Description
The software allows the attacker to upload or transfer files of dangerous types to the WebHMI portal, that may be automatically processed within the product's environment or lead to arbitrary code execution.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Distributed Data Systems | WebHMI | 4.1 – < 4.1 | 4.1 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- WebHMI 4.0 - Remote Code Execution (RCE) (Authenticated) EDB-50589 · webapps · Dec 13, 2021
GitHub 1 repository
-
LongWayHomie/CVE-2021-43936 ★ 9 · Dec 12, 2021
CVE-2021-43936 is a critical vulnerability (CVSS3 10.0) leading to Remote Code Execution (RCE) in WebHMI Firmware.
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- ICSA-21-336-03 Distributed Data Systems WebHMI CISA ICS & IT advisories · Dec 2, 2021