CVE-2019-6841
Modicon PLC Denial of Service Throwaway Firmware Upgrade Exception
Description
A CWE-755: Improper Handling of Exceptional Conditions vulnerability exists in Modicon M580 with firmware (version prior to V3.10), Modicon M340 (all firmware versions), and Modicon BMxCRA and 140CRA modules (all firmware versions), which could cause a Denial of Service attack on the PLC when upgrading the firmware with no firmware image inside the package using FTP protocol.
INFO
Published Date :
Oct. 29, 2019, 7:15 p.m.
Last Modified :
Feb. 3, 2022, 4 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
1.2
Affected Products
The following products are affected by CVE-2019-6841
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-2019-6841.
| URL | Resource |
|---|---|
| https://www.se.com/ww/en/download/document/SEVD-2019-281-02/ | 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-2019-6841 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-6841 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 -
Reanalysis by [email protected]
Feb. 03, 2022
Action Type Old Value New Value Changed CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m340_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:se:modicon_m340:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:schneider-electric:modicon_m340_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:schneider-electric:modicon_m340:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jan. 31, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:modicon_m340:-:*:*:*:*:*:*:* OR *cpe:2.3:h:se:modicon_m340:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jan. 31, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:se:modicon_m340:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m340:-:*:*:*:*:*:*:* -
Modified Analysis by [email protected]
Sep. 14, 2021
Action Type Old Value New Value Changed Reference Type https://www.se.com/ww/en/download/document/SEVD-2019-281-02/ No Types Assigned https://www.se.com/ww/en/download/document/SEVD-2019-281-02/ Vendor Advisory -
CPE Deprecation Remap by [email protected]
Aug. 19, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:modicon_m340:-:*:*:*:*:*:*:* OR *cpe:2.3:h:se:modicon_m340:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 19, 2021
Action Type Old Value New Value Changed Description A CWE-248: Uncaught Exception vulnerability exists in Modicon M580, Modicon M340, Modicon BMxCRA and 140CRA modules (all firmware versions), which could cause a Denial of Service attack on the PLC when upgrading the firmware with no firmware image inside the package using FTP protocol. A CWE-755: Improper Handling of Exceptional Conditions vulnerability exists in Modicon M580 with firmware (version prior to V3.10), Modicon M340 (all firmware versions), and Modicon BMxCRA and 140CRA modules (all firmware versions), which could cause a Denial of Service attack on the PLC when upgrading the firmware with no firmware image inside the package using FTP protocol. Removed Reference https://www.schneider-electric.com/ww/en/download/document/SEVD-2019-281-02 [Vendor Advisory] Added Reference https://www.se.com/ww/en/download/document/SEVD-2019-281-02/ [No Types Assigned] Removed CWE Schneider Electric SE CWE-248 Added CWE Schneider Electric SE CWE-755 Removed CWE Reason CWE-248 / Assessment performed prior to CVMAP efforts -
Initial Analysis by [email protected]
Nov. 01, 2019
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://www.schneider-electric.com/ww/en/download/document/SEVD-2019-281-02 No Types Assigned https://www.schneider-electric.com/ww/en/download/document/SEVD-2019-281-02 Vendor Advisory Added CWE NIST CWE-755 Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:schneider-electric:modicon_m580:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m340_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:schneider-electric:modicon_m340:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_bmxcra_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:schneider-electric:modicon_bmxcra:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_140cra_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:schneider-electric:modicon_140cra:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-6841 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-2019-6841
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.08 }} 0.00%
score
0.33067
percentile