SB2021092405 - Denial of service in SonicWall SMA 100 Series

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Main Vulnerability Database SB2021092405

SB2021092405 - Denial of service in SonicWall SMA 100 Series

Published: September 24, 2021

Security Bulletin ID SB2021092405
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) OS Command Injection (CVE-ID: CVE-2021-20035)

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:A/U:Clear


The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation in the SMA100 management interface. A remote user can send a specially crafted request to the application and execute arbitrary OS commands on the target system as a 'nobody' user.

Successful exploitation of the vulnerability may lead to denial of service.


Remediation

Install update from vendor's website.

References