Check: PHTN-30-000012
VMware vSphere 7.0 vCenter Appliance Photon OS STIG:
PHTN-30-000012
(in versions v1 r3 through v1 r1)
Title
The Photon operating system must be configured to audit the execution of privileged functions. (Cat II impact)
Discussion
Misuse of privileged functions, either intentionally or unintentionally by authorized users, or by unauthorized external entities that have compromised information system accounts, is a serious and ongoing concern and can have significant adverse impacts on organizations. Auditing all actions by superusers is one way to detect such misuse and identify the risk from insider threats and the advanced persistent threat.
Check Content
At the command line, run the following command: # auditctl -l | grep execve Expected result: -a always,exit -F arch=b32 -S execve -C uid!=euid -F euid=0 -F key=execpriv -a always,exit -F arch=b64 -S execve -C uid!=euid -F euid=0 -F key=execpriv -a always,exit -F arch=b32 -S execve -C gid!=egid -F egid=0 -F key=execpriv -a always,exit -F arch=b64 -S execve -C gid!=egid -F egid=0 -F key=execpriv If the output does not match the expected result, this is a finding. Note: This check depends on the auditd service to be in a running state for accurate results. Enabling the auditd service is done in control PHTN-30-000013.
Fix Text
Navigate to and open: /etc/audit/rules.d/audit.STIG.rules Add the following lines: -a always,exit -F arch=b32 -S execve -C uid!=euid -F euid=0 -F key=execpriv -a always,exit -F arch=b64 -S execve -C uid!=euid -F euid=0 -F key=execpriv -a always,exit -F arch=b32 -S execve -C gid!=egid -F egid=0 -F key=execpriv -a always,exit -F arch=b64 -S execve -C gid!=egid -F egid=0 -F key=execpriv At the command line, run the following command to load the new audit rules: # /sbin/augenrules --load Note: A new "audit.STIG.rules" file is provided for placement in "/etc/audit/rules.d" that contains all rules needed for auditd. Note: An older "audit.STIG.rules" may exist if the file exists and references older "GEN" SRG IDs. This file can be removed and replaced as necessary with an updated one.
Additional Identifiers
Rule ID: SV-256489r887141_rule
Vulnerability ID: V-256489
Group Title: SRG-OS-000042-GPOS-00020
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000135 |
The information system generates audit records containing the organization-defined additional, more detailed information that is to be included in the audit records. |
Controls
Number | Title |
---|---|
AU-3 (1) |
Additional Audit Information |