7.5
HIGH
CVE-2021-22786
"Modicon Memory Exposure Information Leak!"
Description
A CWE-200: Information Exposure vulnerability exists that could cause the exposure of sensitive information stored on the memory of the controller when communicating over the Modbus TCP protocol. Affected Products: Modicon M340 CPU (part numbers BMXP34*) (Versions prior to V3.30), Modicon M580 CPU (part numbers BMEP* and BMEH*) (Versions prior to SV3.20), Modicon MC80 (BMKC80) (Versions prior to V1.6), Modicon M580 CPU Safety (part numbers BMEP58*S and BMEH58*S) (All Versions), Modicon Momentum MDI (171CBU*) (Versions prior to V2.3), Legacy Modicon Quantum (All Versions)
INFO
Published Date :
Feb. 1, 2023, 4:15 a.m.
Last Modified :
Feb. 8, 2023, 5:04 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2021-22786
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-2021-22786.
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-2021-22786 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-22786 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]
Feb. 08, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-221-04&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2022-221-04-Modicon_Controllers_Ethernet_Modules_Security_Notification.pdf No Types Assigned https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-221-04&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2022-221-04-Modicon_Controllers_Ethernet_Modules_Security_Notification.pdf Patch, Vendor Advisory Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m340_bmxp341000_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 3.40 OR cpe:2.3:h:schneider-electric:modicon_m340_bmxp341000:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m340_bmxp342000_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 3.40 OR cpe:2.3:h:schneider-electric:modicon_m340_bmxp342000:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m340_bmxp342010_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 3.40 OR cpe:2.3:h:schneider-electric:modicon_m340_bmxp342010:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420102_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 3.40 OR cpe:2.3:h:schneider-electric:modicon_m340_bmxp3420102:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m340_bmxp342020_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 3.40 OR cpe:2.3:h:schneider-electric:modicon_m340_bmxp342020:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m340_bmxp342020h_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 3.40 OR cpe:2.3:h:schneider-electric:modicon_m340_bmxp342020h:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m340_bmxp342030_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 3.40 OR cpe:2.3:h:schneider-electric:modicon_m340_bmxp342030:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420302_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 3.40 OR cpe:2.3:h:schneider-electric:modicon_m340_bmxp3420302:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420302h_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 3.40 OR cpe:2.3:h:schneider-electric:modicon_m340_bmxp3420302h:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m340_bmxp342030h_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 3.40 OR cpe:2.3:h:schneider-electric:modicon_m340_bmxp342030h:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmeh582040_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmeh582040:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmeh582040c_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmeh582040c:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmeh582040s_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmeh582040s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmeh584040_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmeh584040:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmeh584040c_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmeh584040c:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmeh584040s_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmeh584040s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmeh586040_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmeh586040:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmeh586040c_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmeh586040c:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmeh586040s_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmeh586040s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmep581020_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmep581020:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmep581020h_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmep581020h:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmep582020_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmep582020:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmep582020h_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmep582020h:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmep582040_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmep582040:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmep582040h_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmep582040h:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmep582040s_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmep582040s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmep583020_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmep583020:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmep583040_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmep583040:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmep584020_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmep584020:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmep584040_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmep584040:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmep584040s_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmep584040s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmep585040_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmep585040:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmep585040c_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmep585040c:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmep586040_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmep586040:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m580_bmep586040c_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.20 OR cpe:2.3:h:schneider-electric:modicon_m580_bmep586040c:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_momentum_171cbu78090_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.4 OR cpe:2.3:h:schneider-electric:modicon_momentum_171cbu78090:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_momentum_171cbu98090_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.4 OR cpe:2.3:h:schneider-electric:modicon_momentum_171cbu98090:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_momentum_171cbu98091_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.4 OR cpe:2.3:h:schneider-electric:modicon_momentum_171cbu98091:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_mc80_bmkc8020301_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.70 OR cpe:2.3:h:schneider-electric:modicon_mc80_bmkc8020301:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_mc80_bmkc8020310_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.70 OR cpe:2.3:h:schneider-electric:modicon_mc80_bmkc8020310:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_mc80_bmkc8030311_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.70 OR cpe:2.3:h:schneider-electric:modicon_mc80_bmkc8030311:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-22786 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-2021-22786
weaknesses.
CAPEC-13: Subverting Environment Variable Values Subverting Environment Variable Values
CAPEC-22: Exploiting Trust in Client Exploiting Trust in Client
CAPEC-59: Session Credential Falsification through Prediction Session Credential Falsification through Prediction
CAPEC-60: Reusing Session IDs (aka Session Replay) Reusing Session IDs (aka Session Replay)
CAPEC-79: Using Slashes in Alternate Encoding Using Slashes in Alternate Encoding
CAPEC-116: Excavation Excavation
CAPEC-169: Footprinting Footprinting
CAPEC-224: Fingerprinting Fingerprinting
CAPEC-285: ICMP Echo Request Ping ICMP Echo Request Ping
CAPEC-287: TCP SYN Scan TCP SYN Scan
CAPEC-290: Enumerate Mail Exchange (MX) Records Enumerate Mail Exchange (MX) Records
CAPEC-291: DNS Zone Transfers DNS Zone Transfers
CAPEC-292: Host Discovery Host Discovery
CAPEC-293: Traceroute Route Enumeration Traceroute Route Enumeration
CAPEC-294: ICMP Address Mask Request ICMP Address Mask Request
CAPEC-295: Timestamp Request Timestamp Request
CAPEC-296: ICMP Information Request ICMP Information Request
CAPEC-297: TCP ACK Ping TCP ACK Ping
CAPEC-298: UDP Ping UDP Ping
CAPEC-299: TCP SYN Ping TCP SYN Ping
CAPEC-300: Port Scanning Port Scanning
CAPEC-301: TCP Connect Scan TCP Connect Scan
CAPEC-302: TCP FIN Scan TCP FIN Scan
CAPEC-303: TCP Xmas Scan TCP Xmas Scan
CAPEC-304: TCP Null Scan TCP Null Scan
CAPEC-305: TCP ACK Scan TCP ACK Scan
CAPEC-306: TCP Window Scan TCP Window Scan
CAPEC-307: TCP RPC Scan TCP RPC Scan
CAPEC-308: UDP Scan UDP Scan
CAPEC-309: Network Topology Mapping Network Topology Mapping
CAPEC-310: Scanning for Vulnerable Software Scanning for Vulnerable Software
CAPEC-312: Active OS Fingerprinting Active OS Fingerprinting
CAPEC-313: Passive OS Fingerprinting Passive OS Fingerprinting
CAPEC-317: IP ID Sequencing Probe IP ID Sequencing Probe
CAPEC-318: IP 'ID' Echoed Byte-Order Probe IP 'ID' Echoed Byte-Order Probe
CAPEC-319: IP (DF) 'Don't Fragment Bit' Echoing Probe IP (DF) 'Don't Fragment Bit' Echoing Probe
CAPEC-320: TCP Timestamp Probe TCP Timestamp Probe
CAPEC-321: TCP Sequence Number Probe TCP Sequence Number Probe
CAPEC-322: TCP (ISN) Greatest Common Divisor Probe TCP (ISN) Greatest Common Divisor Probe
CAPEC-323: TCP (ISN) Counter Rate Probe TCP (ISN) Counter Rate Probe
CAPEC-324: TCP (ISN) Sequence Predictability Probe TCP (ISN) Sequence Predictability Probe
CAPEC-325: TCP Congestion Control Flag (ECN) Probe TCP Congestion Control Flag (ECN) Probe
CAPEC-326: TCP Initial Window Size Probe TCP Initial Window Size Probe
CAPEC-327: TCP Options Probe TCP Options Probe
CAPEC-328: TCP 'RST' Flag Checksum Probe TCP 'RST' Flag Checksum Probe
CAPEC-329: ICMP Error Message Quoting Probe ICMP Error Message Quoting Probe
CAPEC-330: ICMP Error Message Echoing Integrity Probe ICMP Error Message Echoing Integrity Probe
CAPEC-472: Browser Fingerprinting Browser Fingerprinting
CAPEC-497: File Discovery File Discovery
CAPEC-508: Shoulder Surfing Shoulder Surfing
CAPEC-573: Process Footprinting Process Footprinting
CAPEC-574: Services Footprinting Services Footprinting
CAPEC-575: Account Footprinting Account Footprinting
CAPEC-576: Group Permission Footprinting Group Permission Footprinting
CAPEC-577: Owner Footprinting Owner Footprinting
CAPEC-616: Establish Rogue Location Establish Rogue Location
CAPEC-643: Identify Shared Files/Directories on System Identify Shared Files/Directories on System
CAPEC-646: Peripheral Footprinting Peripheral Footprinting
CAPEC-651: Eavesdropping Eavesdropping
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.15 }} 0.00%
score
0.51885
percentile
CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability