#VU76546 Stack-based buffer overflow in Cscape and Cscape EnvisionRV - CVE-2023-29503

Vulnerability identifier: #VU76546

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-29503

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cscape
Universal components / Libraries / Software for developers
Cscape EnvisionRV
Server applications / Remote access servers, VPN

Vendor: Horner Automation

Description

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

The vulnerability exists due to a boundary error when parsing project files. A remote unauthenticated attacker can trick a victim to open a specially crafted file, 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

Cscape: 9.90 SP8

Cscape EnvisionRV: 4.70

---

External links
https://www.cisa.gov/news-events/ics-advisories/icsa-23-143-04

---

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.