IM
IronMonkey Threat Research

CVE-2021-43615 HIGH

Published: 2022-02-03 | Last Modified: 2026-08-11 | Status: Modified

Description

An issue was discovered in HddPassword in Insyde InsydeH2O with kernel 5.1 before 05.16.23, 5.2 before 05.26.23, 5.3 before 05.35.23, 5.4 before 05.43.22, and 5.5 before 05.51.22. An SMM memory corruption vulnerability allows an attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.

Additional Descriptions (1)

Se ha descubierto un problema en HddPassword en InsydeH2O con el kernel versión 5.1 antes de 05.16.23, versión 5.2 antes de 05.26.23, versión 5.3 antes de 05.35.23, versión 5.4 antes de 05.43.22 y versión 5.5 antes de 05.51.22. Una vulnerabilidad de corrupción de memoria de SMM permite a un atacante escribir datos fijos o predecibles en la SMRAM. La explotación de este problema podría conducir a la escalada de privilegios en el SMM.

CVSS Metrics

Base Score: 8.2 (HIGH)

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

Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredHIGH
User InteractionNONE
ScopeCHANGED
Confidentiality ImpactHIGH
Integrity ImpactHIGH
Availability ImpactHIGH

Source: [email protected]

Type: Primary

Exploitability Score: 1.5

Impact Score: 6.0

Base Score: 7.2 (HIGH)

AV:L/AC:L/Au:N/C:C/I:C/A:C

Access VectorLOCAL
Access ComplexityLOW
AuthenticationNONE
Confidentiality ImpactCOMPLETE
Integrity ImpactCOMPLETE
Availability ImpactCOMPLETE

Source: [email protected]

Type: Primary

Exploitability Score: 3.9

Impact Score: 10.0

Weaknesses

Source Type Description
[email protected] Primary
en CWE-787

Affected Products

Vendor Product Version Update Type
insyde insydeh2o * <built-in method update of dict object at 0x72f03a95dcc0> Application
insyde insydeh2o * <built-in method update of dict object at 0x72f05824d200> Application
insyde insydeh2o * <built-in method update of dict object at 0x72f03a95ff80> Application

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
Yes cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
Yes cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*

References

Notification
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