diff --git a/lib/attack-patterns.sh b/lib/attack-patterns.sh index c755664..04a326c 100644 --- a/lib/attack-patterns.sh +++ b/lib/attack-patterns.sh @@ -290,6 +290,114 @@ detect_bot_fingerprint() { return 1 } +# Credential Stuffing / Password Spraying Detection +detect_credential_stuffing() { + local url="$1" + local method="${2:-GET}" + local url_lower=$(echo "$url" | tr '[:upper:]' '[:lower:]') + + # Must be POST to login endpoints + if [ "$method" != "POST" ]; then + return 1 + fi + + # Common credential stuffing targets + if [[ "$url_lower" =~ (wp-login\.php|xmlrpc\.php) ]] || + [[ "$url_lower" =~ (/login|/signin|/auth|/authenticate|/session) ]] || + [[ "$url_lower" =~ (/api/login|/api/auth|/api/token|/oauth/token) ]] || + [[ "$url_lower" =~ (/user/login|/account/login|/customer/login) ]]; then + return 0 + fi + + return 1 +} + +# API Abuse Detection +detect_api_abuse() { + local url="$1" + local method="${2:-GET}" + local url_lower=$(echo "$url" | tr '[:upper:]' '[:lower:]') + + # API endpoint patterns + if [[ "$url_lower" =~ (/api/|/v[0-9]+/|/rest/|/graphql|/webhook) ]] || + [[ "$url_lower" =~ \.json(\?|$)|\.xml(\?|$) ]]; then + + # Suspicious API patterns + if [[ "$url_lower" =~ (/api/.*admin|/api/.*debug|/api/.*test|/api/.*internal) ]] || + [[ "$url_lower" =~ (/api/users/all|/api/.*dump|/api/.*export|/api/backup) ]] || + [[ "$url_lower" =~ (/api/.*delete|/api/.*drop|/api/.*truncate) ]]; then + return 0 + fi + + # Mass data extraction attempts + if [[ "$url_lower" =~ (limit=[0-9]{4,}|limit=999|per_page=[0-9]{3,}) ]] || + [[ "$url_lower" =~ (offset=[0-9]{5,}|page=[0-9]{3,}) ]]; then + return 0 + fi + fi + + return 1 +} + +# Content Management System (CMS) Vulnerability Probing +detect_cms_exploit() { + local url="$1" + local url_lower=$(echo "$url" | tr '[:upper:]' '[:lower:]') + + # WordPress vulnerabilities + if [[ "$url_lower" =~ (wp-content/plugins/.*\.\.|wp-content/themes/.*\.\.) ]] || + [[ "$url_lower" =~ (wp-json/wp/v2/users|wp-json/.*users) ]] || + [[ "$url_lower" =~ (wp-config\.php|wp-admin/install\.php|wp-admin/setup-config\.php) ]]; then + return 0 + fi + + # Drupal vulnerabilities + if [[ "$url_lower" =~ (/user/register|/user/password|/?q=node/add) ]] || + [[ "$url_lower" =~ (drupalgeddon|sites/default/files/\.\./) ]]; then + return 0 + fi + + # Joomla vulnerabilities + if [[ "$url_lower" =~ (index\.php\?option=com_|/configuration\.php) ]] || + [[ "$url_lower" =~ (com_foxcontact|com_fabrik|com_user) ]]; then + return 0 + fi + + # Generic CMS probing + if [[ "$url_lower" =~ (readme\.html|license\.txt|changelog\.txt) ]] || + [[ "$url_lower" =~ (/install/|/setup/|/upgrade/|/migration/) ]]; then + return 0 + fi + + return 1 +} + +# E-commerce Platform Exploitation +detect_ecommerce_exploit() { + local url="$1" + local url_lower=$(echo "$url" | tr '[:upper:]' '[:lower:]') + + # Shopping cart manipulation + if [[ "$url_lower" =~ (price=0|price=-|quantity=-|discount=100) ]] || + [[ "$url_lower" =~ (total=0|amount=0\.0|cost=0) ]]; then + return 0 + fi + + # Payment bypass attempts + if [[ "$url_lower" =~ (payment.*bypass|order.*complete|checkout.*skip) ]] || + [[ "$url_lower" =~ (invoice.*paid|transaction.*success) ]]; then + return 0 + fi + + # Common e-commerce platforms + if [[ "$url_lower" =~ (magento.*admin|shopify.*admin|woocommerce.*admin) ]] || + [[ "$url_lower" =~ (/admin/sales/|/admin/order/|/admin/customer/) ]]; then + return 0 + fi + + return 1 +} + # Detect all attack vectors for a URL # Returns: attack_type1,attack_type2,... or empty if none # Parameters: url method user_agent ip @@ -300,7 +408,7 @@ detect_all_attacks() { local ip="${4:-}" local attacks=() - # URL-based detection + # URL-based detection (OWASP Top 10 + Modern Vectors) detect_sql_injection "$url" && attacks+=("SQL_INJECTION") detect_xss "$url" && attacks+=("XSS") detect_path_traversal "$url" && attacks+=("PATH_TRAVERSAL") @@ -314,6 +422,12 @@ detect_all_attacks() { detect_template_injection "$url" && attacks+=("TEMPLATE_INJECTION") detect_encoding_bypass "$url" && attacks+=("ENCODING_BYPASS") + # Application-specific detection + detect_credential_stuffing "$url" "$method" && attacks+=("CREDENTIAL_STUFFING") + detect_api_abuse "$url" "$method" && attacks+=("API_ABUSE") + detect_cms_exploit "$url" && attacks+=("CMS_EXPLOIT") + detect_ecommerce_exploit "$url" && attacks+=("ECOMMERCE_EXPLOIT") + # User-Agent based detection if [ -n "$user_agent" ]; then detect_suspicious_ua "$user_agent" && attacks+=("SUSPICIOUS_UA") @@ -356,6 +470,10 @@ calculate_attack_score() { [[ "$attacks" =~ (^|,)SUSPICIOUS_UA(,|$) ]] && score=$((score + 10)) [[ "$attacks" =~ (^|,)BOT_FINGERPRINT(,|$) ]] && score=$((score + 8)) [[ "$attacks" =~ (^|,)ANONYMIZER(,|$) ]] && score=$((score + 15)) + [[ "$attacks" =~ (^|,)CREDENTIAL_STUFFING(,|$) ]] && score=$((score + 18)) + [[ "$attacks" =~ (^|,)API_ABUSE(,|$) ]] && score=$((score + 12)) + [[ "$attacks" =~ (^|,)CMS_EXPLOIT(,|$) ]] && score=$((score + 16)) + [[ "$attacks" =~ (^|,)ECOMMERCE_EXPLOIT(,|$) ]] && score=$((score + 20)) echo "$score" } @@ -381,6 +499,10 @@ get_attack_icon() { SUSPICIOUS_UA) echo "🎭" ;; BOT_FINGERPRINT) echo "🤖" ;; ANONYMIZER) echo "🕶️ " ;; + CREDENTIAL_STUFFING) echo "🔑" ;; + API_ABUSE) echo "⚡" ;; + CMS_EXPLOIT) echo "🎯" ;; + ECOMMERCE_EXPLOIT) echo "💳" ;; BOT) echo "🤖" ;; SCANNER) echo "🔎" ;; *) echo "❓" ;; @@ -392,9 +514,9 @@ get_attack_color() { local attack_type="$1" case "$attack_type" in - SQL_INJECTION|RCE|TEMPLATE_INJECTION) echo '\033[1;41;97m' ;; # White on Red (CRITICAL) - XSS|PATH_TRAVERSAL|BRUTEFORCE|XXE|SSRF|NOSQL_INJECTION|ANONYMIZER) echo '\033[1;31m' ;; # Bold Red (HIGH) - INFO_DISCLOSURE|ADMIN_PROBE|ENCODING_BYPASS|SUSPICIOUS_UA|BOT_FINGERPRINT) echo '\033[1;33m' ;; # Bold Yellow (MEDIUM) + SQL_INJECTION|RCE|TEMPLATE_INJECTION|ECOMMERCE_EXPLOIT) echo '\033[1;41;97m' ;; # White on Red (CRITICAL) + XSS|PATH_TRAVERSAL|BRUTEFORCE|XXE|SSRF|NOSQL_INJECTION|ANONYMIZER|CREDENTIAL_STUFFING|CMS_EXPLOIT) echo '\033[1;31m' ;; # Bold Red (HIGH) + INFO_DISCLOSURE|ADMIN_PROBE|ENCODING_BYPASS|SUSPICIOUS_UA|BOT_FINGERPRINT|API_ABUSE) echo '\033[1;33m' ;; # Bold Yellow (MEDIUM) *) echo '\033[0;36m' ;; # Cyan (LOW) esac } @@ -414,6 +536,10 @@ export -f detect_encoding_bypass export -f detect_suspicious_ua export -f detect_anonymizer export -f detect_bot_fingerprint +export -f detect_credential_stuffing +export -f detect_api_abuse +export -f detect_cms_exploit +export -f detect_ecommerce_exploit export -f detect_all_attacks export -f calculate_attack_score export -f get_attack_icon