Title

The Unified Communications Session Manager, when using locally stored user accounts, must automatically lock the account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes are exceeded. (Cat II impact)

Discussion

By limiting the number of failed login attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute forcing, is reduced. Limits are imposed by locking the account. This applies to network elements that have the concept of a user account (e.g., VPN, ALG, and proxy) as well as devices that can control traffic flow based on access authorizations (firewalls, IDPS).

Check Content

Verify the Unified Communications Session Manager, when using locally stored user accounts, automatically locks the account until released by an administrator when three unsuccessful logon attempts in 15 minutes are exceeded. If the Unified Communications Session Manager, when using locally stored user accounts, does not automatically lock the account until released by an administrator when three unsuccessful logon attempts in 15 minutes are exceeded, this is a finding.

Fix Text

Configure the Unified Communications Session Manager, when using locally stored user accounts, to automatically lock the account until released by an administrator when three unsuccessful logon attempts in 15 minutes are exceeded.

Additional Identifiers

Rule ID: SRG-NET-000395-VVSM-00010_rule

Vulnerability ID: SRG-NET-000395-VVSM-00010

Group Title: SRG-NET-000395-VVSM-00010

Expert Comments

CCIs tied to check.

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