PT-2022-3630 · Unknown · Opc Ua Modicon Communication Module+1

Published 2022-07-12 · Updated 2022-07-27 · CVE-2022-34759

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions X80 advanced RTU Communication Module (BMENOR2200H) version V1.0 OPC UA Modicon Communication Module (BMENUA0100) versions V1.10 and prior

Description A vulnerability exists due to improper parsing of the HTTP Headers, which could cause a denial of service of the webserver. This issue is related to errors in handling HTTP headers. Exploitation of the vulnerability may allow a remote attacker to cause a denial of service.

Recommendations For X80 advanced RTU Communication Module (BMENOR2200H) version V1.0, consider disabling the webserver functionality until a patch is available. For OPC UA Modicon Communication Module (BMENUA0100) versions V1.10 and prior, restrict access to the webserver to minimize the risk of exploitation. As a temporary workaround, consider implementing additional security measures to handle HTTP headers properly until a patch is available.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2022-04415

CVE-2022-34759

Affected Products

Opc Ua Modicon Communication Module

X80 Advanced Rtu Communication Module

References · 6

• https://bdu.fstec.ru/vul/2022-04415 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-34759 · Security Note
• https://download.schneider-electric.com/files?p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2022-193-01_OPC_UA_X80_Advanced_RTU_Modicon_Communication_Modules+_Security_Notification.pdf · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-34759 · Vendor Advisory
• https://download.schneider-electric.com/files?p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2022-193-01_OPC_UA_X80_Advanced_RTU_Modicon_Communication_Modules+_Security_Notification.pdf · Note
• https://t.me/cvenotify/33023 · Telegram Post