What is CVE-2021-20021?

CVE-2021-20021 is an improper privilege management vulnerability in SonicWall Email Security that allows an attacker to create an administrative account.

What is the severity of CVE-2021-20021?

CVE-2021-20021 has a severity rating of 9.8, indicating it is a critical vulnerability.

What software is affected by CVE-2021-20021?

SonicWall Email Security versions up to 10.0.9.6103, SonicWall Hosted Email Security versions up to 10.0.9.6103.

Where can I find more information about CVE-2021-20021?

You can find more information about CVE-2021-20021 on the SonicWall PSIRT website: https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007

Vulnerability/
CVE-2021-20021

Exploited

critical

9.8

CWE

269

9/4/2021

14/4/2021

CVE-2021-20021: SonicWall Email Security Improper Privilege Management Vulnerability

Q: How can an attacker exploit CVE-2021-20021?

An attacker can exploit CVE-2021-20021 by sending a crafted HTTP request to the remote host and creating an administrative account.

First published: Fri Apr 09 2021(Updated: )

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.

Credit: PSIRT@sonicwall.com

Affected Software	Affected Version	How to fix
SonicWall SonicWall Email Security
SonicWall Email Security	<10.0.9.6103
Sonicwall Hosted Email Security	<10.0.9.6103

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Reference Links

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007

Frequently Asked Questions

What is CVE-2021-20021?
CVE-2021-20021 is an improper privilege management vulnerability in SonicWall Email Security that allows an attacker to create an administrative account.
What is the severity of CVE-2021-20021?
CVE-2021-20021 has a severity rating of 9.8, indicating it is a critical vulnerability.
What software is affected by CVE-2021-20021?
SonicWall Email Security versions up to 10.0.9.6103, SonicWall Hosted Email Security versions up to 10.0.9.6103.
How can an attacker exploit CVE-2021-20021?
An attacker can exploit CVE-2021-20021 by sending a crafted HTTP request to the remote host and creating an administrative account.
Where can I find more information about CVE-2021-20021?
You can find more information about CVE-2021-20021 on the SonicWall PSIRT website: https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007

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