Check: GEN007720
AIX 5.3 STIG:
GEN007720
(in version v1 r3)
Title
The IPv6 protocol handler must be prevented from dynamic loading unless needed. (Cat II impact)
Discussion
IPv6 is the next generation of the Internet protocol. 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
Determine if the IPv6 protocol handler is prevented from dynamic loading. AIX comes with IPv6 protocol handler installed and active. The only IPv6 address configured by default is the loopback localhost adapter. #ifconfig -a If there is any unneeded IPv6 addresses on network interfaces, this is a finding.
Fix Text
There is not an option to not load IPv6. Remove unnecessary IPv6 addresses from network interfaces via smit. #smit chinet6
Additional Identifiers
Rule ID: SV-38922r1_rule
Vulnerability ID: V-22542
Group Title:
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-001551 |
The organization defines approved authorizations for controlling the flow of information between interconnected systems. |
Controls
Number | Title |
---|---|
AC-4 |
Information Flow Enforcement |