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IBM AIX 7.x Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • AIX sendmail logging must not be set to less than nine in the sendmail.cf file.

    &lt;VulnDiscussion&gt;If Sendmail is not configured to log at level 9, system logs may not contain the information necessary for tracking unauthori...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • AIX must not respond to ICMPv6 echo requests sent to a broadcast address.

    &lt;VulnDiscussion&gt;Responding to broadcast ICMP echo requests facilitates network mapping and provides a vector for amplification attacks.&lt;/V...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00228

    <GroupDescription></GroupDescription>
    Group
  • AIX must limit the number of concurrent sessions to 10 for all accounts and/or account types.

    &lt;VulnDiscussion&gt;Operating system management includes the ability to control the number of users and user sessions that utilize an operating s...
    Rule Medium Severity
  • SRG-OS-000066-GPOS-00034

    <GroupDescription></GroupDescription>
    Group
  • If AIX is using LDAP for authentication or account information, the /etc/ldap.conf file (or equivalent) must not contain passwords.

    &lt;VulnDiscussion&gt;Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are...
    Rule High Severity
  • SRG-OS-000104-GPOS-00051

    <GroupDescription></GroupDescription>
    Group
  • SRG-OS-000123-GPOS-00064

    <GroupDescription></GroupDescription>
    Group
  • IP forwarding for IPv4 must not be enabled on AIX unless the system is a router.

    &lt;VulnDiscussion&gt;IP forwarding permits the kernel to forward packets from one network interface to another. The ability to forward packets bet...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • AIX must provide the lock command to let users retain their session lock until users are reauthenticated.

    &lt;VulnDiscussion&gt;All systems are vulnerable if terminals are left logged in and unattended. Leaving system terminals unsecure poses a potentia...
    Rule Medium Severity
  • SRG-OS-000028-GPOS-00009

    <GroupDescription></GroupDescription>
    Group
  • UIDs reserved for system accounts must not be assigned to non-system accounts on AIX systems.

    &lt;VulnDiscussion&gt;Reserved UIDs are typically used by system software packages. If non-system accounts have UIDs in this range, they may confli...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • AIX must be configured with a default gateway for IPv6 if the system uses IPv6 unless the system is a router.

    &lt;VulnDiscussion&gt;If a system has no default gateway defined, the system is at increased risk of man-in-the-middle, monitoring, and Denial of S...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The AIX /etc/passwd, /etc/security/passwd, and/or /etc/group files must not contain a plus (+) without defining entries for NIS+ netgroups or LDAP netgroups.

    &lt;VulnDiscussion&gt;A plus (+) in system accounts files causes the system to lookup the specified entry using NIS. If the system is not using NIS...
    Rule Medium Severity
  • SRG-OS-000185-GPOS-00079

    <GroupDescription></GroupDescription>
    Group

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