Named Pipes and Shares can be accessed anonymously.

From Windows 2008 Domain Controller Security Technical Implementation Guide

Part of Anonymous Access to Named Pipes and Shares

Associated with IA controls: ECSC-1

SV-29545r1_rule Named Pipes and Shares can be accessed anonymously.

Vulnerability discussion

This is a Category 1 finding because of the potential for gaining unauthorized system access. Pipes are internal system communications processes. They are identified internally by ID numbers that vary between systems. To make access to these processes easier, these pipes are given names that do not vary between systems. When this setting is disabled, Network shares can be accessed by any network user. This could lead to the exposure or corruption of sensitive data.

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Fix text

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network access: Restrict anonymous access to Named Pipes and Shares” to “Enabled”.

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