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The SSH daemon must be configured for IP filtering.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-12022 | GEN005540 | SV-38955r1_rule | ECSC-1 | Medium |
| Description |
|---|
| The SSH daemon must be configured for IP filtering to provide a layered defense against connection attempts from unauthorized addresses. |
| STIG | Date |
|---|---|
| Draft AIX Security Technical Implementation Guide | 2011-08-17 |
Details
| Check Text ( C-7987r2_chk ) |
|---|
| Check the TCP wrappers configuration files to determine if sshd is configured to use TCP wrappers. Procedure: # grep sshd /etc/hosts.deny # grep sshd /etc/hosts.allow If no entries are returned, the TCP wrappers are not configured for sshd, this is a finding. |
| Fix Text (F-32332r1_fix) |
|---|
| Add appropriate IP restrictions for SSH to the /etc/hosts.deny and/or /etc/hosts.allow files. TCP Wrappers can be installed using SMIT from the AIX expansion pack as fileset netsec.options.tcpwrappers. |