CVE-2021-20038

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 08-12-2021 11:15

Last modified: - 13-05-2022 04:54

Total changes: - 4

Description

A Stack-based buffer overflow vulnerability in SMA100 Apache httpd server's mod_cgi module environment variables allows a remote unauthenticated attacker to potentially execute code as a 'nobody' user in the appliance. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances firmware 10.2.0.8-37sv, 10.2.1.1-19sv, 10.2.1.2-24sv and earlier versions.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Low

Attack complexity

Network

Attack vector

High

Availability

High

Confidentiality

High

Integrity

None

Privileges required

Unchanged

Scope

None

User interaction

9.8

Base score

3.9

5.9

Exploitability score

Impact score

Verification logic

AND

vendor=sonicwall AND product=sma_200_firmware AND version=10.2.0.8-37sv

vendor=sonicwall AND product=sma_200_firmware AND version=10.2.1.1-19sv

vendor=sonicwall AND product=sma_200_firmware AND version=10.2.1.2-24sv

vendor=sonicwall AND product=sma_200 AND version=-

AND

vendor=sonicwall AND product=sma_210_firmware AND version=10.2.0.8-37sv

vendor=sonicwall AND product=sma_210_firmware AND version=10.2.1.1-19sv

vendor=sonicwall AND product=sma_210_firmware AND version=10.2.1.2-24sv

vendor=sonicwall AND product=sma_210 AND version=-

AND

vendor=sonicwall AND product=sma_410_firmware AND version=10.2.0.8-37sv

vendor=sonicwall AND product=sma_410_firmware AND version=10.2.1.1-19sv

vendor=sonicwall AND product=sma_410_firmware AND version=10.2.1.2-24sv

vendor=sonicwall AND product=sma_410 AND version=-

AND

vendor=sonicwall AND product=sma_400_firmware AND version=10.2.0.8-37sv

vendor=sonicwall AND product=sma_400_firmware AND version=10.2.1.1-19sv

vendor=sonicwall AND product=sma_400_firmware AND version=10.2.1.2-24sv

vendor=sonicwall AND product=sma_400 AND version=-

AND

vendor=sonicwall AND product=sma_500v_firmware AND version=10.2.0.8-37sv

vendor=sonicwall AND product=sma_500v_firmware AND version=10.2.1.1-19sv

vendor=sonicwall AND product=sma_500v_firmware AND version=10.2.1.2-24sv

vendor=sonicwall AND product=sma_500v AND version=-

Reference

Keywords

CVE-2021-20038

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-20038

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures