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.

CVSS v3 7.5 HIGH
CVSS v2.0 7.8 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.8^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 10.0 / Impact : 6.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1007	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:rockwellautomation:flex_i\/o_1794-aent\/b_firmware:4.003:*:*:*:*:*:*:*

cpe:2.3:h:rockwellautomation:flex_i\/o_1794-aent\/b:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-10-14 13:15

Updated : 2023-12-10 13:41

NVD link : CVE-2020-6087

Mitre link : CVE-2020-6087

CVE.ORG link : CVE-2020-6087

JSON object : View

Products Affected

rockwellautomation

flex_i\/o_1794-aent\/b
flex_i\/o_1794-aent\/b_firmware

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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