Shared CD/DVD drive isn't accessible remotely when set to read-only

Technical Articles ID: KB81073
Last Modified: 2023-05-30 04:04:38 Etc/GMT

Environment

Data Loss Prevention Endpoint (DLP Endpoint) - all supported versions

For supported environments, see KB68147 - Supported platforms for Data Loss Prevention Endpoint.

Problem

You configure a DLP Endpoint Removable Storage Protection Rule to enforce a shared CD/DVD-ROM drive to read-only. As a result, a remote user can't access the CD/DVD-ROM drive.

NOTE: This issue does not affect a local user who accesses the computer locally.

Cause

This issue is related to Microsoft Access Control List (ACL) implementation.

When CD/DVD-Drive ACL is set to read-only, a remote user (without Local Administrator rights) is unable to access the shared drive.

Solution

To allow a remote user to access the shared CD/DVD drive, set Local Administrator rights.

Example scenario:

A computer with a shared CD/DVD drive is named MachineA
A remote user UserB (non-administrator) is logged on to a computer (MachineB) and tries to access the CD on MachineA.

Create a domain group called AllowedCD.
Add UserB to the group AllowedCD.
Add the AllowedCD group to the Local Administrators group on MachineA.
Log off UserB, log on to MachineB, and attempt to access the CD.

Affected Products

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Shared CD/DVD drive isn't accessible remotely when set to read-only

Environment

Problem

Cause

Solution

Affected Products

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Shared CD/DVD drive isn't accessible remotely when set to read-only

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