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The alias files must be owned by root.


Overview

Finding ID Version Rule ID IA Controls Severity
V-89643 VRAU-SL-000560 SV-100293r1_rule Medium
Description
If the alias and aliases.db files are not owned by root, an unauthorized user may modify the file to add aliases to run malicious code or redirect email.
STIG Date
VMware vRealize Automation 7.x SLES Security Technical Implementation Guide 2018-10-12

Details

Check Text ( C-89335r1_chk )
Check the ownership of the alias file:

# ls -lL /etc/aliases
# ls -lL /etc/aliases.db

If all the files are not owned by "root", this is a finding.
Fix Text (F-96385r1_fix)
Change the owner of the alias files to "root":

# chown root /etc/aliases
# chown root /etc/aliases.db