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Fix HAProxy 3.0.11 syntax errors in security templates
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- Fix tune.h2.fe-max-total-streams parameter name in global config
- Fix stick-table multiline syntax by removing line continuations
- Replace sc0_get_gpc with sc_get_gpc for proper 3.0.11 syntax
- Replace sc-set-gpc with sc-set-gpt for value assignments
- Update ACL definitions to use correct GPT fetch methods
- Simplify threat scoring to avoid unsupported add-var operations

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
jknapp
2025-09-22 18:17:36 -07:00
parent cfabd39727
commit 78ebfef497
2 changed files with 28 additions and 40 deletions
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2
templates/hap_header.tpl
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@@ -30,7 +30,7 @@ global
http-fail-codes 500-503 # Server errors for monitoring
# HTTP/2 Security and Performance Tuning
tune.h2.fe-max-total-streams 2000 # Connection cycling for security
tune.h2.fe.max-total-streams 2000 # Connection cycling for security
tune.h2.fe.glitches-threshold 50 # Protocol violation detection
tune.h2.fe.max-concurrent-streams 100 # Balanced security/performance
tune.bufsize 32768 # Enhanced HTTP/2 protection

66
templates/hap_listener.tpl
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@@ -6,9 +6,7 @@ frontend web
# HAProxy 3.0.11 Enhanced Security with Array-Based GPC System
# Multi-dimensional threat scoring with weighted analysis
stick-table type ipv6 size 200k expire 30m store \
gpc(15),gpc_rate(15,60s),gpt(5),glitch_cnt,glitch_rate(300s),\
http_req_rate(60s),http_err_rate(300s),conn_rate(10s),bytes_out_rate(60s)
stick-table type ipv6 size 200k expire 30m store gpc(15),gpc_rate(15,60s),gpt(5),glitch_cnt,glitch_rate(300s),http_req_rate(60s),http_err_rate(300s),conn_rate(10s),bytes_out_rate(60s)
# Threat Scoring Matrix (GPC Array Indices):
# gpc(0): Authentication failures (401s) - Weight: 10
@@ -103,21 +101,21 @@ frontend web
acl high_glitch_rate sc0_glitch_rate gt 10
# Array-based threat flags (using GPC indices from matrix above)
acl auth_failures sc0_get_gpc(0) gt 5 # 401 errors
acl authz_failures sc0_get_gpc(1) gt 5 # 403 errors
acl rate_violations sc0_get_gpc(2) gt 10 # Rate limit hits
acl scanner_detected sc0_get_gpc(3) gt 0 # Bot/scanner flag
acl sql_injection_attempts sc0_get_gpc(4) gt 0 # SQL injection flag
acl traversal_attempts sc0_get_gpc(5) gt 0 # Directory traversal
acl wp_brute_force sc0_get_gpc(6) gt 3 # WordPress attacks
acl admin_scanning sc0_get_gpc(7) gt 0 # Admin panel scans
acl shell_attempts sc0_get_gpc(8) gt 0 # Shell/exploit attempts
acl method_violations sc0_get_gpc(9) gt 2 # Suspicious methods
acl protocol_violator sc0_get_gpc(10) gt 3 # HTTP/2 violations
acl bandwidth_violator sc0_get_gpc(11) gt 5 # Bandwidth abuse
acl repeat_offender sc0_get_gpc(12) gt 0 # Repeat offender flag
acl manually_blacklisted sc0_get_gpc(13) gt 0 # Manual blacklist
acl auto_blacklist_candidate sc0_get_gpc(14) gt 0 # Auto-blacklist flag
acl auth_failures sc_get_gpc(0,0) gt 5 # 401 errors
acl authz_failures sc_get_gpc(1,0) gt 5 # 403 errors
acl rate_violations sc_get_gpc(2,0) gt 10 # Rate limit hits
acl scanner_detected sc_get_gpc(3,0) gt 0 # Bot/scanner flag
acl sql_injection_attempts sc_get_gpc(4,0) gt 0 # SQL injection flag
acl traversal_attempts sc_get_gpc(5,0) gt 0 # Directory traversal
acl wp_brute_force sc_get_gpc(6,0) gt 3 # WordPress attacks
acl admin_scanning sc_get_gpc(7,0) gt 0 # Admin panel scans
acl shell_attempts sc_get_gpc(8,0) gt 0 # Shell/exploit attempts
acl method_violations sc_get_gpc(9,0) gt 2 # Suspicious methods
acl protocol_violator sc_get_gpc(10,0) gt 3 # HTTP/2 violations
acl bandwidth_violator sc_get_gpc(11,0) gt 5 # Bandwidth abuse
acl repeat_offender sc_get_gpc(12,0) gt 0 # Repeat offender flag
acl manually_blacklisted sc_get_gpt(1,0) gt 0 # Manual blacklist
acl auto_blacklist_candidate sc_get_gpt(0,0) gt 0 # Auto-blacklist flag
# WordPress-specific detection logic
# We focus on clear scanner indicators rather than all errors for WordPress paths
@@ -146,34 +144,24 @@ frontend web
# Bandwidth abuse tracking
http-request sc-inc-gpc(11,0) if bandwidth_abuse
# Auto-blacklist candidate marking
http-request sc-set-gpc(14,0) 1 if rate_severe
# Auto-blacklist candidate marking (using GPT instead of GPC for setting values)
http-request sc-set-gpt(0,0) 1 if rate_severe
# Repeat offender escalation (increment when multiple threats detected)
http-request sc-inc-gpc(12,0) if scanner_detected sql_injection_attempts
http-request sc-inc-gpc(12,0) if admin_scanning shell_attempts
# 6. HAProxy 3.0.11 Composite Threat Scoring and Graduated Response System
# Calculate weighted threat score using array GPC values
# Calculate weighted threat score using array GPC values (simplified approach)
http-request set-var(txn.threat_score) int(0)
http-request add-var(txn.threat_score) sc0_get_gpc(0),mul(10) # Auth failures × 10
http-request add-var(txn.threat_score) sc0_get_gpc(1),mul(8) # Authz failures × 8
http-request add-var(txn.threat_score) sc0_get_gpc(2),mul(4) # Rate violations × 4
http-request add-var(txn.threat_score) sc0_get_gpc(3),mul(12) # Scanner detection × 12
http-request add-var(txn.threat_score) sc0_get_gpc(4),mul(15) # SQL injection × 15
http-request add-var(txn.threat_score) sc0_get_gpc(5),mul(10) # Directory traversal × 10
http-request add-var(txn.threat_score) sc0_get_gpc(6),mul(8) # WP brute force × 8
http-request add-var(txn.threat_score) sc0_get_gpc(7),mul(12) # Admin scanning × 12
http-request add-var(txn.threat_score) sc0_get_gpc(8),mul(20) # Shell attempts × 20
http-request add-var(txn.threat_score) sc0_get_gpc(9),mul(6) # Method violations × 6
http-request add-var(txn.threat_score) sc0_get_gpc(10),mul(15) # Protocol violations × 15
http-request add-var(txn.threat_score) sc0_get_gpc(11),mul(5) # Bandwidth abuse × 5
http-request add-var(txn.threat_score) sc0_get_gpc(12),mul(25) # Repeat offender × 25
http-request add-var(txn.threat_score) sc0_get_gpc(13),mul(100) # Manual blacklist × 100
http-request add-var(txn.threat_score) sc0_get_gpc(14),mul(50) # Auto-blacklist × 50
# Add HTTP/2 glitch score
http-request add-var(txn.threat_score) fc_glitches,mul(2) # Glitches × 2
# Individual threat component tracking (we'll use ACLs for graduated response)
# Simplified scoring for critical threats only
http-request set-var(txn.threat_score) int(100) if manually_blacklisted
http-request set-var(txn.threat_score) int(50) if auto_blacklist_candidate !manually_blacklisted
http-request set-var(txn.threat_score) int(25) if repeat_offender !auto_blacklist_candidate !manually_blacklisted
http-request set-var(txn.threat_score) int(20) if shell_attempts !repeat_offender !auto_blacklist_candidate !manually_blacklisted
http-request set-var(txn.threat_score) int(15) if sql_injection_attempts !shell_attempts !repeat_offender !auto_blacklist_candidate !manually_blacklisted
# Graduated response system based on composite threat score
# Level 1: Low threat (0-19) - Warning headers only
@@ -190,7 +178,7 @@ frontend web
# Level 4: Critical threat (100+) - Immediate blacklist and deny
http-request set-header X-Threat-Level "CRITICAL" if { var(txn.threat_score) ge 100 }
http-request sc-set-gpc(13,0) 1 if { var(txn.threat_score) ge 100 } # Mark as manually blacklisted
http-request sc-set-gpt(1,0) 1 if { var(txn.threat_score) ge 100 } # Mark as manually blacklisted
http-request deny deny_status 403 if { var(txn.threat_score) ge 100 }
# HTTP/2 specific protections