CTD-000151

Dangerous ACLs expose GPOs applied to privileged group members

Critical
Active Directory
Execution Privilege Escalation
v16

Signature Identity

CTD-000151
Threat ID
16
Version
IOE
Indicator Type

Threat Description

Misconfigured Access Control Lists (ACLs) can expose Group Policy Objects (GPOs) applied to privileged group members. If an attacker gains access to these GPOs, they can execute code on workstations of privileged accounts, potentially escalating their privileges. This vulnerability highlights the importance of properly securing ACLs to prevent unauthorized access and privilege escalation within an Active Directory environment.

MITRE ATT&CK: Attack Tactics

Execution Privilege Escalation

D3FEND: Defend Tactics

Credential Hardening

Remediation

  1. Open Group Policy Management Console.
  2. Navigate to GPO Object.
  3. Review Security Settings on the GPO page.
  4. Remove any unexpected permissions from GPO.

Frequently Asked Questions

What does Dangerous ACLs expose GPOs applied to privileged group members mean?

Misconfigured Access Control Lists (ACLs) in Active Directory are exposing Group Policy Objects (GPOs) applied to privileged group members, allowing unauthorized access to sensitive settings and permissions.

This vulnerability is rated critical because it enables attackers to execute code on workstations of privileged accounts, which can lead to privilege escalation and unauthorized access to sensitive systems within the Active Directory environment. Specifically, an attacker gains the capability to manipulate settings and permissions that are typically restricted.

An attacker can exploit this vulnerability by accessing the exposed GPOs and executing code on workstations of privileged accounts, which allows them to manipulate settings and permissions that are typically restricted. This can support later attacker activity, such as privilege escalation or lateral movement within the Active Directory environment.

Cayosoft Guardian continuously monitors the ACLs and GPOs in Active Directory, identifying misconfigured ACLs that expose sensitive settings and permissions, and flags them as security issues for administrators to address.

Cayosoft Guardian alerts administrators to take corrective action, such as reviewing and removing unexpected permissions from GPOs, providing visibility into potential security issues and supporting investigation and response efforts.

Stop AD Threats As They Happen

Cayosoft Protector provides continuous monitoring and real-time alerts across your entire Microsoft Identity stack

Classification
Systems
Active Directory
Themes
Privileged Access Management
Attack Tactics
Execution Privilege Escalation
Defend Tactics
Credential Hardening
Indicator Types
IOE
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