#VU72107 Out-of-bounds read in Cscape EnvisionRV - CVE-2023-0621

Vulnerability identifier: #VU72107

Vulnerability risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-0621

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cscape EnvisionRV
Server applications / Remote access servers, VPN

Vendor: Horner Automation

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when parsing HMI files. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger an out-of-bounds read error and read contents of memory on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cscape EnvisionRV: 4.50.3.1 - 4.60

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External links
https://ics-cert.us-cert.gov/advisories/icsa-23-040-04

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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.