CCE-92083-5Platform: cpe:/o:amazon:linux:2 | Date: (C)2018-10-29 (M)2023-07-04 |
If the 'auditd' daemon is configured to use the
'augenrules' program to read audit rules during daemon startup (the
default), add the following line to a file with suffix '.rules' in the
directory '/etc/audit/rules.d':
'-a always,exit -F arch=b32 -S adjtimex -k audit_time_rules'
If the system is 64 bit then also add the following line:
'-a always,exit -F arch=b64 -S adjtimex -k audit_time_rules'
If the 'auditd' daemon is configured to use the 'auditctl'
utility to read audit rules during daemon startup, add the following line to
'/etc/audit/audit.rules' file:
'-a always,exit -F arch=b32 -S adjtimex -k audit_time_rules'
If the system is 64 bit then also add the following line:
'-a always,exit -F arch=b64 -S adjtimex -k audit_time_rules'
The -k option allows for the specification of a key in string form that can be
used for better reporting capability through ausearch and aureport. Multiple
system calls can be defined on the same line to save space if desired, but is
not required. See an example of multiple combined syscalls:
'-a always,exit -F arch=b64 -S adjtimex -S settimeofday -S clock_settime -k audit_time_rules'
Parameter:
[yes/no]
Technical Mechanism:
Arbitrary changes to the system time can be used to obfuscate
nefarious activities in log files, as well as to confuse network services that
are highly dependent upon an accurate system time (such as sshd). All changes
to the system time should be audited.
CCSS Severity: | CCSS Metrics: |
CCSS Score : 7.3 | Attack Vector: NETWORK |
Exploit Score: 3.9 | Attack Complexity: LOW |
Impact Score: 3.4 | Privileges Required: NONE |
Severity: HIGH | User Interaction: NONE |
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L | Scope: UNCHANGED |
| Confidentiality: LOW |
| Integrity: LOW |
| Availability: LOW |
| |
References: Resource Id | Reference |
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SCAP Repo OVAL Definition | oval:org.secpod.oval:def:48270 |
SCAP Repo OVAL Definition | oval:org.secpod.oval:def:48900 |