Logo
-

Byte Open Security

(ByteOS Network)

Log In

Sign Up

ByteOS

Security
Vulnerability Details
Registries
Custom Views
Weaknesses
Attack Patterns
Filters & Tools
Vulnerability Details :

CVE-2021-20021

Summary
Assigner-sonicwall
Assigner Org ID-44b2ff79-1416-4492-88bb-ed0da00c7315
Published At-09 Apr, 2021 | 17:50
Updated At-30 Jul, 2025 | 01:38
Rejected At-
Credits

SonicWall Email Security Improper Privilege Management Vulnerability

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Known Exploited Vulnerabilities (KEV)
cisa.gov
Vendor:
SonicWall Inc.SonicWall
Product:SonicWall Email Security
Added At:03 Nov, 2021
Due At:17 Nov, 2021

SonicWall Email Security Improper Privilege Management Vulnerability

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.

Used in Ransomware

:

Known

CWE

:
CWE-306

Required Action:

Apply updates per vendor instructions.

Additional Notes:

https://nvd.nist.gov/vuln/detail/CVE-2021-20021
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:sonicwall
Assigner Org ID:44b2ff79-1416-4492-88bb-ed0da00c7315
Published At:09 Apr, 2021 | 17:50
Updated At:30 Jul, 2025 | 01:38
Rejected At:
▼CVE Numbering Authority (CNA)

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.

Affected Products
Vendor
SonicWall Inc.SonicWall
Product
Email Security
Versions
Affected
  • 10.0.9 and earlier
Problem Types
TypeCWE IDDescription
CWECWE-269CWE-269: Improper Privilege Management
Type: CWE
CWE ID: CWE-269
Description: CWE-269: Improper Privilege Management
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007
x_refsource_CONFIRM
Hyperlink: https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007
Resource:
x_refsource_CONFIRM
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007
x_refsource_CONFIRM
x_transferred
Hyperlink: https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007
Resource:
x_refsource_CONFIRM
x_transferred
2. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
kev
dateAdded:
2021-11-03
reference:
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20021
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
CVE-2021-20021 added to CISA KEV2021-11-03 00:00:00
Event: CVE-2021-20021 added to CISA KEV
Date: 2021-11-03 00:00:00
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:PSIRT@sonicwall.com
Published At:09 Apr, 2021 | 18:15
Updated At:14 Mar, 2025 | 17:08

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
2021-11-032021-11-17SonicWall Email Security Improper Privilege Management VulnerabilityApply updates per vendor instructions.
Date Added: 2021-11-03
Due Date: 2021-11-17
Vulnerability Name: SonicWall Email Security Improper Privilege Management Vulnerability
Required Action: Apply updates per vendor instructions.
Metrics
TypeVersionBase scoreBase severityVector
Primary3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Secondary3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary2.07.5HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
Type: Primary
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Primary
Version: 2.0
Base score: 7.5
Base severity: HIGH
Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P
CPE Matches
SonicWall Inc.
sonicwall
>>email_security>>Versions before 10.0.9.6103(exclusive)
cpe:2.3:a:sonicwall:email_security:*:*:*:*:*:*:*:*
SonicWall Inc.
sonicwall
>>hosted_email_security>>Versions before 10.0.9.6103(exclusive)
cpe:2.3:a:sonicwall:hosted_email_security:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-269SecondaryPSIRT@sonicwall.com
CWE-269Primarynvd@nist.gov
CWE ID: CWE-269
Type: Secondary
Source: PSIRT@sonicwall.com
CWE ID: CWE-269
Type: Primary
Source: nvd@nist.gov
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007PSIRT@sonicwall.com
Vendor Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Hyperlink: https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007
Source: PSIRT@sonicwall.com
Resource:
Vendor Advisory
Hyperlink: https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Vendor Advisory

Change History

0
Information is not available yet

Similar CVEs

0Records found
Details not found