// For flags

CVE-2021-44462

Horner Automation Cscape EnvisionRV Improper Input Validation

Severity Score

7.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

This vulnerability can be exploited by parsing maliciously crafted project files with Horner Automation Cscape EnvisionRV v4.50.3.1 and prior. The issues result from the lack of proper validation of user-supplied data, which can result in reads and writes past the end of allocated data structures. User interaction is required to exploit this vulnerability as an attacker must trick a valid user to open a malicious HMI project file.

Esta vulnerabilidad puede ser explotada al analizar archivos de proyecto maliciosamente diseñados con Horner Automation Cscape EnvisionRV versiones v4.50.3.1 y anteriores. Los problemas son derivados de una falta de comprobación apropiada de los datos suministrados por el usuario, lo que puede resultar en lecturas y escrituras más allá del final de las estructuras de datos asignadas. Es requerida una interacción del usuario para explotar esta vulnerabilidad, ya que un atacante debe engañar a un usuario válido para que abra un archivo de proyecto HMI malicioso

*Credits: Michael Heinzl reported this vulnerability to CISA.
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-12-16 CVE Reserved
  • 2022-03-25 CVE Published
  • 2024-09-16 CVE Updated
  • 2024-12-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-02 2022-04-04
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Hornerautomation
Search vendor "Hornerautomation"
 Cscape Envisionrv
Search vendor "Hornerautomation" for product "Cscape Envisionrv"
 <= 4.50.3.1
Search vendor "Hornerautomation" for product "Cscape Envisionrv" and version " <= 4.50.3.1"
-
Affected