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Firewall traversal from remote host must be disabled


Finding ID Version Rule ID IA Controls Severity
V-0001 DTBC-0001 SV-0001r1_rule Medium
Enables usage of STUN and relay servers when remote clients are trying to establish a connection to this machine. If this setting is enabled, then remote clients can discover and connect to this machines even if they are separated by a firewall. If this setting is disabled and outgoing UDP connections are filtered by the firewall, then this machine will only allow connections from client machines within the local network. If this policy is left not set the setting will be enabled.
Google Chrome STIG Draft 2012-09-25


Check Text ( C-0001r1_chk )
Universal method (Requires Chrome Browser v15 or later):
1. In the omnibox (address bar) type chrome://policy
2. If RemoteAccessHostFirewallTraversal is displayed under the Policy Name column and it is set to false under the Policy Value column, then this is not a finding.

Windows method:
1. Start regedit
2. Navigate to HKLM\Software\Policies\Google\Chrome\
3. If the RemoteAccessHostFirewallTraversal value name does not exist or its value data is not set to 0, then this is a finding.
Fix Text (F-0001r1_fix)

Valid for Chrome Browser version 14 or later.

Windows registry:
Key Path: HKLM\Software\Policies\Google\Chrome\
Value Name: RemoteAccessHostFirewallTraversal
Value Type: Boolean (REG_DWORD)
Value Data: 0

Windows group policy:
Policy Path: Computer Configuration\Administrative Templates\Google\Google Chrome\Configure remote access options\
Policy Name: Enable firewall traversal from remote access host
Policy State: Disabled
Policy Value: N/A