Navigate

Check: GEN006220

VMware ESX 3 Server: GEN006220 (in version v1 r2)

Title

The smb.conf file must use the hosts option to restrict access to Samba. (Cat II impact)

Discussion

Samba increases the attack surface of the system and must be restricted to communicate only with systems requiring access.

Check Content

Examine the smb.conf file. Default locations for this file include /etc, /etc/sfw, /etc/samba, and /etc/sfw/samba. If the system has Samba installed in non-standard locations, also check the smb.conf in those locations. # more /etc/smb.conf /etc/sfw/smb.conf /etc/samba/smb.conf /etc/sfw/samba/smb.conf If the hosts option is not present to restrict access to a list of authorized hosts and networks, this is a finding.

Fix Text

Edit the smb.conf file and set the hosts option to permit only authorized hosts to access Samba.

Additional Identifiers

Rule ID: SV-1030r3_rule

Vulnerability ID: V-1030

Group Title: GEN006220

Expert Comments

Expert comments are only available to logged-in users.

CCIs

CCIs tied to check.

Number	Definition
CCI-000225	The organization employs the concept of least privilege, allowing only authorized accesses for users (and processes acting on behalf of users) which are necessary to accomplish assigned tasks in accordance with organizational missions and business functions.

Controls

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

Number	Title
AC-6	Least Privilege