CVE-2021-43615

Severity Score

8.2

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

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.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-11-13 CVE Reserved
2022-02-03 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (4)

URL	Tag	Source
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf	Third Party Advisory
https://security.netapp.com/advisory/ntap-20220216-0010	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.insyde.com/security-pledge	2022-03-29
https://www.insyde.com/security-pledge/SA-2022013	2022-03-29

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Insyde Search vendor "Insyde"		Insydeh2o Search vendor "Insyde" for product "Insydeh2o"				>= 5.1 < 5.16.23 Search vendor "Insyde" for product "Insydeh2o" and version " >= 5.1 < 5.16.23"		-		Affected
Insyde Search vendor "Insyde"		Insydeh2o Search vendor "Insyde" for product "Insydeh2o"				>= 5.2 < 5.23.22 Search vendor "Insyde" for product "Insydeh2o" and version " >= 5.2 < 5.23.22"		-		Affected
Insyde Search vendor "Insyde"		Insydeh2o Search vendor "Insyde" for product "Insydeh2o"				>= 5.3 < 5.32.22 Search vendor "Insyde" for product "Insydeh2o" and version " >= 5.3 < 5.32.22"		-		Affected