STIGQter: STIG Summary: Oracle Linux 6 Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 23 Apr 2021:

The audit system must be configured to audit all attempts to alter system time through adjtimex.

DISA Rule

SV-208882r603263_rule

Vulnerability Number

V-208882

Group Title

SRG-OS-000062

Rule Version

OL6-00-000165

Severity

CAT III

CCI(s)

• CCI-000169 - The information system provides audit record generation capability for the auditable events defined in AU-2 a. at organization-defined information system components.

Weight

10

Fix Recommendation

On a 32-bit system, add the following to "/etc/audit/audit.rules":

# audit_time_rules
-a always,exit -F arch=b32 -S adjtimex -k audit_time_rules

If the system is 64-bit, then also add the following:

# audit_time_rules
-a always,exit -F arch=b64 -S adjtimex -k audit_time_rules

Check Contents

To determine if the system is configured to audit calls to the "adjtimex" system call, run the following command:

$ sudo grep -w "adjtimex" /etc/audit/audit.rules

-a always,exit -F arch=b32 -S adjtimex -k audit_time_rules
-a always,exit -F arch=b64 -S adjtimex -k audit_time_rules

If the system is 64-bit and does not return a rule for both "b32" and "b64" architectures, this is a finding.
If the system is not configured to audit the "adjtimex" system call, this is a finding.

Vulnerability Number

V-208882

Documentable

False

Rule Version

OL6-00-000165

Severity Override Guidance

To determine if the system is configured to audit calls to the "adjtimex" system call, run the following command:

$ sudo grep -w "adjtimex" /etc/audit/audit.rules

-a always,exit -F arch=b32 -S adjtimex -k audit_time_rules
-a always,exit -F arch=b64 -S adjtimex -k audit_time_rules

If the system is 64-bit and does not return a rule for both "b32" and "b64" architectures, this is a finding.
If the system is not configured to audit the "adjtimex" system call, this is a finding.

Check Content Reference

M

Target Key

2928

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