The system must be checked weekly for unauthorized setgid files, as well as, unauthorized modification to authorized setgid files.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-804	GEN002460	SV-804r2_rule	DCSL-1	Medium

Description
Files with the setgid bit set will allow anyone running these files to be temporarily assigned the group id of the file. While many system files depend on these attributes for proper operation, security problems can result if setgid is assigned to programs that allow reading and writing of files, or shell escapes.

STIG	Date
SOLARIS 9 X86 SECURITY TECHNICAL IMPLEMENTATION GUIDE	2015-10-01

Details

Check Text ( C-8027r2_chk )
Determine if a weekly automated or manual process is used to generate a list of setgid files on the system and compare it with the prior list. If no such process is in place, this is a finding.

Fix Text (F-958r2_fix)
Establish a weekly automated or manual process to generate a list of setgid files on the system and compare it with the prior list. To create a list of setgid files use the following command. # find / -perm -2000 > setgid-file-list