CVE-2021-20039

HIGH

8.8

Description

Improper neutralization of special elements in the SMA100 management interface '/cgi-bin/viewcert' POST http method allows a remote authenticated attacker to inject arbitrary commands as a 'nobody' user. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published12/8/2021

Last Modified9/5/2025

Sourcenvd

Honeypot Sightings0

Affected Products

sonicwall:sma_200sonicwall:sma_200_firmwaresonicwall:sma_210sonicwall:sma_210_firmwaresonicwall:sma_400sonicwall:sma_400_firmwaresonicwall:sma_410sonicwall:sma_410_firmwaresonicwall:sma_500vsonicwall:sma_500v_firmware

Weaknesses (CWE)

CWE-78CWE-78

References

http://packetstormsecurity.com/files/165563/SonicWall-SMA-100-Series-Authenticated-Command-Injection.html(PSIRT@sonicwall.com)

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026(PSIRT@sonicwall.com)

http://packetstormsecurity.com/files/165563/SonicWall-SMA-100-Series-Authenticated-Command-Injection.html(af854a3a-2127-422b-91ae-364da2661108)

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026(af854a3a-2127-422b-91ae-364da2661108)

https://attackerkb.com/topics/9szJhq46lw/cve-2021-20039/rapid7-analysis(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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