// For flags

CVE-2022-43946

Fortinet FortiClient VPN Improper Access Control Remote Code Execution Vulnerability

Severity Score

8.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

Multiple vulnerabilities including an incorrect permission assignment for critical resource [CWE-732] vulnerability and a time-of-check time-of-use (TOCTOU) race condition [CWE-367] vulnerability in Fortinet FortiClientWindows before 7.0.7 allows attackers on the same file sharing network to execute commands via writing data into a windows pipe.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Fortinet FortiClient VPN. Authentication is required to exploit this vulnerability.
The specific flaw exists within the FortiClient Logging daemon. The product applies insufficient access controls to a sensitive pipe. A remote attacker can leverage this vulnerability to execute code in the context of SYSTEM. Additionally, a local attacker can leverage this vulnerability to escalate privileges and execute code in the context of SYSTEM.

*Credits: Ting
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2022-10-27 CVE Reserved
  • 2023-04-11 CVE Published
  • 2024-10-23 CVE Updated
  • 2024-11-01 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
  • CWE-732: Incorrect Permission Assignment for Critical Resource
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
URL Date SRC
https://fortiguard.com/psirt/FG-IR-22-429 2023-11-07
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Fortinet
Search vendor "Fortinet"
 Forticlient
Search vendor "Fortinet" for product "Forticlient"
 >= 6.0.0 < 7.0.8
Search vendor "Fortinet" for product "Forticlient" and version " >= 6.0.0 < 7.0.8"
windows
Affected