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

From Oracle Linux 5 Security Technical Implementation Guide

Associated with: CCI-000366

SV-63119r1_rule The TFTP daemon must operate in secure mode which provides access only to a single directory on the host file system.

Vulnerability 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.

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