Vulnerability · Published Dec 6, 2021 · Assigned by icscert
CVE-2021-43936Distributed Data Systems WebHM
Critical 10.0
In plain English
A critical-severity security flaw in WebHMI from Distributed Data Systems. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 35.8% (higher than 98% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Severity (CVSS 3.1)10.0Critical
Exploit odds (30 days)35.8%top 1.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Public PoC
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Distributed Data Systems | WebHMI | 4.1 – before 4.1 |
References
- https://us-cert.cisa.gov/ics/advisories/icsa-21-336-03 x_refsource_MISC
- http://packetstormsecurity.com/files/165252/WebHMI-4.0-Remote-Code-Execution.html x_refsource_MISC