Distributed Data Systems WebHM
CVE-2021-43936

10CRITICAL

Key Information:

Vendor

Distributed Data Systems

Status
Webhmi
Vendor
CVE Published:
6 December 2021

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 28%

What is CVE-2021-43936?

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.

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Affected Version(s)

WebHMI 4.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-43936
Created by LongWayHomie

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-336-03
x_refsource_MISC
http://packetstormsecurity.com/files/165252/WebHMI-4.0-Re...
x_refsource_MISC

EPSS Score

28% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Marcin Dudek of CERT.PL reported these vulnerabilities to CISA.
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