AC500 V2 unauthenticated crafter packet vulnerability
CVE-2020-24685

8.6HIGH

Key Information:

Vendor

Abb

Status
Ac500 V2 Products With Onboard Ethernet
Vendor
CVE Published:
9 February 2021

What is CVE-2020-24685?

An unauthenticated specially crafted packet sent by an attacker over the network will cause a denial-of-service (DoS) vulnerability. Vulnerability allows attacker to stop the PLC. After stopping (ERR LED flashing red), physical access to the PLC is required in order to restart the application. This issue affects: ABB AC500 V2 products with onboard Ethernet version 2.8.4 and prior versions.

Affected Version(s)

AC500 V2 products with onboard Ethernet version 2.8.4 and prior versions

References

https://search.abb.com/library/Download.aspx?DocumentID=3...
x_refsource_CONFIRM

CVSS V3.1

Score:
8.6
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2020-24685 : AC500 V2 unauthenticated crafter packet vulnerability