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Update Naxsi rules set
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@joglomedia
joglomedia committed Jan 22, 2025
1 parent 14a7a38 commit 5e5b410
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20 changes: 20 additions & 0 deletions etc/nginx/includes/naxsi.rules
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# Sample rules file for default vhost.

#LearningMode;
SecRulesEnabled;
#SecRulesDisabled;
LibInjectionSql;
LibInjectionXss;

DeniedUrl "/RequestDenied";

## Check rules
CheckRule "$SQL >= 8" BLOCK; # SQL injection action (unrelated to libinjection)
CheckRule "$XSS >= 8" BLOCK; # XSS action (unrelated to libinjection)
CheckRule "$RFI >= 8" BLOCK; # Remote File Inclusion action
CheckRule "$UWA >= 8" BLOCK; # Unwanted Access action
CheckRule "$EVADE >= 8" BLOCK; # Evade action (some tools may try to avoid detection).
CheckRule "$UPLOAD >= 5" BLOCK; # Malicious upload action
CheckRule "$TRAVERSAL >= 5" BLOCK; # Traversal access action
CheckRule "$LIBINJECTION_XSS >= 8" BLOCK; # libinjection XSS action
CheckRule "$LIBINJECTION_SQL >= 8" BLOCK; # libinjection SQLi action
101 changes: 101 additions & 0 deletions etc/nginx/includes/naxsi_core.rules
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##################################
## INTERNAL RULES IDS:1-999 ##
##################################
#@MainRule "msg:weird request, unable to parse" id:1;
#@MainRule "msg:request too big, stored on disk and not parsed" id:2;
#@MainRule "msg:invalid hex encoding, null bytes" id:10;
#@MainRule "msg:unknown content-type" id:11;
#@MainRule "msg:invalid formatted url" id:12;
#@MainRule "msg:invalid POST format" id:13;
#@MainRule "msg:invalid POST boundary" id:14;
#@MainRule "msg:invalid JSON" id:15;
#@MainRule "msg:empty POST" id:16;
#@MainRule "msg:libinjection_sql" id:17;
#@MainRule "msg:libinjection_xss" id:18;
#@MainRule "msg:no generic rules" id:19;
#@MainRule "msg:bad utf8" id:20;
#@MainRule "msg:illegal host header" id:21;

##################################
## SQL Injections IDs:1000-1099 ##
##################################
MainRule "rx:select|union|update|delete|insert|table|from|ascii|hex|unhex|drop|load_file|substr|group_concat|dumpfile|bigint" "msg:sql keywords" "mz:BODY|URL|ARGS|$HEADERS_VAR:Cookie" "s:$SQL:4" id:1000;
MainRule "str:\"" "msg:double quote" "mz:BODY|URL|ARGS|$HEADERS_VAR:Cookie" "s:$SQL:8,$XSS:8" id:1001;
MainRule "str:0x" "msg:0x, possible hex encoding" "mz:BODY|URL|ARGS|$HEADERS_VAR:Cookie" "s:$SQL:2" id:1002;
## Hardcore rules
MainRule "str:/*" "msg:mysql comment (/*)" "mz:BODY|URL|ARGS|$HEADERS_VAR:Cookie" "s:$SQL:8" id:1003;
MainRule "str:*/" "msg:mysql comment (*/)" "mz:BODY|URL|ARGS|$HEADERS_VAR:Cookie" "s:$SQL:8" id:1004;
MainRule "str:|" "msg:mysql keyword (|)" "mz:BODY|URL|ARGS|$HEADERS_VAR:Cookie" "s:$SQL:8" id:1005;
MainRule "str:&&" "msg:mysql keyword (&&)" "mz:BODY|URL|ARGS|$HEADERS_VAR:Cookie" "s:$SQL:8" id:1006;
## end of hardcore rules
MainRule "str:--" "msg:mysql comment (--)" "mz:BODY|URL|ARGS|$HEADERS_VAR:Cookie" "s:$SQL:4" id:1007;
MainRule "str:;" "msg:semicolon" "mz:BODY|URL|ARGS" "s:$SQL:4,$XSS:8" id:1008;
MainRule "str:=" "msg:equal sign in var, probable sql/xss" "mz:ARGS|BODY" "s:$SQL:2" id:1009;
MainRule "str:(" "msg:open parenthesis, probable sql/xss" "mz:ARGS|URL|BODY|$HEADERS_VAR:Cookie" "s:$SQL:4,$XSS:8" id:1010;
MainRule "str:)" "msg:close parenthesis, probable sql/xss" "mz:ARGS|URL|BODY|$HEADERS_VAR:Cookie" "s:$SQL:4,$XSS:8" id:1011;
MainRule "str:'" "msg:simple quote" "mz:ARGS|BODY|URL|$HEADERS_VAR:Cookie" "s:$SQL:4,$XSS:8" id:1013;
MainRule "str:," "msg:comma" "mz:BODY|URL|ARGS|$HEADERS_VAR:Cookie" "s:$SQL:4" id:1015;
MainRule "str:#" "msg:mysql comment (#)" "mz:BODY|URL|ARGS|$HEADERS_VAR:Cookie" "s:$SQL:4" id:1016;
MainRule "str:@@" "msg:double arobase (@@)" "mz:BODY|URL|ARGS|$HEADERS_VAR:Cookie" "s:$SQL:4" id:1017;
MainRule "rx:::json|to_json|jsonb?_build|jsonb?_object|jsonb?_each|jsonb?_extract|jsonb?_typeof|jsonb?_array|jsonb_set|json_query|json_keys" "msg:json functions and operators" "mz:BODY|URL|ARGS|$HEADERS_VAR:Cookie" "s:$SQL:8" id:1018;

###############################
## OBVIOUS RFI IDs:1100-1199 ##
###############################
MainRule "str:http://" "msg:http:// scheme" "mz:ARGS|BODY|$HEADERS_VAR:Cookie" "s:$RFI:8" id:1100;
MainRule "str:https://" "msg:https:// scheme" "mz:ARGS|BODY|$HEADERS_VAR:Cookie" "s:$RFI:8" id:1101;
MainRule "str:ftp://" "msg:ftp:// scheme" "mz:ARGS|BODY|$HEADERS_VAR:Cookie" "s:$RFI:8" id:1102;
MainRule "str:php://" "msg:php:// scheme" "mz:ARGS|BODY|$HEADERS_VAR:Cookie" "s:$RFI:8" id:1103;
MainRule "str:sftp://" "msg:sftp:// scheme" "mz:ARGS|BODY|$HEADERS_VAR:Cookie" "s:$RFI:8" id:1104;
MainRule "str:zlib://" "msg:zlib:// scheme" "mz:ARGS|BODY|$HEADERS_VAR:Cookie" "s:$RFI:8" id:1105;
MainRule "str:data://" "msg:data:// scheme" "mz:ARGS|BODY|$HEADERS_VAR:Cookie" "s:$RFI:8" id:1106;
MainRule "str:glob://" "msg:glob:// scheme" "mz:ARGS|BODY|$HEADERS_VAR:Cookie" "s:$RFI:8" id:1107;
MainRule "str:phar://" "msg:phar:// scheme" "mz:ARGS|BODY|$HEADERS_VAR:Cookie" "s:$RFI:8" id:1108;
MainRule "str:file://" "msg:file:// scheme" "mz:ARGS|BODY|$HEADERS_VAR:Cookie" "s:$RFI:8" id:1109;
MainRule "str:gopher://" "msg:gopher:// scheme" "mz:ARGS|BODY|$HEADERS_VAR:Cookie" "s:$RFI:8" id:1110;
MainRule "str:zip://" "msg:zip:// scheme" "mz:ARGS|BODY|$HEADERS_VAR:Cookie" "s:$RFI:8" id:1111;
MainRule "str:expect://" "msg:expect:// scheme" "mz:ARGS|BODY|$HEADERS_VAR:Cookie" "s:$RFI:8" id:1112;
MainRule "str:input://" "msg:input:// scheme" "mz:ARGS|BODY|$HEADERS_VAR:Cookie" "s:$RFI:8" id:1113;

#######################################
## Directory traversal IDs:1200-1299 ##
#######################################
MainRule "str:.." "msg:double dot" "mz:ARGS|URL|BODY|$HEADERS_VAR:Cookie" "s:$TRAVERSAL:4" id:1200;
MainRule "str:/etc/passwd" "msg:obvious probe" "mz:ARGS|URL|BODY|$HEADERS_VAR:Cookie" "s:$TRAVERSAL:4" id:1202;
MainRule "str:c:\\" "msg:obvious windows path" "mz:ARGS|URL|BODY|$HEADERS_VAR:Cookie" "s:$TRAVERSAL:4" id:1203;
MainRule "str:cmd.exe" "msg:obvious probe" "mz:ARGS|URL|BODY|$HEADERS_VAR:Cookie" "s:$TRAVERSAL:4" id:1204;
MainRule "str:\\" "msg:backslash" "mz:ARGS|URL|BODY|$HEADERS_VAR:Cookie" "s:$TRAVERSAL:4" id:1205;
#MainRule "str:/" "msg:slash in args" "mz:ARGS|BODY|$HEADERS_VAR:Cookie" "s:$TRAVERSAL:2" id:1206;
MainRule "str:/..;/" "msg:dir traversal bypass" "mz:ARGS|URL|BODY|$HEADERS_VAR:Cookie" "s:$TRAVERSAL:2" id:1207;
MainRule "str:/.;/" "msg:dir traversal bypass" "mz:ARGS|URL|BODY|$HEADERS_VAR:Cookie" "s:$TRAVERSAL:4" id:1208;
MainRule "str:/.%2e/" "msg:dir traversal bypass" "mz:ARGS|URL|BODY|$HEADERS_VAR:Cookie" "s:$TRAVERSAL:4" id:1209;
MainRule "str:/%2e./" "msg:dir traversal bypass" "mz:ARGS|URL|BODY|$HEADERS_VAR:Cookie" "s:$TRAVERSAL:4" id:1210;

########################################
## Cross Site Scripting IDs:1300-1399 ##
########################################
MainRule "str:<" "msg:html open tag" "mz:ARGS|URL|BODY|$HEADERS_VAR:Cookie" "s:$XSS:8" id:1302;
MainRule "str:>" "msg:html close tag" "mz:ARGS|URL|BODY|$HEADERS_VAR:Cookie" "s:$XSS:8" id:1303;
MainRule "str:[" "msg:open square backet ([), possible js" "mz:BODY|URL|ARGS|$HEADERS_VAR:Cookie" "s:$XSS:4" id:1310;
MainRule "str:]" "msg:close square bracket (]), possible js" "mz:BODY|URL|ARGS|$HEADERS_VAR:Cookie" "s:$XSS:4" id:1311;
MainRule "str:~" "msg:tilde (~) character" "mz:BODY|URL|ARGS|$HEADERS_VAR:Cookie" "s:$XSS:4" id:1312;
MainRule "str:`" "msg:grave accent (`)" "mz:ARGS|URL|BODY|$HEADERS_VAR:Cookie" "s:$XSS:8" id:1314;
MainRule "rx:%[23]." "msg:double encoding" "mz:ARGS|URL|BODY|$HEADERS_VAR:Cookie" "s:$XSS:8" id:1315;

####################################
## Evading tricks IDs: 1400-1500 ##
####################################
MainRule "str:&#" "msg:utf7/8 encoding" "mz:ARGS|BODY|URL|$HEADERS_VAR:Cookie" "s:$EVADE:4" id:1400;
MainRule "str:%U" "msg:M$ encoding" "mz:ARGS|BODY|URL|$HEADERS_VAR:Cookie" "s:$EVADE:4" id:1401;

#############################
## File uploads: 1500-1600 ##
#############################
MainRule "rx:\.ph|\.asp|\.ht|\.jsp" "msg:asp/php/jsp/htaccess file upload" "mz:FILE_EXT" "s:$UPLOAD:8" id:1500;
MainRule "rx:^[\.a-z0-9_\- ]+$" negative "msg:uploaded filename contains non-printable ascii chars" "mz:FILE_EXT" "s:$UPLOAD:8" id:1501;

# The location where all the blocked request will be internally redirected.
location /RequestDenied {
internal;
return 403;
}
16 changes: 16 additions & 0 deletions lib/lemper-create.sh
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Expand Up @@ -145,6 +145,10 @@ server {
include /etc/nginx/includes/rules_staticfiles.conf;
include /etc/nginx/includes/rules_restriction.conf;
## Naxsi WAF rules.
#set \$naxsi_json_log 1;
#include /etc/nginx/includes/naxsi_core.rules;
## Default vhost directives configuration.
#include /etc/nginx/includes/rules_fastcgi_cache.conf;
include /etc/nginx/vhost/site_${FRAMEWORK}.conf;
Expand Down Expand Up @@ -234,6 +238,10 @@ server {
include /etc/nginx/includes/rules_staticfiles.conf;
include /etc/nginx/includes/rules_restriction.conf;
## Naxsi WAF rules.
#set \$naxsi_json_log 1;
#include /etc/nginx/includes/naxsi_core.rules;
## Default vhost directives configuration.
#include /etc/nginx/includes/rules_fastcgi_cache.conf;
include /etc/nginx/vhost/site_drupal.conf;
Expand Down Expand Up @@ -321,6 +329,10 @@ server {
include /etc/nginx/includes/rules_staticfiles.conf;
include /etc/nginx/includes/rules_restriction.conf;
## Naxsi WAF rules.
#set \$naxsi_json_log 1;
#include /etc/nginx/includes/naxsi_core.rules;
## Default vhost directives configuration.
#include /etc/nginx/includes/rules_fastcgi_cache.conf;
include /etc/nginx/vhost/site_laravel.conf;
Expand Down Expand Up @@ -408,6 +420,10 @@ server {
include /etc/nginx/includes/rules_staticfiles.conf;
include /etc/nginx/includes/rules_restriction.conf;
## Naxsi WAF rules.
#set \$naxsi_json_log 1;
#include /etc/nginx/includes/naxsi_core.rules;
## Default vhost directives configuration.
#include /etc/nginx/includes/rules_fastcgi_cache.conf;
include /etc/nginx/vhost/site_phalcon.conf;
Expand Down

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