PT-2020-5918 · Schneider Electric · Modicon M218 Logic Controller

Published 2020-06-16 · Updated 2022-01-31 · CVE-2020-7502

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: Modicon M218 Logic Controller versions 4.3 and prior

Description: A vulnerability exists in the implementation of the TCP/IP protocol stack in the Modicon M218 Logic Controller, related to an out-of-bounds write issue. This may cause a Denial of Service when specific crafted TCP/IP packets are sent to the controller. The vulnerability can be exploited by a remote attacker.

Recommendations: For Modicon M218 Logic Controller versions 4.3 and prior, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2021-02030

CVE-2020-7502

Affected Products

Modicon M218 Logic Controller

References · 7

• https://bdu.fstec.ru/vul/2021-02030 · Security Note
• https://osv.dev/vulnerability/CVE-2020-7502 · Vendor Advisory
• https://se.com/ww/en/download/document/SEVD-2020-161-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-7502 · Security Note
• https://download.schneider-electric.com/files?p_enDocType=Technical+leaflet&p_File_Name=SEVD-2020-161-01-Modicon_M218_Logic_Controller_Security_Notification.pdf&p_Doc_Ref=SEVD-2020-161-01 · Note
• https://download.schneider-electric.com/files?p_enDocType=Technical+leaflet&p_File_Name=SEVD-2020-161-01-Modicon_M218_Logic_Controller_Security_Notification.pdf&p_Doc_Ref=SEVD-2020-161-01 · Note
• https://t.me/cvenotify/4409 · Telegram Post