Vulnerability identifier: #VU50090

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-22637

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Tellus Lite V-Simulator
Server applications / Other server solutions
V-Server Lite
Server applications / Web servers

Vendor:

Description

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

The vulnerability exists due to a boundary error when processing VPR files. A remote unauthenticated attacker can trigger stack-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

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External links
http://us-cert.cisa.gov/ics/advisories/icsa-21-026-01
http://www.zerodayinitiative.com/advisories/ZDI-21-097/

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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.