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- Add full tarpit escalation logic with gpc1 tracking (levels 0-3) - Implement progressive delays: 2-5s → 8-15s → 20-45s → 60s - Increase initial threshold from 5 to 10 errors (more tolerant) - Reduce tracking duration from 2h to 1h (faster cleanup) - Add show-tarpit-ips.sh script for monitoring tarpitted IPs via CLI - Script shows IP, scan count, escalation level, and tarpit status 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
117 lines
4.3 KiB
Bash
Executable File
117 lines
4.3 KiB
Bash
Executable File
#!/bin/bash
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# Script to display IPs that have been tarpitted by HAProxy 3.0
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# Uses HAProxy stats socket to query stick-table data
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#
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# Usage in Docker container:
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# docker exec -it haproxy-manager /haproxy/scripts/show-tarpit-ips.sh
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SOCKET="/tmp/haproxy-cli"
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# Check if socket exists
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if [ ! -S "$SOCKET" ]; then
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echo "Error: HAProxy socket not found at $SOCKET"
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echo "Make sure HAProxy is running with stats socket enabled"
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exit 1
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fi
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echo "==================================================================="
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echo " HAProxy Tarpitted IPs Report "
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echo "==================================================================="
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echo
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echo "Showing IPs tracked in the stick-table with scan detection counters:"
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echo "(gpc0 = total scan attempts, gpc1 = escalation level)"
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echo
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# In HAProxy 3.0, we need to use the proper process prefix
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# The web frontend table is in the worker process, not master
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# First check which process has the table
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# Note: grep for actual worker line, not the header
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PROCESS_ID=$(echo "show proc" | socat stdio "$SOCKET" 2>/dev/null | grep -E '^[0-9]+.*worker' | awk '{print $1}' | head -1)
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if [ -z "$PROCESS_ID" ]; then
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echo "Error: Could not find HAProxy worker process"
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echo "Try: echo 'show proc' | socat stdio $SOCKET"
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exit 1
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fi
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# Show stick-table entries from the web frontend using the worker process
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# Use printf to avoid bash history expansion issues with !
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printf "@!%s show table web\n" "${PROCESS_ID}" | socat stdio "$SOCKET" 2>/dev/null | {
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# Skip the header line
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read header
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# Check if we got an error or empty response
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if echo "$header" | grep -q "No such table"; then
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echo "Error: Table 'web' not found. HAProxy may need to be reloaded."
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exit 1
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fi
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has_data=false
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echo "IP Address | Scan Count | Level | HTTP Err Rate | Status"
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echo "---------------------|------------|-------|---------------|------------------"
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# Process each line
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while IFS= read -r line; do
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# Skip empty lines and comments
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if [ -z "$line" ] || echo "$line" | grep -q "^#"; then
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continue
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fi
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# HAProxy 3.0 format: 0x... key=<ip> use=... exp=... gpc0=... gpc1=... http_err_rate(10s)=...
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if echo "$line" | grep -q "key="; then
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has_data=true
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# Extract IP and counters
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ip=$(echo "$line" | grep -o 'key=[^ ]*' | cut -d'=' -f2)
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gpc0=$(echo "$line" | grep -o 'gpc0=[0-9]*' | cut -d'=' -f2)
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gpc1=$(echo "$line" | grep -o 'gpc1=[0-9]*' | cut -d'=' -f2)
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err_rate=$(echo "$line" | grep -o 'http_err_rate([^)]*=[0-9]*' | grep -o '[0-9]*$')
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# Set defaults if values are empty
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gpc0=${gpc0:-0}
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gpc1=${gpc1:-0}
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err_rate=${err_rate:-0}
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# Determine status based on scan count
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status=""
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if [ "$gpc0" -ge 50 ]; then
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status="BLOCKED (critical)"
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elif [ "$gpc0" -ge 35 ]; then
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status="TARPITTED (high)"
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elif [ "$gpc0" -ge 20 ]; then
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status="TARPITTED (medium)"
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elif [ "$gpc0" -ge 10 ]; then
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status="MONITORED (low)"
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else
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status="Normal"
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fi
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# Format output
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printf "%-20s | %10s | %5s | %13s | %s\n" "$ip" "$gpc0" "$gpc1" "$err_rate/10s" "$status"
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fi
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done
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if [ "$has_data" = false ]; then
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echo "(No IPs currently tracked - table is empty)"
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fi
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}
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echo
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echo "==================================================================="
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echo "Legend:"
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echo " - Scan Count 10-19: Potential scanner (monitored/low tarpit)"
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echo " - Scan Count 20-34: Likely scanner (tarpitted with medium delay)"
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echo " - Scan Count 35-49: Confirmed scanner (tarpitted with high delay)"
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echo " - Scan Count 50+: Aggressive scanner (blocked with 429 status)"
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echo "==================================================================="
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echo "Note: IPs are tracked for 1 hour since last activity"
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echo
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echo "To clear a specific IP from the table:"
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echo " printf '@!${PROCESS_ID} del table web key <IP>\\n' | socat stdio $SOCKET"
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echo
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echo "To clear all entries:"
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echo " printf '@!${PROCESS_ID} clear table web\\n' | socat stdio $SOCKET"
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echo
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echo "Debug: Worker PID is ${PROCESS_ID}"
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echo |