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The TFTP daemon must operate in "secure mode" which provides access only to a single directory on the host file system.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-847 | GEN005080 | SV-35110r1_rule | ECSC-1 | High |
| Description |
|---|
| 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. |
| STIG | Date |
|---|---|
| HP-UX 11.31 Security Technical Implementation Guide | 2016-12-20 |
Details
| Check Text ( C-36593r1_chk ) |
|---|
| Determine if the TFTP daemon is installed, started, and running in secure mode. # cat /etc/inetd.conf | tr '\011' ' ' | tr -s ' ' | sed -e 's/^[ \t]*//' | grep -v "^#" | cut -f 6,7 -d " " | grep -i tftp If the tftpd process is not configured with exactly one path argument (example: "/usr/lbin/tftpd tftpd"), this is a finding. |
| Fix Text (F-31960r1_fix) |
|---|
| Edit /etc/inetd.conf and add one path argument, representing the TFTP root directory, to the tftpd command. |