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Check: GEN007140

SUSE Linux Enterprise Server v11 for System z STIG: GEN007140 (in versions v1 r12 through v1 r9)

Title

The Lightweight User Datagram Protocol (UDP-Lite) must be disabled unless required. (Cat II impact)

Discussion

The UDP-Lite is a proposed transport layer protocol. This protocol is not yet widely used. Binding this protocol to the network stack increases the attack surface of the host. Unprivileged local processes may be able to cause the system to dynamically load a protocol handler by opening a socket using the protocol.

Check Content

If there is no UDP-Lite protocol handler available for the system, this is not applicable. Determine if the UDP-Lite protocol handler is prevented from dynamic loading. If it is not, this is a finding.

Fix Text

Configure the system to prevent the dynamic loading of the UDP-Lite protocol handler.

Additional Identifiers

Rule ID: SV-46099r1_rule

Vulnerability ID: V-22517

Group Title: GEN007140

Expert Comments

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CCIs

CCIs tied to check.

Number	Definition
CCI-000382	The organization configures the information system to prohibit or restrict the use of organization-defined functions, ports, protocols, and/or services.

Controls

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

Number	Title
CM-7	Least Functionality