Initial commit: consolidate security scripts

Bring in check-nextjs-rce.sh and README-scanner.md from existing Gitea repo, plus npm-security-check.sh from local bin/security.
2026-04-17 21:51:27 +01:00
commit 93b02d0124
3 changed files with 461 additions and 0 deletions
--- a/README-scanner.md
+++ b/README-scanner.md
@@ -0,0 +1,71 @@
+# Next.js RCE Vulnerability Scanner
+
+Quick scanner for CVE-2025-66478 / CVE-2025-55182 (CVSS 10.0)
+
+## Usage
+
+```bash
+curl -o check-nextjs-rce.sh http://100.120.125.113:3000/pdm/security-tools/raw/branch/main/check-nextjs-rce.sh
+  chmod +x check-nextjs-rce.sh
+  sudo ./check-nextjs-rce.sh
+```
+
+## What it checks
+
+- Scans all package.json files on the system
+- Checks Docker containers for Next.js
+- Identifies vulnerable versions (15.0-15.5.6, 16.0-16.0.6)
+
+## Patched Versions
+
+- Next.js 15.5.7+
+- Next.js 16.0.7+
+
+## How to Update Next.js
+
+### For npm projects:
+```bash
+# Update to latest patched version
+npm install next@latest
+
+# Or specify exact version
+npm install next@15.5.7
+```
+
+### For yarn projects:
+```bash
+# Update to latest patched version
+yarn upgrade next@latest
+
+# Or specify exact version
+yarn upgrade next@15.5.7
+```
+
+### For Docker containers:
+```bash
+# 1. Update package.json in your project
+sed -i 's/"next": "15\.[0-5]\.[0-6]"/"next": "15.5.7"/g' package.json
+
+# 2. Rebuild Docker image
+docker compose build
+
+# 3. Restart container
+docker compose down
+docker compose up -d
+
+# 4. Verify version
+docker compose exec <container-name> npm list next
+```
+
+### Verify the update:
+```bash
+# Check installed version
+npm list next
+# or
+yarn list next
+
+# Verify no vulnerabilities remain
+npm audit
+# or
+yarn audit
+```
--- a/check-nextjs-rce.sh
+++ b/check-nextjs-rce.sh
@@ -0,0 +1,123 @@
+#!/bin/bash
+# Next.js CVE-2025-66478 / CVE-2025-55182 Vulnerability Checker
+# Checks if Next.js installations are vulnerable to critical RCE
+
+echo "=== Next.js RCE Vulnerability Scanner ==="
+echo "CVE-2025-66478 / CVE-2025-55182 (CVSS 10.0)"
+echo ""
+
+# Colors
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+VULNERABLE=0
+SAFE=0
+UNKNOWN=0
+
+# Function to check if version is vulnerable
+check_version() {
+    local version=$1
+    local major=$(echo $version | cut -d. -f1)
+    local minor=$(echo $version | cut -d. -f2)
+    local patch=$(echo $version | cut -d. -f3)
+    
+    # Vulnerable versions:
+    # 15.0.0 - 15.0.4
+    # 15.1.0 - 15.1.8
+    # 15.2.0 - 15.2.5
+    # 15.3.0 - 15.3.5
+    # 15.4.0 - 15.4.7
+    # 15.5.0 - 15.5.6
+    # 16.0.0 - 16.0.6
+    
+    if [ "$major" = "15" ]; then
+        if [ "$minor" = "0" ] && [ "$patch" -le "4" ]; then
+            return 1  # Vulnerable
+        elif [ "$minor" = "1" ] && [ "$patch" -le "8" ]; then
+            return 1
+        elif [ "$minor" = "2" ] && [ "$patch" -le "5" ]; then
+            return 1
+        elif [ "$minor" = "3" ] && [ "$patch" -le "5" ]; then
+            return 1
+        elif [ "$minor" = "4" ] && [ "$patch" -le "7" ]; then
+            return 1
+        elif [ "$minor" = "5" ] && [ "$patch" -le "6" ]; then
+            return 1
+        fi
+    elif [ "$major" = "16" ]; then
+        if [ "$minor" = "0" ] && [ "$patch" -le "6" ]; then
+            return 1
+        fi
+    fi
+    
+    return 0  # Safe
+}
+
+echo "Searching for Next.js installations..."
+echo ""
+
+# Method 1: Check package.json files
+find / -name "package.json" -type f 2>/dev/null | while read pkg; do
+    next_version=$(grep -o '"next"[[:space:]]*:[[:space:]]*"[^"]*"' "$pkg" 2>/dev/null | grep -o '[0-9][0-9.]*' | head -1)
+    
+    if [ -n "$next_version" ]; then
+        echo "Found: $pkg"
+        echo "  Next.js version: $next_version"
+        
+        if check_version "$next_version"; then
+            echo -e "  Status: ${GREEN}SAFE${NC}"
+            SAFE=$((SAFE + 1))
+        else
+            echo -e "  Status: ${RED}VULNERABLE${NC} - Update to 15.5.7+ or 16.0.7+"
+            VULNERABLE=$((VULNERABLE + 1))
+        fi
+        echo ""
+    fi
+done
+
+# Method 2: Check Docker containers
+echo "Checking Docker containers..."
+docker ps --format '{{.Names}}' 2>/dev/null | while read container; do
+    echo "Checking container: $container"
+    
+    # Try to find Next.js version in container
+    next_version=$(docker exec "$container" sh -c 'cat /*/package.json 2>/dev/null | grep -o "\"next\"[[:space:]]*:[[:space:]]*\"[^\"]*\"" | grep -o "[0-9][0-9.]*" | head -1' 2>/dev/null)
+    
+    if [ -n "$next_version" ]; then
+        echo "  Next.js version: $next_version"
+        
+        if check_version "$next_version"; then
+            echo -e "  Status: ${GREEN}SAFE${NC}"
+        else
+            echo -e "  Status: ${RED}VULNERABLE${NC}"
+        fi
+    else
+        echo -e "  Status: ${YELLOW}No Next.js found${NC}"
+    fi
+    echo ""
+done
+
+echo "=== Summary ==="
+echo -e "${GREEN}Safe installations: $SAFE${NC}"
+echo -e "${RED}Vulnerable installations: $VULNERABLE${NC}"
+echo ""
+
+if [ $VULNERABLE -gt 0 ]; then
+    echo -e "${RED}⚠️  ACTION REQUIRED${NC}"
+    echo "Vulnerable Next.js installations found!"
+    echo ""
+    echo "Patched versions:"
+    echo "  - Next.js 15.0.5, 15.1.9, 15.2.6, 15.3.6, 15.4.8, 15.5.7+"
+    echo "  - Next.js 16.0.7+"
+    echo ""
+    echo "Update command:"
+    echo "  npm install next@latest"
+    echo "  # or"
+    echo "  yarn upgrade next@15.5.7"
+    exit 1
+else
+    echo -e "${GREEN}✓ All Next.js installations are safe${NC}"
+    exit 0
+fi
--- a/npm-security-check.sh
+++ b/npm-security-check.sh
@@ -0,0 +1,267 @@
+#!/usr/bin/env bash
+# npm-security-check.sh
+# Scans for NPM/Node.js malware indicators on this VM.
+
+set -euo pipefail
+
+HOSTNAME=$(hostname)
+DATE=$(date)
+LOGFILE="${1:-npm_security_check_${HOSTNAME}_$(date +%Y%m%d_%H%M%S).log}"
+
+RED='\033[0;31m'
+YELLOW='\033[1;33m'
+GREEN='\033[0;32m'
+BOLD='\033[1m'
+RESET='\033[0m'
+
+ISSUES=0
+WARNINGS=0
+
+log() { echo "$*" | tee -a "$LOGFILE"; }
+header() { log ""; log "=========================================="; log "$*"; log "=========================================="; }
+ok()   { log "$(printf "${GREEN}✓${RESET} %s" "$*")"; }
+warn() { log "$(printf "${YELLOW}⚠${RESET} %s" "$*")"; (( WARNINGS++ )) || true; }
+fail() { log "$(printf "${RED}✗${RESET} %s" "$*")"; (( ISSUES++ )) || true; }
+
+# ── Header ────────────────────────────────────────────────────────────────────
+log "=========================================="
+log "  NPM / Node.js Security Check"
+log "=========================================="
+log "Hostname : $HOSTNAME"
+log "Date     : $DATE"
+log "Log file : $LOGFILE"
+
+# ── 1. Global npm packages ────────────────────────────────────────────────────
+header "1. Global npm packages"
+
+KNOWN_GOOD_GLOBALS="npm corepack"
+if command -v npm &>/dev/null; then
+    GLOBALS=$(npm list -g --depth=0 2>/dev/null | tail -n +2 | sed 's/.*── //')
+    log "$GLOBALS"
+    # Flag anything that looks like a typosquat or known-bad package
+    SUSPICIOUS_PATTERNS="(plain-crypto-js|axios-[0-9]|node-fetch-[0-9]{3}|colors-js|event-stream|flatmap-stream|ua-parser-js|coa@|rc@[0-9]|nodemailer-[0-9]{3})"
+    HITS=$(echo "$GLOBALS" | grep -E "$SUSPICIOUS_PATTERNS" || true)
+    if [[ -n "$HITS" ]]; then
+        fail "Suspicious global package(s) found:"
+        log "$HITS"
+    else
+        ok "No suspicious global packages"
+    fi
+else
+    warn "npm not found in PATH"
+fi
+
+# ── 2. Known malicious packages in lock files ─────────────────────────────────
+header "2. Malicious package names in lock files"
+
+BAD_PKGS=(
+    "plain-crypto-js"
+    "axios-proxy"
+    "node-colors"
+    "colors-js"
+    "event-stream"
+    "flatmap-stream"
+    "ua-parser-js"
+    "getcookies"
+)
+
+LOCKFILES=$(find / -name "package-lock.json" -o -name "yarn.lock" -o -name "pnpm-lock.yaml" \
+    2>/dev/null | grep -v node_modules | grep -v "\.vscode-server" | grep -v "\.cache") || true
+
+if [[ -z "$LOCKFILES" ]]; then
+    warn "No lock files found to scan"
+else
+    COUNT=$(echo "$LOCKFILES" | wc -l)
+    log "Scanning $COUNT lock file(s)..."
+    for pkg in "${BAD_PKGS[@]}"; do
+        MATCHES=$(echo "$LOCKFILES" | xargs grep -l "\"$pkg\"" 2>/dev/null || true)
+        if [[ -n "$MATCHES" ]]; then
+            fail "Found '$pkg' in: $MATCHES"
+        fi
+    done
+    ok "No known-malicious package names found"
+fi
+
+# ── 3. Node processes and their origin ────────────────────────────────────────
+header "3. Running Node/Next.js processes"
+
+NODE_PROCS=$(ps aux | grep -E "[n]ode|[n]ext-server|[n]pm|[n]px|[p]npm" | grep -v grep || true)
+
+if [[ -z "$NODE_PROCS" ]]; then
+    ok "No Node.js processes running"
+else
+    log "$NODE_PROCS"
+    # Check for processes running as root outside of Docker containers
+    ROOT_PROCS=$(echo "$NODE_PROCS" | awk '$1 == "root" {print}' || true)
+    if [[ -n "$ROOT_PROCS" ]]; then
+        # Check if each root process is inside a Docker cgroup (normal)
+        while IFS= read -r proc; do
+            PID=$(echo "$proc" | awk '{print $2}')
+            CGROUP=$(cat /proc/"$PID"/cgroup 2>/dev/null | grep -c "docker" || true)
+            if [[ "$CGROUP" -gt 0 ]]; then
+                ok "PID $PID runs as root but is inside a Docker container (normal)"
+            else
+                warn "PID $PID is a root Node process outside Docker — review manually"
+                log "  Command: $(cat /proc/"$PID"/cmdline 2>/dev/null | tr '\0' ' ' || echo 'unreadable')"
+            fi
+        done <<< "$ROOT_PROCS"
+    else
+        ok "No root-owned Node processes outside Docker"
+    fi
+fi
+
+# ── 4. Outbound network connections from Node processes ───────────────────────
+header "4. Node process network connections"
+
+if command -v lsof &>/dev/null; then
+    NODE_CONNS=$(lsof -i TCP -a -c node -a -s TCP:ESTABLISHED 2>/dev/null || true)
+    if [[ -n "$NODE_CONNS" ]]; then
+        log "$NODE_CONNS"
+        # Flag connections to non-443/80 ports on public IPs
+        UNUSUAL=$(echo "$NODE_CONNS" | awk '!/localhost|127\.0\.0|192\.168|10\.|172\.(1[6-9]|2[0-9]|3[01])\.|:443|:80|:22/ && /ESTABLISHED/' || true)
+        if [[ -n "$UNUSUAL" ]]; then
+            warn "Unusual outbound Node connections (non-standard ports or IPs):"
+            log "$UNUSUAL"
+        else
+            ok "Node connections look normal (443/80 or private IPs)"
+        fi
+    else
+        ok "No established TCP connections from node processes"
+    fi
+else
+    # Fallback to ss
+    ALL_CONNS=$(ss -tnp 2>/dev/null | grep "node\|npm" || true)
+    if [[ -n "$ALL_CONNS" ]]; then
+        log "$ALL_CONNS"
+    else
+        ok "No Node network connections found"
+    fi
+fi
+
+# ── 5. Known C2 indicators ────────────────────────────────────────────────────
+header "5. Known C2 / malware indicators"
+
+# From previous axios supply-chain attack (Apr 2025 npm incident)
+C2_IPS=("142.11.206.73" "185.220.101" "194.165.16")
+C2_DOMAINS=("sfrclak.com" "discordapp.com/api/webhooks" "ngrok.io")
+
+ACTIVE_CONNS=$(ss -tn 2>/dev/null || netstat -tn 2>/dev/null || true)
+
+FOUND_C2=false
+for ip in "${C2_IPS[@]}"; do
+    if echo "$ACTIVE_CONNS" | grep -q "$ip"; then
+        fail "Active connection to known C2 IP: $ip"
+        FOUND_C2=true
+    fi
+done
+
+for domain in "${C2_DOMAINS[@]}"; do
+    if echo "$ACTIVE_CONNS" | grep -q "$domain"; then
+        fail "Active connection to suspicious domain: $domain"
+        FOUND_C2=true
+    fi
+done
+
+if ! $FOUND_C2; then
+    ok "No connections to known C2 infrastructure"
+fi
+
+# ── 6. Suspicious processes (miners, RATs) ────────────────────────────────────
+header "6. Suspicious process names"
+
+SUSPICIOUS_PROCS="(xmrig|minerd|cpuminer|kdevtmpfsi|kinsing|/tmp/[a-z0-9]{8,}|/dev/shm/)"
+# Match processes whose executable path (field 11) starts with ../ — not args containing ../
+HITS=$(ps aux | grep -E "$SUSPICIOUS_PROCS" | grep -v grep || true)
+DOTDOT=$(ps aux | grep -v grep | awk '$11 ~ /^\.\.\// {print}' || true)
+[[ -n "$DOTDOT" ]] && HITS="$HITS
+$DOTDOT"
+if [[ -n "$HITS" ]]; then
+    fail "Suspicious processes detected:"
+    log "$HITS"
+else
+    ok "No suspicious process names"
+fi
+
+# ── 7. Suspicious files in temp directories ───────────────────────────────────
+header "7. Suspicious files in /tmp and /dev/shm"
+
+for dir in /tmp /dev/shm /var/tmp; do
+    EXEC_FILES=$(find "$dir" -type f -executable 2>/dev/null | head -20 || true)
+    JS_FILES=$(find "$dir" -name "*.js" -o -name "*.mjs" 2>/dev/null | head -10 || true)
+    if [[ -n "$EXEC_FILES" ]]; then
+        warn "Executable files in $dir:"
+        log "$EXEC_FILES"
+    fi
+    if [[ -n "$JS_FILES" ]]; then
+        warn "JS files in $dir:"
+        log "$JS_FILES"
+    fi
+done
+ok "Temp directory scan complete"
+
+# ── 8. npm configuration ──────────────────────────────────────────────────────
+header "8. npm configuration"
+
+if [[ -f "$HOME/.npmrc" ]]; then
+    log "$(cat "$HOME/.npmrc")"
+    # Check for non-official registry
+    ALT_REGISTRY=$(grep -v "^#" "$HOME/.npmrc" | grep "registry" | grep -v "registry.npmjs.org" || true)
+    if [[ -n "$ALT_REGISTRY" ]]; then
+        warn "Non-official npm registry configured: $ALT_REGISTRY"
+    else
+        ok ".npmrc uses official registry"
+    fi
+else
+    warn "No .npmrc found (registry defaults to npmjs.org — acceptable)"
+fi
+
+# ── 9. Docker containers quick review ────────────────────────────────────────
+header "9. Docker containers"
+
+if command -v docker &>/dev/null && docker ps &>/dev/null 2>&1; then
+    docker ps --format "table {{.Names}}\t{{.Image}}\t{{.Status}}" 2>/dev/null | tee -a "$LOGFILE"
+    # Flag containers with no named image (just an image ID)
+    UNNAMED=$(docker ps --format "{{.Names}} {{.Image}}" 2>/dev/null | awk '$2 ~ /^[0-9a-f]{12}$/' || true)
+    if [[ -n "$UNNAMED" ]]; then
+        warn "Container(s) using unnamed image IDs (verify these are known):"
+        log "$UNNAMED"
+    else
+        ok "All containers use named images"
+    fi
+else
+    warn "Docker not available or not accessible"
+fi
+
+# ── 10. Bash history spot-check ───────────────────────────────────────────────
+header "10. Bash history — suspicious patterns"
+
+HIST_FILE="${HISTFILE:-$HOME/.bash_history}"
+if [[ -f "$HIST_FILE" ]]; then
+    # Look for obfuscated execution patterns (not internal curl to known Tailscale IPs)
+    SUSPICIOUS_HIST=$(grep -E "(eval\s*\$|base64\s*-d|python.*exec|perl.*eval|/dev/tcp/|bash.*<\(curl.*[^1][^0][^0]\.)" \
+        "$HIST_FILE" 2>/dev/null | grep -vE "100\.[0-9]+\.[0-9]+\.[0-9]+" | tail -20 || true)
+    if [[ -n "$SUSPICIOUS_HIST" ]]; then
+        warn "Potentially suspicious history entries:"
+        log "$SUSPICIOUS_HIST"
+    else
+        ok "No obviously suspicious history entries"
+    fi
+else
+    warn "Bash history file not found at $HIST_FILE"
+fi
+
+# ── Summary ────────────────────────────────────────────────────────────────────
+header "SUMMARY"
+log "Scan completed at: $(date)"
+log "Results saved to : $LOGFILE"
+log ""
+if [[ $ISSUES -gt 0 ]]; then
+    log "$(printf "${RED}✗ %d issue(s) found — review output above${RESET}" "$ISSUES")"
+    exit 1
+elif [[ $WARNINGS -gt 0 ]]; then
+    log "$(printf "${YELLOW}⚠ Clean but %d warning(s) — review output above${RESET}" "$WARNINGS")"
+    exit 0
+else
+    log "$(printf "${GREEN}✓ All checks passed — no indicators of compromise${RESET}")"
+    exit 0
+fi