// For flags

CVE-2021-22716

Schneider Electric C-Bus Toolkit Incorrect Permission Assignment Privilege Escalation Vulnerability

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A CWE-732: Incorrect Permission Assignment for Critical Resource vulnerability exists that could allow remote code execution when an unprivileged user modifies a file. Affected Product: C-Bus Toolkit (V1.15.9 and prior)

Una CWE-732: Asignación incorrecta de permisos para recursos críticos que podría permitir la ejecución remota de código cuando un usuario sin privilegios modifica un archivo. Producto afectado: C-Bus Toolkit (V1.15.9 y anteriores)

This vulnerability allows local attackers to execute arbitrary code on affected installations of Schneider Electric C-Bus Toolkit. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the product installer. The issue results from incorrect permissions set on product folders created by the installer. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of SYSTEM.

*Credits: Simon Zuckerbraun - Trend Micro Zero Day Initiative
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-06 CVE Reserved
  • 2021-04-13 CVE Published
  • 2024-09-16 CVE Updated
  • 2024-09-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-732: Incorrect Permission Assignment for Critical Resource
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Schneider-electric
Search vendor "Schneider-electric"
 C-bus Toolkit
Search vendor "Schneider-electric" for product "C-bus Toolkit"
 <= 1.15.7
Search vendor "Schneider-electric" for product "C-bus Toolkit" and version " <= 1.15.7"
-
Affected