CVE-2021-44852 — HIGH (7.8)

Vulnerability 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.

CVSS Score

7.8

HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Biostar	Racing Gt Evo	2.1.1905.1700

References

https://nephosec.com/biostar-exploit/ExploitThird Party Advisory
https://nephosec.com/biostar-exploit/ExploitThird Party Advisory

FAQ

What is CVE-2021-44852?

CVE-2021-44852 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 mem...

How severe is CVE-2021-44852?

CVE-2021-44852 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-44852?

Check the references section above for vendor advisories and patch information. Affected products include: Biostar Racing Gt Evo.