// For flags

CVE-2021-3579

Incorrect Default Permissions vulnerability in bdservicehost.exe and Vulnerability.Scan.exe

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

Incorrect Default Permissions vulnerability in the bdservicehost.exe and Vulnerability.Scan.exe components as used in Bitdefender Endpoint Security Tools for Windows, Total Security allows a local attacker to elevate privileges to NT AUTHORITY\SYSTEM This issue affects: Bitdefender Endpoint Security Tools for Windows versions prior to 7.2.1.65. Bitdefender Total Security versions prior to 7.2.1.65.

Una vulnerabilidad de Permisos Predeterminados Incorrectos en los componentes bdservicehost.exe y Vulnerability.Scan.exe usados en Bitdefender Endpoint Security Tools for Windows, Total Security permite a un atacante local elevar los privilegios a NT AUTHORITY\SYSTEM Este problema afecta a: Bitdefender Endpoint Security Tools for Windows versiones anteriores a 7.2.1.65. Bitdefender Total Security versiones anteriores a 7.2.1.65

This vulnerability allows local attackers to escalate privileges on affected installations of Bitdefender Total 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 endpoint client. The issue results from allowing an untrusted process to impersonate the client of a pipe. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

*Credits: Michael DePlante of 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
High
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
  • 2021-06-03 CVE Reserved
  • 2021-10-28 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-276: Incorrect Default Permissions
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Bitdefender
Search vendor "Bitdefender"
Endpoint Security Tools
Search vendor "Bitdefender" for product "Endpoint Security Tools"
< 7.2.1.65
Search vendor "Bitdefender" for product "Endpoint Security Tools" and version " < 7.2.1.65"
windows
Affected
Bitdefender
Search vendor "Bitdefender"
Total Security
Search vendor "Bitdefender" for product "Total Security"
< 7.2.1.65
Search vendor "Bitdefender" for product "Total Security" and version " < 7.2.1.65"
-
Affected