Check: GEN003360
VMware ESX 3 Server:
GEN003360
(in version v1 r2)
Title
The at daemon must not execute group-writable or world-writable programs. (Cat II impact)
Discussion
If the at facility executes world-writable or group-writable programs, it is possible for the programs to be accidentally or maliciously changed or replaced without the owner's intent or knowledge. This would cause a system security breach.
Check Content
List the "at" jobs on the system. Procedure: # ls -la /var/spool/cron/atjobs /var/spool/atjobs For each "at" job file, determine which programs are executed. Procedure: # more <at job file> Check each program executed by "at" for group- or world-writable permissions. Procedure: # ls -la <at program file> If "at" executes group- or world-writable programs, this is a finding.
Fix Text
Remove group-write and world-write permissions from files executed by "at" jobs. Procedure: # chmod go-w <file>
Additional Identifiers
Rule ID: SV-988r2_rule
Vulnerability ID: V-988
Group Title: GEN003360
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000225 |
Employ the principle of least privilege, allowing only authorized accesses for users (or processes acting on behalf of users) which are necessary to accomplish assigned organizational tasks. |
Controls
Number | Title |
---|---|
AC-6 |
Least Privilege |