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

Determine if tftpd is running in secure mode. # grep tftp /etc/inetd.conf If any returned service line does not use the "-s" parameter to tftpd, this is a finding.

Fix Text

Edit /etc/inetd.conf and add the "-s" parameter to tftpd.

Additional Identifiers

Rule ID: SV-28418r1_rule

Vulnerability ID: V-847

Group Title:

Expert Comments

CCIs tied to check.

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