Ensure sudo pwfeedback is configured

How it is checked

Audit method: Shell command

alt0() { command -v grep >/dev/null 2>&1 || { echo "step1: grep not installed"; return 1; }; o=$(bash -c 'grep -rPi -- '"'"'^\h*Defaults\h+([^#]+,\h*)?pwfeedback\b'"'"' /etc/sudoers /etc/sudoers.d/' 2>/dev/null); [ -z "$o" ] || { echo "step1: $o" | head -c 300; return 1; }; }; if alt0; then echo compliant; fi

Expected output

compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Ensure sudo does not display feedback while the password is typed. Edit the appropriate sudoers file with visudo and remove any line that enables pwfeedback, or explicitly disable it: # visudo Add or correct the line: Defaults !pwfeedback

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

tmaegis scan --target linux