Title

LDAPv3 must block man-in-the-middle attacks. (Cat II impact)

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)".

Additional Identifiers

Rule ID: SV-38578r1_rule

Vulnerability ID: V-25563

Group Title:

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.