Global infos:

An elevation of privilege vulnerability exists when Microsoft Windows processes group policy updates. An attacker who successfully exploited this vulnerability could potentially escalate permissions or perform additional privileged actions on the target machine.

To exploit this vulnerability, an attacker would need to launch a man-in-the-middle (MiTM) attack against the traffic passing between a domain controller and the target machine. An attacker could then create a group policy to grant administrator rights to a standard user.

The security update addresses the vulnerability by enforcing Kerberos authentication for certain calls over LDAP.

CVE Status: Modified

References:

[email protected]

af854a3a-2127-422b-91ae-364da2661108

Metrics:

Attribute	Value
Attack Complexity	HIGH
Attack Vector	ADJACENT_NETWORK
Availability Impact	HIGH
Base Score	7.5
Base Severity	HIGH
Confidentiality Impact	HIGH
Integrity Impact	HIGH
Privileges Required	NONE
Scope	UNCHANGED
User Interaction	NONE
Vector String	CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability Score	1.6
Impact Score	5.9
Source	[email protected]
Type	Secondary

Links:

Exploit-db
Github