Check: GEN000253
VMware ESX 3 Server:
GEN000253
(in version v1 r2)
Title
The time synchronization configuration file (such as /etc/ntp.conf) must not have an extended ACL. (Cat II impact)
Discussion
A synchronized system clock is critical for the enforcement of time-based policies and the correlation of logs and audit records with other systems. If an illicit time source is used for synchronization, the integrity of system logs and the security of the system could be compromised. If the configuration files controlling time synchronization are not protected, unauthorized modifications could result in the failure of time synchronization.
Check Content
Check for an extended ACL on the NTP configuration file. # ls -l ntp.conf If the permissions contain a '+' the file has an extended ACL, this is a finding.
Fix Text
Remove the extended ACL from the ntp.conf file.
Additional Identifiers
Rule ID: SV-28723r1_rule
Vulnerability ID: V-22297
Group Title: GEN000253
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000225 |
The organization employs the concept of least privilege, allowing only authorized accesses for users (and processes acting on behalf of users) which are necessary to accomplish assigned tasks in accordance with organizational missions and business functions. |
Controls
| Number | Title |
|---|---|
| AC-6 |
Least Privilege |