PT-2021-17466 · Unknown · Eipstackgroup Opener Ethernet/Ip

Published 2021-04-18 · Updated 2022-05-23 · CVE-2021-27478

Positive Technologies (AI Summary)

CVSS v3.1

8.2

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Name of the Vulnerable Software and Affected Versions EIPStackGroup OpENer EtherNet/IP versions prior to Feb 10, 2021

Description A specifically crafted packet sent by an attacker may cause a denial-of-service condition.

Recommendations For versions prior to Feb 10, 2021, update to a version released after Feb 10, 2021 to resolve the issue. As a temporary workaround, consider restricting access to the EtherNet/IP protocol to minimize the risk of exploitation.

Fix

Weakness Enumeration

CWE-681

Related Identifiers

CVE-2021-27478

Affected Products

Eipstackgroup Opener Ethernet/Ip

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2021-27478 · Security Note
• https://osv.dev/vulnerability/CVE-2021-27478 · Vendor Advisory
• https://github.com/EIPStackGroup/OpENer · Note
• https://cisa.gov/uscert/ics/advisories/icsa-21-105-02 · Note
• https://t.me/cybersecuritytechnologies/3154 · Telegram Post
• https://t.me/cibsecurity/42568 · Telegram Post