CVE-2020-16850
Mitsubishi MELSEC iQ-R Series PLCs Denial of Service: Unauthenticated Firmware Validation Bypass
Description
Mitsubishi MELSEC iQ-R Series PLCs with firmware 49 allow an unauthenticated attacker to halt the industrial process by sending a crafted packet over the network. This denial of service attack exposes Improper Input Validation. After halting, physical access to the PLC is required in order to restore production, and the device state is lost. This is related to R04CPU, RJ71GF11-T2, R04CPU, and RJ71GF11-T2.
INFO
Published Date :
Nov. 30, 2020, 10:15 p.m.
Last Modified :
Nov. 21, 2024, 5:07 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2020-16850 has a 1 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-2020-16850
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-2020-16850
.
URL | Resource |
---|---|
https://blog.scadafence.com/vulnerability-in-mitsubishi-electric-melsec-iq-r-series | Third Party Advisory |
https://us-cert.cisa.gov/ics/advisories/icsa-20-282-02 | Third Party Advisory US Government Resource |
https://blog.scadafence.com/vulnerability-in-mitsubishi-electric-melsec-iq-r-series | Third Party Advisory |
https://us-cert.cisa.gov/ics/advisories/icsa-20-282-02 | Third Party Advisory US Government Resource |
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).
blogs, CVEs, and other publications
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-16850
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-16850
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://blog.scadafence.com/vulnerability-in-mitsubishi-electric-melsec-iq-r-series Added Reference https://us-cert.cisa.gov/ics/advisories/icsa-20-282-02 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-400 CWE-20 CWE-400 -
Initial Analysis by [email protected]
Dec. 04, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://blog.scadafence.com/vulnerability-in-mitsubishi-electric-melsec-iq-r-series No Types Assigned https://blog.scadafence.com/vulnerability-in-mitsubishi-electric-melsec-iq-r-series Third Party Advisory Changed Reference Type https://us-cert.cisa.gov/ics/advisories/icsa-20-282-02 No Types Assigned https://us-cert.cisa.gov/ics/advisories/icsa-20-282-02 Third Party Advisory, US Government Resource Added CWE NIST CWE-400 Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r00cpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 20 OR cpe:2.3:h:mitsubishielectric:r00cpu:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r01cpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 20 OR cpe:2.3:h:mitsubishielectric:r01cpu:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r02cpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 20 OR cpe:2.3:h:mitsubishielectric:r02cpu:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r04cpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 52 OR cpe:2.3:h:mitsubishielectric:r04cpu:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r08cpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 52 OR cpe:2.3:h:mitsubishielectric:r08cpu:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r16cpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 52 OR cpe:2.3:h:mitsubishielectric:r16cpu:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r32cpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 52 OR cpe:2.3:h:mitsubishielectric:r32cpu:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r120cpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 52 OR cpe:2.3:h:mitsubishielectric:r120cpu:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r08sfcpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 22 OR cpe:2.3:h:mitsubishielectric:r08sfcpu:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r16sfcpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 22 OR cpe:2.3:h:mitsubishielectric:r16sfcpu:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r32sfcpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 22 OR cpe:2.3:h:mitsubishielectric:r32sfcpu:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r120sfcpu_firmware:*:*:*:*:*:*:*:* versions up to (including) 22 OR cpe:2.3:h:mitsubishielectric:r120sfcpu:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r08pcpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:r08pcpu:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r16pcpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:r16pcpu:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r32pcpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:r32pcpu:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r120pcpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:r120pcpu:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r16mtcpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:r16mtcpu:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r32mtcpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:r32mtcpu:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:r64mtcpu_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:r64mtcpu:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-16850
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-2020-16850
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.09 }} -0.02%
score
0.41014
percentile