PT-2020-18914 · Allen Bradley · Flex Io

Published 2020-10-14 · Updated 2022-07-29 · CVE-2020-6086

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 Allen-Bradley Flex IO 1794-AENT/B (affected versions not specified)

Description A denial of service issue exists in the ENIP Request Path Data Segment functionality. It can be triggered by a specially crafted network request, causing a loss of communications with the device. This occurs when the Simple Segment Sub-Type is supplied and the byte following it represents a Data Size in words that exceeds the remaining packet data, leading to a fault state where communication is lost. A physical power cycle is required to recover from this state.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2020-6086

Affected Products

Flex Io

References · 3

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2020-1007 · Exploit
• https://osv.dev/vulnerability/CVE-2020-6086 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-6086 · Security Note