Remote code execution in Horner Automation Cscape EnvisionRV
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-44462 |
| CWE-ID | CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Cscape EnvisionRV Server applications / Remote access servers, VPN |
| Vendor | Horner Automation |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Input validation error
EUVDB-ID: #VU59153
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-2021-44462
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can trick a victim to open a specially crafted HMI project file and execute arbitrary code on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCscape EnvisionRV: 4.50.3.1
External linkshttp://ics-cert.us-cert.gov/advisories/icsa-21-355-02
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
