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 ANSI Extended Symbol 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-2020-27241 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 ANSI Extended Symbol 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

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: talos

Published:

Updated: 2024-08-04T08:47:41.100Z

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

Link: CVE-2020-6087

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-10-14T13:15:13.583

Modified: 2024-11-21T05:35:04.230

Link: CVE-2020-6087

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses