Vulnerability identifier: #VU49358

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: CVE-2020-13573

CWE-ID: CWE-823

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
RSLinx Classic
Server applications / SCADA systems

Vendor: Rockwell Automation

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation in the Ethernet/IP server functionality. A remote atttacker can send a specially crafted request and cause a denial of service condition on the targe system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

RSLinx Classic: 2.57.00.14 CPR 9 SR 3

---

External links
http://talosintelligence.com/vulnerability_reports/TALOS-2020-1184

---

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.