// For flags

CVE-2021-20021

SonicWall Email Security Improper Privilege Management Vulnerability

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

Yes
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability in the SonicWall Email Security version 10.0.9.x allows an attacker to create an administrative account by sending a crafted HTTP request to the remote host.

Una vulnerabilidad en SonicWall Email Security versión 10.0.9.x, permite a un atacante crear una cuenta administrativa mediante el envío de una petición HTTP diseñada en el host remoto

SonicWall Email Security contains an improper privilege management vulnerability that allows an attacker to create an administrative account by sending a crafted HTTP request to the remote host. This vulnerability has known usage in a SonicWall Email Security exploit chain along with CVE-2021-20022 and CVE-2021-20023 to achieve privilege escalation.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
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
  • 2020-12-17 CVE Reserved
  • 2021-04-09 CVE Published
  • 2021-11-03 Exploited in Wild
  • 2021-11-17 KEV Due Date
  • 2023-09-08 First Exploit
  • 2024-08-03 CVE Updated
  • 2024-09-29 EPSS Updated
CWE
  • CWE-269: Improper Privilege Management
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Sonicwall
Search vendor "Sonicwall"
Email Security
Search vendor "Sonicwall" for product "Email Security"
< 10.0.9.6103
Search vendor "Sonicwall" for product "Email Security" and version " < 10.0.9.6103"
-
Affected
Sonicwall
Search vendor "Sonicwall"
Hosted Email Security
Search vendor "Sonicwall" for product "Hosted Email Security"
< 10.0.9.6103
Search vendor "Sonicwall" for product "Hosted Email Security" and version " < 10.0.9.6103"
-
Affected