#VU53882 Permissions, Privileges, and Access Controls in Windows and Windows Server - CVE-2021-31958
Published: June 8, 2021
Vulnerability identifier: #VU53882
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-31958
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Windows
Windows Server
Windows
Windows Server
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions in the Windows NTLM. A remote attacker can trick a victim to visit a specially crafted server share or website, which leads to security restrictions bypass and privilege escalation.
Remediation
Install updates from vendor's website.