Title

ExAdmin does not have correct permissions in the ExAdmin Virtual Server. (Cat II impact)

Discussion

The principle of Least Privilege ordinarily requires analysis to ensure that users and processes are granted only as much privilege as is required to function effectively, but no additional privileges that could enable mischief, either accidental or intentional. The ExAdmin Virtual Directory enables web access to E-mail and public folder documents for the Exchange 2003 System Manager. No users access this part of the application. This control determines whether the ExAdmin user will have read, write, script source access, and/or directory browsing capabilities under this virtual server. ExAdmin requires read, write, script source access, and directory browsing permissions since these are required for all of Exchange Web access.

Check Content

Validate that user permissions to ExAdmin are set correctly. Procedure: Exchange system Manager >>Administrative Groups>> [administrative group]>> Servers >> [server name] >> protocols >> HTTP >> Exchange Virtual Server >> ExAdmin >> Properties >> Access tab For Access Control, ‘Read, write, script source access, directory browsing’ should be selected. Criteria: If Access control is configured for ‘Read, write, script source access, directory browsing’ this is not a finding.

Fix Text

Configure permissions in the ExAdmin virtual server. Exchange system Manager >>Administrative Groups>> [administrative group]>> Servers >> [server name] >> protocols >> HTTP >> Exchange Virtual Server >> ExAdmin >> Properties >> Access tab >> Access control Select ‘Read, write, script source access, directory browsing’.

Additional Identifiers

Rule ID: SV-20536r1_rule

Vulnerability ID: V-18807

Group Title:

Expert Comments

CCIs tied to check.

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