// For flags

CVE-2021-36744

Trend Micro Maximum Security Directory Junction Denial-of-Service 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

Trend Micro Security (Consumer) 2021 and 2020 are vulnerable to a directory junction vulnerability which could allow an attacker to exploit the system to escalate privileges and create a denial of service.

Trend Micro Security (Consumer) versiones 2021 y 2020, son vulnerables a una vulnerabilidad de salto de directorios que podría permitir a un atacante explotar el sistema para escalar privilegios y crear una denegación de servicio.

This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Trend Micro Maximum Security. 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 Maximum Security Agent. By creating a directory junction, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

*Credits: Abdelhamid Naceri (halov)
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
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
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
  • 2021-07-14 CVE Reserved
  • 2021-08-30 CVE Published
  • 2023-03-30 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-59: Improper Link Resolution Before File Access ('Link Following')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Trendmicro
Search vendor "Trendmicro"
Maximum Security 2019
Search vendor "Trendmicro" for product "Maximum Security 2019"
15.0
Search vendor "Trendmicro" for product "Maximum Security 2019" and version "15.0"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows
Search vendor "Microsoft" for product "Windows"
--
Safe
Trendmicro
Search vendor "Trendmicro"
Maximum Security 2020
Search vendor "Trendmicro" for product "Maximum Security 2020"
16.0
Search vendor "Trendmicro" for product "Maximum Security 2020" and version "16.0"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows
Search vendor "Microsoft" for product "Windows"
--
Safe
Trendmicro
Search vendor "Trendmicro"
Maximum Security 2021
Search vendor "Trendmicro" for product "Maximum Security 2021"
17.0
Search vendor "Trendmicro" for product "Maximum Security 2021" and version "17.0"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows
Search vendor "Microsoft" for product "Windows"
--
Safe
Trendmicro
Search vendor "Trendmicro"
Maximum Security 2021
Search vendor "Trendmicro" for product "Maximum Security 2021"
17.2
Search vendor "Trendmicro" for product "Maximum Security 2021" and version "17.2"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows
Search vendor "Microsoft" for product "Windows"
--
Safe
Trendmicro
Search vendor "Trendmicro"
Security For Best Buy
Search vendor "Trendmicro" for product "Security For Best Buy"
2021
Search vendor "Trendmicro" for product "Security For Best Buy" and version "2021"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows
Search vendor "Microsoft" for product "Windows"
--
Safe