Vulnerability identifier: #VU47641
Vulnerability risk: Medium
CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Flex IO 1794-AENT/B
Hardware solutions /
Firmware
Vendor: Rockwell Automation
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the ENIP Request Path Logical Segment functionality. A remote attacker can send an Electronic Key Segment with less bytes than required by the Key Format Table following the Key Format field, trigger memory corruption and cause a denial of service condition on the target system.
Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versions
Flex IO 1794-AENT/B: 4.003
External links
http://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1006
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.