Check: RHEL-07-040700
Red Hat Enterprise Linux 7 STIG:
RHEL-07-040700
(in versions v3 r14 through v1 r1)
Title
The Red Hat Enterprise Linux operating system must not have the Trivial File Transfer Protocol (TFTP) server package installed if not required for operational support. (Cat I impact)
Discussion
If TFTP is required for operational support (such as the transmission of router configurations) its use must be documented with the Information System Security Officer (ISSO), restricted to only authorized personnel, and have access control rules established.
Check Content
Verify a TFTP server has not been installed on the system. Check to see if a TFTP server has been installed with the following command: # yum list installed tftp-server tftp-server-0.49-9.el7.x86_64.rpm If TFTP is installed and the requirement for TFTP is not documented with the ISSO, this is a finding.
Fix Text
Remove the TFTP package from the system with the following command: # yum remove tftp-server
Additional Identifiers
Rule ID: SV-204621r853996_rule
Vulnerability ID: V-204621
Group Title: SRG-OS-000480-GPOS-00227
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000318 |
The organization audits and reviews activities associated with configuration-controlled changes to the system. |
| CCI-000368 |
The organization documents any deviations from the established configuration settings for organization-defined information system components based on organization-defined operational requirements. |
| CCI-001812 |
The information system prohibits user installation of software without explicit privileged status. |
| CCI-001813 |
The information system enforces access restrictions. |
| CCI-001814 |
The Information system supports auditing of the enforcement actions. |