CCE-4467-7Platform: cpe:/o:microsoft:windows_vista | Date: (C)2012-03-13 (M)2023-07-04 |
This policy setting controls whether User Interface Accessibility (UIAccess or UIA) programs can automatically disable the secure desktop for elevation prompts used by a standard user.
- Enabled: UIA programs, including Windows Remote Assistance, automatically disable the secure desktop for elevation prompts. If you do not disable the "User Account Control: Switch to the secure desktop when prompting for elevation" policy setting, the prompts appear on the interactive user's desktop instead of the secure desktop.
- Disabled: (Default) The secure desktop can be disabled only by the user of the interactive desktop or by disabling the "User Account Control: Switch to the secure desktop when prompting for elevation" policy setting.
Countermeasure:
To reduce the risk of a user gaining elevated privileges disable this setting.
Potential Impact:
If you enable this setting, ("User Account Control: Allow UIAccess applications to prompt for elevation without using the secure desktop"), requests for elevation are automatically sent to the interactive desktop (not the secure desktop) and also appear on the remote administrator's view of the desktop during a Windows Remote Assistance session, and the remote administrator is able to provide the appropriate credentials for elevation. This setting does not change the behavior of the UAC elevation prompt for administrators."
Parameter:
[enabled/disabled]
Technical Mechanism:
(1) GPO: Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options\User Account Control: Allow UIAccess applications to prompt for elevation without using the secure desktop
(2) REG: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System!EnableUIADesktopToggle
CCSS Severity: | CCSS Metrics: |
CCSS Score : 7.5 | Attack Vector: NETWORK |
Exploit Score: 1.6 | Attack Complexity: HIGH |
Impact Score: 5.9 | Privileges Required: LOW |
Severity: HIGH | User Interaction: NONE |
Vector: AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | Scope: UNCHANGED |
| Confidentiality: HIGH |
| Integrity: HIGH |
| Availability: HIGH |
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References: Resource Id | Reference |
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SCAP Repo OVAL Definition | oval:gov.nist.usgcb.vista:def:20019 |
BITS Shared Assessments SIG v6.0 | BITS Shared Assessments SIG v6.0 |
Jericho Forum | Jericho Forum |
HIPAA/HITECH Act | HIPAA/HITECH Act |
FedRAMP Security Controls(Final Release Jan 2012)--LOW IMPACT LEVEL-- | FedRAMP Security Controls(Final Release Jan 2012)--LOW IMPACT LEVEL-- |
ISO/IEC 27001-2005 | ISO/IEC 27001-2005 |
COBIT 4.1 | COBIT 4.1 |
GAPP (Aug 2009) | GAPP (Aug 2009) |
NERC CIP | NERC CIP |
NIST SP800-53 R3 | NIST SP800-53 R3 AC-3 |
NIST SP800-53 R3 | NIST SP800-53 R3 AC-6 |
PCIDSS v2.0 | PCIDSS v2.0 |
FedRAMP Security Controls(Final Release Jan 2012)--MODERATE IMPACT LEVEL-- | FedRAMP Security Controls(Final Release Jan 2012)--MODERATE IMPACT LEVEL-- |
BITS Shared Assessments AUP v5.0 | BITS Shared Assessments AUP v5.0 |