Vulnerability Details CVE-2020-6087
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 11.8%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 7.8
References
Products affected by CVE-2020-6087
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cpe:2.3:h:rockwellautomation:flex_i/o_1794-aent/b:-
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cpe:2.3:o:rockwellautomation:flex_i/o_1794-aent/b_firmware:4.003