CVE-2021-22789
"Modicon Buffer Overflow Allows Denial of Service"
Description
A CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability that could cause a Denial of Service on the Modicon PLC controller / simulator when updating the controller application with a specially crafted project file exists in Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for EcoStruxureª Control Expert, including all Unity Pro versions (former name of EcoStruxureª Control Expert, all versions), PLC Simulator for EcoStruxureª Process Expert including all HDCS versions (former name of EcoStruxureª Process Expert, all versions), Modicon Quantum CPU (part numbers 140CPU*, all versions), Modicon Premium CPU (part numbers TSXP5*, all versions).
INFO
Published Date :
Sept. 2, 2021, 5:15 p.m.
Last Modified :
Sept. 13, 2021, 6:35 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2021-22789
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-2021-22789.
| URL | Resource |
|---|---|
| https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-222-04 | Patch 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-2021-22789 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-22789 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 -
Initial Analysis by [email protected]
Sep. 13, 2021
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:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-222-04 No Types Assigned https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-222-04 Patch, Vendor Advisory Added CPE Configuration OR *cpe:2.3:h:schneider-electric:modicon_m340_bmxp341000:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m340_bmxp342010:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m340_bmxp342020:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m340_bmxp342030:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmeh582040:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmeh582040c:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmeh582040s:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmeh584040:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmeh584040c:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmeh584040s:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmeh586040:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmeh586040c:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmeh586040s:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmep581020:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmep581020h:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmep582020:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmep582020h:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmep582040:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmep582040h:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmep582040s:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmep583020:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmep583040:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmep584020:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmep584040:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmep584040s:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmep585040:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmep585040c:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmep586040:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_m580_bmep586040c:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_mc80_bmkc8020301:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_mc80_bmkc8020310:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_mc80_bmkc8030311:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_momentum_171cbu78090:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_momentum_171cbu98090:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_momentum_171cbu98091:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_1634m:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_2634m:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_2834m:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_454m:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_4634m:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_554m:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_5634m:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_6634m:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_quantum_140cpu65150:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_quantum_140cpu65150c:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_quantum_140cpu65160:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:modicon_quantum_140cpu65160c:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:plc_simulator_for_ecostruxure_control_expert:-:*:*:*:*:*:*:* *cpe:2.3:h:schneider-electric:plc_simulator_for_ecostruxure_process_expert:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-22789 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-2021-22789
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.08 }} 0.01%
score
0.33135
percentile