PT-2020-6316 · Schneider Electric · Ecostruxure Control Expert

Published 2020-11-19 · Updated 2022-01-31 · CVE-2020-28211

Positive Technologies (AI Summary)

CVSS v2.0

6.6

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions EcoStruxure Control Expert (all versions)

Description A vulnerability exists in the PLC Simulator of EcoStruxure Control Expert that could cause bypass of authentication when overwriting memory using a debugger. This issue is related to incorrect authorization.

Recommendations For all versions, consider disabling the debugger functionality as a temporary workaround to minimize the risk of exploitation until a patch is available. Restrict access to the PLC Simulator to minimize the risk of unauthorized access.

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

BDU:2021-04172

CVE-2020-28211

Affected Products

Ecostruxure Control Expert

References · 7

• https://se.com/ww/en/download/document/SEVD-2020-315-07 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-28211 · Security Note
• https://bdu.fstec.ru/vul/2021-04172 · Security Note
• https://t.me/cvenotify/5838 · Telegram Post
• https://download.schneider-electric.com/files?p_enDocType=Technical+leaflet&p_File_Name=SEVD-2020-315-07_PLC_Simulator_on_EcoStruxure%E2%84%A2_Control_Expert_and_Process_Expert_Security_Notification_V3.1.pdf&p_Doc_Ref=SEVD-2020-315-07 · Note
• https://t.me/cvenotify/5888 · Telegram Post
• https://download.schneider-electric.com/files?p_enDocType=Technical+leaflet&p_File_Name=SEVD-2020-315-07_PLC_Simulator_on_EcoStruxure%E2%84%A2_Control_Expert_and_Process_Expert_Security_Notification_V3.1.pdf&p_Doc_Ref=SEVD-2020-315-07 · Note