IBM AIX 7.x Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
If the AIX host is running an SMTP service, the SMTP greeting must not provide version information.
<VulnDiscussion>The version of the SMTP service can be used by attackers to plan an attack based on vulnerabilities present in the specific v...Rule Low Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
SMTP service must not have the EXPN or VRFY features active on AIX systems.
<VulnDiscussion>The SMTP EXPN function allows an attacker to determine if an account exists on a system, providing significant assistance to ...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
All global initialization file executable search paths must contain only absolute paths.
<VulnDiscussion>Failure to restrict system access to authenticated users negatively impacts operating system security.</VulnDiscussion>...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The SMTP service HELP command must not be enabled on AIX.
<VulnDiscussion>The HELP command should be disabled to mask version information. The version of the SMTP service software could be used by at...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
NIS maps must be protected through hard-to-guess domain names on AIX.
<VulnDiscussion>The use of hard-to-guess NIS domain names provides additional protection from unauthorized access to the NIS directory inform...Rule Medium Severity
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