Check: OL6-00-000198
Oracle Linux 6 STIG:
OL6-00-000198
(in versions v2 r7 through v1 r9)
Title
The audit system must be configured to audit all use of setuid and setgid programs. (Cat III impact)
Discussion
Privileged programs are subject to escalation-of-privilege attacks, which attempt to subvert their normal role of providing some necessary but limited capability. As such, motivation exists to monitor these programs for unusual activity.
Check Content
To verify that auditing of privileged command use is configured, run the following command once for each local partition [PART] to find relevant setuid / setgid programs: $ sudo find [PART] -xdev -type f -perm /6000 2>/dev/null Run the following command to verify entries in the audit rules for all programs found with the previous command: $ sudo grep path /etc/audit/audit.rules It should be the case that all relevant setuid / setgid programs have a line in the audit rules. If that is not the case, this is a finding.
Fix Text
At a minimum, the audit system should collect the execution of privileged commands for all users and root. To find the relevant setuid / setgid programs, run the following command for each local partition [PART]: $ sudo find [PART] -xdev -type f -perm /6000 2>/dev/null Then, for each setuid / setgid program on the system, add a line of the following form to "/etc/audit/audit.rules", where [SETUID_PROG_PATH] is the full path to each setuid / setgid program in the list: -a always,exit -F path=[SETUID_PROG_PATH] -F perm=x -F auid>=500 -F auid!=4294967295 -k privileged
Additional Identifiers
Rule ID: SV-219556r854343_rule
Vulnerability ID: V-219556
Group Title: SRG-OS-000327
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000040 |
The organization audits any use of privileged accounts, or roles, with access to organization-defined security functions or security-relevant information, when accessing other system functions. |
CCI-002234 |
The information system audits the execution of privileged functions. |
Controls
Number | Title |
---|---|
AC-6 (9) |
Auditing Use Of Privileged Functions |