Vulnerability identifier: #VU48647

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-27251

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FactoryTalk Linx
Server applications / SCADA systems

Vendor: Rockwell Automation

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A remote attacker can send malicious port ranges, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FactoryTalk Linx: 6.11

---

External links
http://ics-cert.us-cert.gov/advisories/icsa-20-329-01

---

Q & A

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.