CVE-2021-20038

CRITICALCISA KEV

9.8

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.19.8

SeveridadCRITICAL

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

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado12/8/2021

Ultima modificacion10/31/2025

Fuentekev

Avistamientos honeypot0

CISA KEV

VendedorSonicWall

ProductoSMA 100 Appliances

Nombre vulnerabilidadSonicWall SMA 100 Appliances Stack-Based Buffer Overflow Vulnerability

Fecha inclusion KEV2022-01-28

Fecha limite remediacion2022-02-11

Uso en ransomwareKnown

Productos afectados

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

Debilidades (CWE)

CWE-121CWE-787

Referencias

https://github.com/jbaines-r7/badblood(PSIRT@sonicwall.com)

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

https://www.rapid7.com/blog/post/2022/01/11/cve-2021-20038-42-sonicwall-sma-100-multiple-vulnerabilities-fixed-2/(PSIRT@sonicwall.com)

https://github.com/jbaines-r7/badblood(af854a3a-2127-422b-91ae-364da2661108)

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

https://www.rapid7.com/blog/post/2022/01/11/cve-2021-20038-42-sonicwall-sma-100-multiple-vulnerabilities-fixed-2/(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20038(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlaciones IOC

Sin correlaciones registradas

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