LDAPv3 must block man-in-the-middle attacks.

From MAC OSX 10.6 Workstation Security Technical Implementation Guide

Part of OSX00124-LDAPv3 Block man-in-the-middle attacks

Associated with IA controls: ECCT-1, ECCT-2

SV-38578r1_rule LDAPv3 must block man-in-the-middle attacks.

Vulnerability discussion

To prevent LDAPv3 man-in-the middle attacks the system must be properly configured.

Check content

Open Finder. Click the Hard Drive icon. Double Click System. Double Click Library. Double Click CoreServices. Double Click Directory Utility. Click the Show Advanced Options button. Click Services tab. Click the Lock and enter the password to unlock the options (if needed). Click the LDAPv3 service. Click the Pencil icon. Highlight the Server Name/Configuration Name. Click Edit. Click on Security tab and verify the "Block man-in-the-middle attacks (requires Kerberos)" is checked. If the value is not checked, this is a finding.

Fix text

Open Finder. Click the Hard Drive icon. Double Click System. Double Click Library. Double Click CoreServices. Double Click Directory Utility. Click the Show Advanced Options button. Click Services tab. Click the Lock and enter the password to unlock the options (if needed). Click the LDAPv3 service. Click the Pencil icon. Highlight the Server Name/Configuration Name. Click Edit. Click the Security tab and select "Block man-in-the-middle attacks (requires Kerberos)".

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