Vulnerability identifier: #VU57260
Vulnerability risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-190
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Windows
Operating systems & Components /
Operating system
Windows Server
Operating systems & Components /
Operating system
Vendor: Microsoft
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to integer overflow within the Storage Spaces Controller storport.sys driver. A local user can run a specially crafted program to trigger integer overflow and execute arbitrary code with SYSTEM privileges.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Windows: 10 - 10 S, 8.1 - 8.1 RT, 11 21H2
Windows Server: 2012 - 2019 2004
External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40478
http://www.zerodayinitiative.com/advisories/ZDI-21-1155/
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.