-
server{
-
[...]
-
-
## Block SQL injections
-
set$block_sql_injections0;
-
if($query_string ~ "union.*select.*\("){
-
set$block_sql_injections1;
-
}
-
if($query_string ~ "union.*all.*select.*"){
-
set$block_sql_injections1;
-
}
-
if($query_string ~ "concat.*\("){
-
set$block_sql_injections1;
-
}
-
if($block_sql_injections = 1){
-
return403;
-
}
-
-
## Block file injections
-
set$block_file_injections0;
-
if($query_string ~ "[a-zA-Z0-9_]=http://"){
-
set$block_file_injections1;
-
}
-
if($query_string ~ "[a-zA-Z0-9_]=(\.\.//?)+"){
-
set$block_file_injections1;
-
}
-
if($query_string ~ "[a-zA-Z0-9_]=/([a-z0-9_.]//?)+"){
-
set$block_file_injections1;
-
}
-
if($block_file_injections = 1){
-
return403;
-
}
-
-
## Block common exploits
-
set$block_common_exploits0;
-
if($query_string ~ "(<|%3C).*script.*(>|%3E)"){
-
set$block_common_exploits1;
-
}
-
if($query_string ~ "GLOBALS(=|\[|\%[0-9A-Z]{0,2})"){
-
set$block_common_exploits1;
-
}
-
if($query_string ~ "_REQUEST(=|\[|\%[0-9A-Z]{0,2})"){
-
set$block_common_exploits1;
-
}
-
if($query_string ~ "proc/self/environ"){
-
set$block_common_exploits1;
-
}
-
if($query_string ~ "mosConfig_[a-zA-Z_]{1,21}(=|\%3D)"){
-
set$block_common_exploits1;
-
}
-
if($query_string ~ "base64_(en|de)code\(.*\)"){
-
set$block_common_exploits1;
-
}
-
if($block_common_exploits = 1){
-
return403;
-
}
-
-
## Block spam
-
set$block_spam0;
-
if($query_string ~ "\b(ultram|unicauca|valium|viagra|vicodin|xanax|ypxaieo)\b"){
-
set$block_spam1;
-
}
-
if($query_string ~"\b(erections|hoodia|huronriveracres|impotence|levitra|libido)\b"){
-
set$block_spam1;
-
}
-
if($query_string ~ "\b(ambien|blue\spill|cialis|cocaine|ejaculation|erectile)\b"){
-
set$block_spam1;
-
}
-
if($query_string ~"\b(lipitor|phentermin|pro[sz]ac|sandyauer|tramadol|troyhamby)\b"){
-
set$block_spam1;
-
}
-
if($block_spam = 1){
-
return403;
-
}
-
-
## Block user agents
-
set$block_user_agents0;
-
-
# Don't disable wget if you need it to run cron jobs!
-
#if ($http_user_agent ~ "Wget") {
-
# set $block_user_agents 1;
-
#}
-
-
# Disable Akeeba Remote Control 2.5 and earlier
-
if($http_user_agent ~ "Indy Library"){
-
set$block_user_agents1;
-
}
-
-
# Common bandwidth hoggers and hacking tools.
-
if($http_user_agent ~ "libwww-perl"){
-
set$block_user_agents1;
-
}
-
if($http_user_agent ~ "GetRight"){
-
set$block_user_agents1;
-
}
-
if($http_user_agent ~ "GetWeb!"){
-
set$block_user_agents1;
-
}
-
if($http_user_agent ~ "Go!Zilla"){
-
set$block_user_agents1;
-
}
-
if($http_user_agent ~ "Download Demon"){
-
set$block_user_agents1;
-
}
-
if($http_user_agent ~ "Go-Ahead-Got-It"){
-
set$block_user_agents1;
-
}
-
if($http_user_agent ~ "TurnitinBot"){
-
set$block_user_agents1;
-
}
-
if($http_user_agent ~ "GrabNet"){
-
set$block_user_agents1;
-
}
-
-
if($block_user_agents = 1){
-
return403;
-
}
-
}
