An exploitable denial of service vulnerability exists in the ENIP Request Path Data Segment functionality of Allen-Bradley Flex IO 1794-AENT/B. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a malicious packet to trigger this vulnerability.If the Simple Segment Sub-Type is supplied, the device treats the byte following as the Data Size in words. When this value represents a size greater than what remains in the packet data, the device enters a fault state where communication with the device is lost and a physical power cycle is required.
Advisories
Source ID Title
EUVD EUVD EUVD-2020-27240 An exploitable denial of service vulnerability exists in the ENIP Request Path Data Segment functionality of Allen-Bradley Flex IO 1794-AENT/B. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a malicious packet to trigger this vulnerability.If the Simple Segment Sub-Type is supplied, the device treats the byte following as the Data Size in words. When this value represents a size greater than what remains in the packet data, the device enters a fault state where communication with the device is lost and a physical power cycle is required.
Fixes

Solution

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Workaround

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History

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cve-icon MITRE

Status: PUBLISHED

Assigner: talos

Published:

Updated: 2024-08-04T08:47:41.005Z

Reserved: 2020-01-07T00:00:00

Link: CVE-2020-6086

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-10-14T13:15:13.520

Modified: 2024-11-21T05:35:04.110

Link: CVE-2020-6086

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses