CVE-2021-33626

HIGH

7.8

Descripcion

A vulnerability exists in SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer(QWORD values for CommBuffer). This can be used by an attacker to corrupt data in SMRAM memory and even lead to arbitrary code execution.

Detalles CVE

Puntuacion CVSS v3.17.8

SeveridadHIGH

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

Vector de ataqueLOCAL

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioNONE

Publicado10/1/2021

Ultima modificacion11/4/2025

Fuentenvd

Avistamientos honeypot0

Productos afectados

insyde:insydeh2osiemens:ruggedcom_apr1808siemens:ruggedcom_apr1808_firmwaresiemens:simatic_field_pg_m5siemens:simatic_field_pg_m5_firmwaresiemens:simatic_field_pg_m6siemens:simatic_field_pg_m6_firmwaresiemens:simatic_ipc127esiemens:simatic_ipc127e_firmwaresiemens:simatic_ipc227gsiemens:simatic_ipc227g_firmwaresiemens:simatic_ipc277gsiemens:simatic_ipc277g_firmwaresiemens:simatic_ipc327gsiemens:simatic_ipc327g_firmwaresiemens:simatic_ipc377gsiemens:simatic_ipc377g_firmwaresiemens:simatic_ipc427esiemens:simatic_ipc427e_firmwaresiemens:simatic_ipc477esiemens:simatic_ipc477e_firmwaresiemens:simatic_ipc477e_prosiemens:simatic_ipc477e_pro_firmwaresiemens:simatic_ipc627esiemens:simatic_ipc627e_firmwaresiemens:simatic_ipc647esiemens:simatic_ipc647e_firmwaresiemens:simatic_ipc677esiemens:simatic_ipc677e_firmwaresiemens:simatic_ipc847esiemens:simatic_ipc847e_firmwaresiemens:simatic_itp1000siemens:simatic_itp1000_firmware

Debilidades (CWE)

CWE-829

Referencias

https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf(cve@mitre.org)

https://security.netapp.com/advisory/ntap-20220216-0006/(cve@mitre.org)

https://www.insyde.com/security-pledge(cve@mitre.org)

https://www.insyde.com/security-pledge/SA-2021001(cve@mitre.org)

https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20220216-0006/(af854a3a-2127-422b-91ae-364da2661108)

https://www.insyde.com/security-pledge(af854a3a-2127-422b-91ae-364da2661108)

https://www.insyde.com/security-pledge/SA-2021001(af854a3a-2127-422b-91ae-364da2661108)

https://www.kb.cert.org/vuls/id/796611(af854a3a-2127-422b-91ae-364da2661108)

Correlaciones IOC

Sin correlaciones registradas

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