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-39426	GEN002460-ESXI5-20047	SV-51284r2_rule		Medium

Description
Files with the setgid bit set will allow anyone running these files to be temporarily assigned the GID 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
VMware ESXi Server 5.0 Security Technical Implementation Guide	2017-01-06

Details

Check Text ( C-46700r2_chk )
Ask the SA if the system is checked for unauthorized setgid files on a weekly basis. To manually perform the check, disable lock down mode, enable the ESXi Shell, and execute the following command: # find / -perm -2000 -exec ls -lL {} \; Re-enable lock down mode. If no automated or manual process is in place, this is a finding.

Fix Text (F-44439r2_fix)
Configure the system to check for unauthorized setgid files on a weekly basis. Refer to the Check Content section above for the basic command structure to search the file system. Additionally, ensure persistence of the command output by storing results to a target located on persistent storage.