Add npm sudo config audit script
Checks npm prefix ownership, PATH wiring, cache ownership, shell history for sudo npm usage, and n/nvm version manager config. Runs daily at 08:10 via cron and on initial setup.sh run. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
pdm
197
check-npm-sudo-config.sh
Executable file
197
check-npm-sudo-config.sh
Executable file
@@ -0,0 +1,197 @@
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#!/usr/bin/env bash
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# check-npm-sudo-config.sh
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# Audits npm configuration on this VM for sudo-related issues and recommends fixes.
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set -euo pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# shellcheck source=config.sh
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source "$SCRIPT_DIR/config.sh"
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send_telegram() {
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curl -s -X POST "https://api.telegram.org/bot${TELEGRAM_BOT_TOKEN}/sendMessage" \
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-d chat_id="${TELEGRAM_CHAT_ID}" \
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-d text="$1" \
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-d parse_mode="HTML" > /dev/null || true
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}
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HOSTNAME=$(hostname)
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DATE=$(date)
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RED='\033[0;31m'
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YELLOW='\033[1;33m'
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GREEN='\033[0;32m'
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BOLD='\033[1m'
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RESET='\033[0m'
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ISSUES=0
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WARNINGS=0
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log() { echo "$*"; }
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ok() { printf "${GREEN}✓${RESET} %s\n" "$*"; }
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warn() { printf "${YELLOW}⚠${RESET} %s\n" "$*"; (( WARNINGS++ )) || true; }
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fail() { printf "${RED}✗${RESET} %s\n" "$*"; (( ISSUES++ )) || true; }
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rec() { printf " ${YELLOW}→${RESET} %s\n" "$*"; }
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header() { echo ""; echo "=========================================="; echo "$*"; echo "=========================================="; }
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log "=========================================="
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log " npm sudo config audit"
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log "=========================================="
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log "Hostname : $HOSTNAME"
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log "Date : $DATE"
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# ── 1. npm present? ───────────────────────────────────────────────────────────
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header "1. npm availability"
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if ! command -v npm &>/dev/null; then
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warn "npm not found in PATH — skipping remaining checks"
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echo ""
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echo "RESULT: 0 issue(s), 1 warning(s)"
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exit 0
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fi
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NPM_PATH=$(command -v npm)
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ok "npm found: $NPM_PATH"
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# ── 2. npm prefix ─────────────────────────────────────────────────────────────
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header "2. npm prefix"
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PREFIX=$(npm config get prefix 2>/dev/null || echo "unknown")
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log "Current prefix: $PREFIX"
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if [[ "$PREFIX" == "/usr" || "$PREFIX" == "/usr/local" ]]; then
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fail "npm prefix is $PREFIX (system-wide) — global installs require sudo"
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rec "npm config set prefix ~/.npm-global"
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rec "Add to ~/.profile: export PATH=\"\$HOME/.npm-global/bin:\$PATH\""
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elif [[ "$PREFIX" == "unknown" ]]; then
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warn "Could not determine npm prefix"
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else
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PREFIX_OWNER=$(stat -c "%U" "$PREFIX" 2>/dev/null || echo "unknown")
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if [[ "$PREFIX_OWNER" == "root" ]]; then
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fail "npm prefix $PREFIX is owned by root — global installs require sudo"
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rec "sudo chown -R \$(whoami) $PREFIX"
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rec "Or set a user-owned prefix: npm config set prefix ~/.npm-global"
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else
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ok "npm prefix is $PREFIX (owned by $PREFIX_OWNER)"
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fi
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fi
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# ── 3. .npmrc ────────────────────────────────────────────────────────────────
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header "3. ~/.npmrc"
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if [[ -f "$HOME/.npmrc" ]]; then
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log "$(cat "$HOME/.npmrc")"
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NPM_PREFIX_LINE=$(grep "^prefix=" "$HOME/.npmrc" 2>/dev/null || true)
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if [[ -n "$NPM_PREFIX_LINE" ]]; then
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ok ".npmrc explicitly sets: $NPM_PREFIX_LINE"
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else
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warn ".npmrc exists but does not pin the prefix"
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rec "npm config set prefix ~/.npm-global"
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fi
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else
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warn "No ~/.npmrc — prefix is not pinned to a user directory"
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rec "npm config set prefix ~/.npm-global"
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fi
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# ── 4. prefix/bin in PATH ─────────────────────────────────────────────────────
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header "4. npm prefix bin in PATH"
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if [[ "$PREFIX" != "unknown" ]]; then
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PREFIX_BIN="${PREFIX}/bin"
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if echo "$PATH" | tr ':' '\n' | grep -qxF "$PREFIX_BIN"; then
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ok "$PREFIX_BIN is in PATH"
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else
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warn "$PREFIX_BIN is NOT in PATH — globally installed binaries won't run"
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PROFILE_FILE="$HOME/.profile"
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[[ -f "$HOME/.zshrc" ]] && PROFILE_FILE="$HOME/.zshrc"
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rec "Add to $PROFILE_FILE: export PATH=\"$PREFIX_BIN:\$PATH\""
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rec "Then reload: source $PROFILE_FILE"
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fi
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fi
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# ── 5. Root-owned files in npm prefix ────────────────────────────────────────
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header "5. Root-owned files in npm prefix"
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if [[ -d "$PREFIX" ]]; then
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ROOT_FILES=$(find "$PREFIX" -maxdepth 3 -user root 2>/dev/null | head -5 || true)
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if [[ -n "$ROOT_FILES" ]]; then
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fail "Root-owned files found in npm prefix (past sudo npm usage):"
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echo "$ROOT_FILES"
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rec "sudo chown -R \$(whoami) $PREFIX"
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else
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ok "No root-owned files in $PREFIX"
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fi
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else
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ok "npm prefix directory does not exist yet (no global installs made)"
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fi
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# ── 6. sudo npm in shell history ─────────────────────────────────────────────
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header "6. Shell history — sudo npm usage"
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SUDO_NPM_FOUND=false
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for hfile in "$HOME/.bash_history" "$HOME/.zsh_history"; do
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if [[ -f "$hfile" ]]; then
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HITS=$(grep -c "sudo npm" "$hfile" 2>/dev/null || true)
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if [[ "$HITS" -gt 0 ]]; then
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warn "Found $HITS occurrence(s) of \"sudo npm\" in $hfile"
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SUDO_NPM_FOUND=true
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fi
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fi
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done
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$SUDO_NPM_FOUND || ok "No \"sudo npm\" in shell history"
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# ── 7. npm cache ownership ───────────────────────────────────────────────────
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header "7. npm cache ownership"
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CACHE_DIR=$(npm config get cache 2>/dev/null || echo "$HOME/.npm")
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if [[ -d "$CACHE_DIR" ]]; then
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ROOT_CACHE=$(find "$CACHE_DIR" -maxdepth 2 -user root 2>/dev/null | head -3 || true)
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if [[ -n "$ROOT_CACHE" ]]; then
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fail "Root-owned files in npm cache ($CACHE_DIR) — will cause EACCES errors"
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rec "sudo chown -R \$(whoami) $CACHE_DIR"
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else
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ok "npm cache ($CACHE_DIR) is user-owned"
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fi
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else
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ok "npm cache directory does not exist yet"
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fi
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# ── 8. Node version manager ───────────────────────────────────────────────────
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header "8. Node version manager"
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if command -v n &>/dev/null; then
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N_PREFIX_VAL="${N_PREFIX:-}"
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if [[ -z "$N_PREFIX_VAL" ]]; then
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warn "n is installed but N_PREFIX is not set — n defaults to /usr/local (requires sudo)"
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rec "Add to ~/.profile: export N_PREFIX=\$HOME/.n"
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rec "Add to ~/.profile: export PATH=\$PATH:\$N_PREFIX/bin"
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else
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ok "n is installed, N_PREFIX=$N_PREFIX_VAL"
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fi
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elif [[ -s "$HOME/.nvm/nvm.sh" ]] || command -v nvm &>/dev/null 2>&1; then
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ok "nvm is managing Node (sudo-free by design)"
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elif command -v fnm &>/dev/null; then
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ok "fnm is managing Node (sudo-free by design)"
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else
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ok "No Node version manager detected"
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fi
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# ── Summary ───────────────────────────────────────────────────────────────────
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header "SUMMARY"
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log "Scan completed at: $(date)"
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log ""
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if [[ $ISSUES -gt 0 ]]; then
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printf "${RED}✗ %d issue(s) and %d warning(s) — see recommendations above${RESET}\n" "$ISSUES" "$WARNINGS"
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send_telegram "⚠️ <b>npm sudo config issues</b>
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Host: <code>${HOSTNAME}</code>
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Issues: ${ISSUES} | Warnings: ${WARNINGS}
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Run manually: bash check-npm-sudo-config.sh"
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exit 1
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elif [[ $WARNINGS -gt 0 ]]; then
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printf "${YELLOW}⚠ Clean but %d warning(s) — see recommendations above${RESET}\n" "$WARNINGS"
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exit 0
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else
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printf "${GREEN}✓ npm is correctly configured on %s${RESET}\n" "$HOSTNAME"
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exit 0
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fi
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14
setup.sh
14
setup.sh
@@ -31,6 +31,7 @@ fi
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# ── Make scripts executable ────────────────────────────────────────────────────
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chmod +x "$SCRIPT_DIR/npm-security-check.sh"
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chmod +x "$SCRIPT_DIR/check-nextjs-rce.sh"
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chmod +x "$SCRIPT_DIR/check-npm-sudo-config.sh"
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# ── Create logs directory ──────────────────────────────────────────────────────
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mkdir -p "$SCRIPT_DIR/logs"
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@@ -38,7 +39,8 @@ mkdir -p "$SCRIPT_DIR/logs"
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# ── Cron jobs ──────────────────────────────────────────────────────────────────
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CRON_1="0 8 * * * $SCRIPT_DIR/npm-security-check.sh >> $SCRIPT_DIR/logs/npm-security-check-\$(date +\%Y\%m\%d).log 2>&1"
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CRON_2="5 8 * * * $SCRIPT_DIR/check-nextjs-rce.sh >> $SCRIPT_DIR/logs/check-nextjs-rce-\$(date +\%Y\%m\%d).log 2>&1"
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CRON_3="0 9 * * * find $SCRIPT_DIR/logs -name '*.log' -mtime +60 -delete"
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CRON_3="10 8 * * * $SCRIPT_DIR/check-npm-sudo-config.sh >> $SCRIPT_DIR/logs/check-npm-sudo-config-\$(date +\%Y\%m\%d).log 2>&1"
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CRON_4="0 9 * * * find $SCRIPT_DIR/logs -name '*.log' -mtime +60 -delete"
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EXISTING=$(crontab -l 2>/dev/null || true)
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@@ -56,10 +58,17 @@ else
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echo "Cron job registered: check-nextjs-rce.sh daily at 08:05."
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fi
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if echo "$EXISTING" | grep -qF "check-npm-sudo-config.sh"; then
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echo "Cron job for check-npm-sudo-config.sh already registered — skipping."
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else
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(crontab -l 2>/dev/null; echo "$CRON_3") | crontab -
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echo "Cron job registered: check-npm-sudo-config.sh daily at 08:10."
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fi
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if echo "$EXISTING" | grep -qF "logs -name '*.log'"; then
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echo "Log cleanup cron already registered — skipping."
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else
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(crontab -l 2>/dev/null; echo "$CRON_3") | crontab -
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(crontab -l 2>/dev/null; echo "$CRON_4") | crontab -
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echo "Cron job registered: log cleanup daily at 09:00 (60 day retention)."
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fi
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@@ -90,5 +99,6 @@ echo ""
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echo "Running initial security scan..."
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bash "$SCRIPT_DIR/npm-security-check.sh" >> "$SCRIPT_DIR/logs/npm-security-check-$(date +%Y%m%d).log" 2>&1 && echo "npm-security-check: done." || echo "npm-security-check: issues found — check Telegram."
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bash "$SCRIPT_DIR/check-nextjs-rce.sh" >> "$SCRIPT_DIR/logs/check-nextjs-rce-$(date +%Y%m%d).log" 2>&1 && echo "check-nextjs-rce: done." || echo "check-nextjs-rce: issues found — check Telegram."
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bash "$SCRIPT_DIR/check-npm-sudo-config.sh" >> "$SCRIPT_DIR/logs/check-npm-sudo-config-$(date +%Y%m%d).log" 2>&1 && echo "check-npm-sudo-config: done." || echo "check-npm-sudo-config: issues found — check Telegram."
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echo ""
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echo "Initial scan complete. Check Telegram for any alerts."
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