CVE-2021-20022

CVE Published	2021-04-09
Related CWE(s)	CWE-434: Unrestricted Upload of File with Dangerous Type
Related Vendor(s)	sonicwall
Related Product(s)	hosted_email_security, email_security
Exploitation Reported (CISA KEV)	2021-11-03
CVSS 3 Base Score	7.2 (HIGH)
CVSS 3 Attack Complexity	LOW
CVSS 3 Attack Vector	NETWORK

SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to upload an arbitrary file to the remote host.

Cyber Threat Graph Context

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Associated CAPEC Patterns

Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1)

In applications, particularly web applications, access to functionality is mitigated by an authorization framework. This framework maps Access Control Lists (ACLs) to elements of the application's functionality; particularly URL's for web apps. In the case that the administrator failed to specify an ACL for a particular element, an attacker may be able to access it with impunity. An attacker with the ability to access functionality not properly constrained by ACLs can obtain sensitive information and possibly compromise the entire application. Such an attacker can access resources that must be available only to users at a higher privilege level, can access management sections of the application, or can run queries for data that they otherwise not supposed to.

References

CVE.org

View more information about CVE-2021-20022 on the official MITRE CVE website.

NIST National Vulnerability Database

CVE-2021-20022 on the NIST NVD.

CISA Known Exploited Vulnerabilities