Title

The TFTP daemon must operate in secure mode which provides access only to a single directory on the host file system. (Cat I impact)

Discussion

Secure mode limits TFTP requests to a specific directory. If TFTP is not running in secure mode, it may be able to write to any file or directory and may seriously impair system integrity, confidentiality, and availability.

Check Content

# grep server_args /etc/xinetd.d/tftp If the "-s" parameter is not specified, this is a finding.

Fix Text

Edit /etc/xinetd.d/tftp file and specify the "-s" parameter in server_args.

Additional Identifiers

Rule ID: SV-45888r1_rule

Vulnerability ID: V-847

Group Title: GEN005080

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.