CVE-2021-44852

CVSS V2 High 7.2 CVSS V3 High 7.8

Description

An issue was discovered in BS_RCIO64.sys in Biostar RACING GT Evo 2.1.1905.1700. A low-integrity process can open the driver's device object and issue IOCTLs to read or write to arbitrary physical memory locations (or call an arbitrary address), leading to execution of arbitrary code. This is associated with 0x226040, 0x226044, and 0x226000.

Overview

CVE ID
CVE-2021-44852

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2022-01-01T06:15:07

Last Modified Date
2022-01-12T15:23:25

Weakness Enumerations

CWE	URL
CWE-668	http://cwe.mitre.org/data/definitions/668.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:biostar:racing_gt_evo:2.1.1905.1700:::::::*	1	OR

CVSS Version 2

Version
2.0

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

Access Vector
LOCAL

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
COMPLETE

Integrity Impact
COMPLETE

Availability Impact
COMPLETE

Base Score
7.2

Severity
HIGH

Exploitability Score
3.9

Impact Score
10

CVSS Version 3

Version
3.1

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

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
7.8

Base Severity
HIGH

Exploitability Score
1.8

Impact Score
5.9

References

Reference URL	Reference Tags
https://nephosec.com/biostar-exploit/	Exploit Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-44852
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44852

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:37:44				Added to TrackCVE
2022-12-06 05:27:11	2022-01-01T06:15Z	2022-01-01T06:15:07	CVE Published Date	updated
2022-12-06 05:27:11		2022-01-12T15:23:25	CVE Modified Date	updated
2022-12-06 05:27:11		Analyzed	Vulnerability Status	updated