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IBM AIX 7.x Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000365-GPOS-00152

    <GroupDescription></GroupDescription>
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  • AIX must disable Kerberos Authentication in ssh config file to enforce access restrictions.

    &lt;VulnDiscussion&gt;Without auditing the enforcement of access restrictions against changes to the application configuration, it will be difficul...
    Rule Medium Severity
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  • SRG-OS-000373-GPOS-00158

    <GroupDescription></GroupDescription>
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  • If GSSAPI authentication is not required on AIX, the SSH daemon must disable GSSAPI authentication.

    &lt;VulnDiscussion&gt;GSSAPI authentication is used to provide additional authentication mechanisms to applications. Allowing GSSAPI authentication...
    Rule Medium Severity
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  • SRG-OS-000384-GPOS-00167

    <GroupDescription></GroupDescription>
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  • AIX must setup SSH daemon to disable revoked public keys.

    &lt;VulnDiscussion&gt;Without configuring a local cache of revocation data, there is the potential to allow access to users who are no longer autho...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • AIX SSH daemon must be configured to only use Message Authentication Codes (MACs) employing FIPS 140-2 approved cryptographic hash algorithms.

    &lt;VulnDiscussion&gt;DoD information systems are required to use FIPS 140-2 approved cryptographic hash functions.&lt;/VulnDiscussion&gt;&lt;False...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • The AIX SSH daemon must be configured for IP filtering.

    &lt;VulnDiscussion&gt;The SSH daemon must be configured for IP filtering to provide a layered defense against connection attempts from unauthorized...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • The AIX SSH daemon must not allow compression.

    &lt;VulnDiscussion&gt;If compression is allowed in an SSH connection prior to authentication, vulnerabilities in the compression software could res...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • AIX must turn on SSH daemon privilege separation.

    &lt;VulnDiscussion&gt;SSH daemon privilege separation causes the SSH process to drop root privileges when not needed, which would decrease the impa...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • AIX must turn on SSH daemon reverse name checking.

    &lt;VulnDiscussion&gt;If reverse name checking is off, SSH may allow a remote attacker to circumvent security policies and attempt to or actually l...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • AIX SSH daemon must perform strict mode checking of home directory configuration files.

    &lt;VulnDiscussion&gt;If other users have access to modify user-specific SSH configuration files, they may be able to log into the system as anothe...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • AIX must turn off X11 forwarding for the SSH daemon.

    &lt;VulnDiscussion&gt;X11 forwarding over SSH allows for the secure remote execution of X11-based applications. This feature can increase the attac...
    Rule Medium Severity
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