Check: NET-IDPS-029
Network Infrastructure Policy STIG:
NET-IDPS-029
(in versions v10 r6 through v9 r2)
Title
If a Secure File Transfer Protocol (SFTP) server is used to provide updates to the sensors, the server must be configured to allow read-only access to the files within the directory on which the signature packs are placed. (Cat II impact)
Discussion
In a large scale IDPS deployment, it is common to have an automated update process implemented. This is accomplished by having the updates downloaded on a dedicated SFTP server within the management network. The SFTP server should be configured to allow read-only access to the files within the directory on which the signature packs are placed, and then only from the account that the sensors will use. The sensors can then be configured to automatically check the SFTP server periodically to look for the new signature packs and to update themselves once they have been tested.
Check Content
If the signatures are located on a server, verify that the directories on which the signature packs are placed are protected by read-only access. If the directories are not set for read-only access, this is a finding.
Fix Text
Modify the access restrictions to prevent the signatures from being updated.
Additional Identifiers
Rule ID: SV-251342r805981_rule
Vulnerability ID: V-251342
Group Title: NET-IDPS-029
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000366 |
The organization implements the security configuration settings. |
Controls
Number | Title |
---|---|
CM-6 |
Configuration Settings |