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The IPv6 protocol handler must be prevented from dynamic loading unless needed.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22542 | GEN007720 | SV-38922r1_rule | ECSC-1 | Medium |
| Description |
|---|
| 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. |
| STIG | Date |
|---|---|
| AIX 5.3 Security Technical Implementation Guide | 2012-05-25 |
Details
| Check Text ( C-37908r1_chk ) |
|---|
| 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 (F-33166r1_fix) |
|---|
| There is not an option to not load IPv6. Remove unnecessary IPv6 addresses from network interfaces via smit. #smit chinet6 |