#VU55630 Arbitrary file upload in myPRO - CVE-2021-33009

Vulnerability identifier: #VU55630

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-33009

CWE-ID: CWE-434

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
myPRO
Server applications / SCADA systems

Vendor: mySCADA

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload. A remote attacker can upload a malicious file and execute it on the server.

Mitigation
Install update from vendor's website.

Vulnerable software versions

myPRO: before 8.20.0

---

External links
https://ics-cert.us-cert.gov/advisories/icsa-21-217-03

---

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.