value Changed Description A vulnerability has been identified in SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-200 SMART CPU family (All versions). There is an access mode used during manufacturing of S7-1200 CPUs that allows additional diagnostic functionality. The security vulnerability could be exploited by an attacker with physical access to the UART interface during boot process. At the time of advisory publication no public exploitation of this security vulnerability was known. A vulnerability has been identified in SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-1200 CPU family < V4.x (incl. SIPLUS variants) (All versions), SIMATIC S7-1200 CPU family V4.x (incl. SIPLUS variants) (All versions with Function State (FS) < 11), SIMATIC S7-200 SMART CPU CR20s (6ES7 288-1CR20-0AA1) (All versions <= V2.3.0 and Function State (FS) <= 3), SIMATIC S7-200 SMART CPU CR30s (6ES7 288-1CR30-0AA1) (All versions <= V2.3.0 and Function State (FS) <= 3), SIMATIC S7-200 SMART CPU CR40 (6ES7 288-1CR40-0AA0) (All versions <= V2.2.2 and Function State (FS) <= 8), SIMATIC S7-200 SMART CPU CR40s (6ES7 288-1CR40-0AA1) (All versions <= V2.3.0 and Function State (FS) <= 3), SIMATIC S7-200 SMART CPU CR60 (6ES7 288-1CR60-0AA0) (All versions <= V2.2.2 and Function State (FS) <= 10), SIMATIC S7-200 SMART CPU CR60s (6ES7 288-1CR60-0AA1) (All versions <= V2.3.0 and Function State (FS) <= 3), SIMATIC S7-200 SMART CPU SR20 (6ES7 288-1SR20-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 11), SIMATIC S7-200 SMART CPU SR30 (6ES7 288-1SR30-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 10), SIMATIC S7-200 SMART CPU SR40 (6ES7 288-1SR40-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 10), SIMATIC S7-200 SMART CPU SR60 (6ES7 288-1SR60-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 12), SIMATIC S7-200 SMART CPU ST20 (6ES7 288-1ST20-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 9), SIMATIC S7-200 SMART CPU ST30 (6ES7 288-1ST30-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 9), SIMATIC S7-200 SMART CPU ST40 (6ES7 288-1ST40-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 8), SIMATIC S7-200 SMART CPU ST60 (6ES7 288-1ST60-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 8), SIMATIC S7-200 SMART CPU family (All versions). There is an access mode used during manufacturing of the affected devices that allows additional diagnostic functionality. The security vulnerability could be exploited by an attacker with physical access to the UART interface during boot process. -
Initial Analysis by [email protected]
Dec. 19, 2019
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://cert-portal.siemens.com/productcert/pdf/ssa-686531.pdf No Types Assigned https://cert-portal.siemens.com/productcert/pdf/ssa-686531.pdf Vendor Advisory Added CWE NIST CWE-20 Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_s7-1200_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_s7-1200:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:s7-200_smart_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:s7-200_smart:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Dec. 12, 2019
Action Type Old Value New Value Changed Description A vulnerability has been identified in SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-200 SMART CPU family (All versions). There is an access mode used during manufacturing of S7-1200 CPUs that allows additional diagnostic functionality. The security vulnerability could be exploited by an attacker with physical access to the UART interface during boot process. At the time of advisory publication no public exploitation of this security vulnerability was known. A vulnerability has been identified in SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-200 SMART CPU family (All versions). There is an access mode used during manufacturing of S7-1200 CPUs that allows additional diagnostic functionality. The security vulnerability could be exploited by an attacker with physical access to the UART interface during boot process. At the time of advisory publication no public exploitation of this security vulnerability was known. -
CVE Modified by [email protected]
Dec. 12, 2019
Action Type Old Value New Value Changed Description A vulnerability has been identified in S7-1200 CPU (All versions). There is an access mode used during manufacturing of S7-1200 CPUs that allows additional diagnostic functionality. The security vulnerability could be exploited by an attacker with physical access to the UART interface during boot process. At the time of advisory publication no public exploitation of this security vulnerability was known. A vulnerability has been identified in SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-200 SMART CPU family (All versions). There is an access mode used during manufacturing of S7-1200 CPUs that allows additional diagnostic functionality. The security vulnerability could be exploited by an attacker with physical access to the UART interface during boot process. At the time of advisory publication no public exploitation of this security vulnerability was known.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-13945 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-2019-13945
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.00%
score
0.23680
percentile