Vulnerability identifier: #VU66734
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-121
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
RTU500 CMU
Hardware solutions /
Firmware
Vendor: ABB
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 HCI Modbus TCP function. A remote unauthenticated attacker can send a specially crafted message, trigger stack-based buffer overflow and cause a denial of service condition on the target system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
RTU500 CMU: 12.0.1 - 13.3.1
External links
http://ics-cert.us-cert.gov/advisories/icsa-22-235-07
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.