##add by 20140321#######nginx防sql注入##########
###start####
if ( $query_string ~ ".[\;'\]." ){
return 444;
}
if ($query_string ~ ".(insert|select|delete|update|count|*|%|master|truncate|declare|\'|\;|and|or|(|)|exec). ")
{
return 444;
}
if ($request_uri ~ "(cost()|(concat()") {
return 444;
}
if ($request_uri ~ "[+|(%20)]union[+|(%20)]") {
return 444;
}
if ($request_uri ~ "[+|(%20)]and[+|(%20)]") {
return 444;
}
if ($request_uri ~ "[+|(%20)]select[+|(%20)]") {
return 444;
}
set $block_file_injections 0;
if ($querystring ~ "[a-zA-Z0-9]=(..//?)+") {
set $block_file_injections 1;
}
if ($querystring ~ "[a-zA-Z0-9]=/([a-z0-9_.]//?)+") {
set $block_file_injections 1;
}
if ($block_file_injections = 1) {
return 448;
}
set $block_common_exploits 0;
if ($query_string ~ "(|%3E)") {
set $block_common_exploits 1;
}
if ($query_string ~ "GLOBALS(=|[|\%[0-9A-Z]{0,2})") {
set $block_common_exploits 1;
}
if ($query_string ~ "_REQUEST(=|[|\%[0-9A-Z]{0,2})") {
set $block_common_exploits 1;
}
if ($query_string ~ "proc/self/environ") {
set $block_common_exploits 1;
}
if ($querystring ~ "mosConfig[a-zA-Z_]{1,21}(=|\%3D)") {
set $block_common_exploits 1;
}
if ($querystring ~ "base64(en|de)code(.*)") {
set $block_common_exploits 1;
}
if ($block_common_exploits = 1) {
return 444;
}
set $block_spam 0;
if ($query_string ~ "\b(ultram|unicauca|valium|viagra|vicodin|xanax|ypxaieo)\b") {
set $block_spam 1;
}
if ($query_string ~ "\b(erections|hoodia|huronriveracres|impotence|levitra|libido)\b") {
set $block_spam 1;
}
if ($query_string ~ "\b(ambien|blue\spill|cialis|cocaine|ejaculation|erectile)\b") {
set $block_spam 1;
}
if ($query_string ~ "\b(lipitor|phentermin|pro[sz]ac|sandyauer|tramadol|troyhamby)\b") {
set $block_spam 1;
}
if ($block_spam = 1) {
return 444;
}
set $block_user_agents 0;
if ($http_user_agent ~ "Wget") {
set $block_user_agents 1;
}
Disable Akeeba Remote Control 2.5 and earlier
if ($http_user_agent ~ "Indy Library") {
set $block_user_agents 1;
}
Common bandwidth hoggers and hacking tools.
if ($http_user_agent ~ "libwww-perl") {
set $block_user_agents 1;
}
if ($http_user_agent ~ "GetRight") {
set $block_user_agents 1;
}
if ($http_user_agent ~ "GetWeb!") {
set $block_user_agents 1;
}
if ($http_user_agent ~ "Go!Zilla") {
set $block_user_agents 1;
}
if ($http_user_agent ~ "Download Demon") {
set $block_user_agents 1;
}
if ($http_user_agent ~ "Go-Ahead-Got-It") {
set $block_user_agents 1;
}
if ($http_user_agent ~ "TurnitinBot") {
set $block_user_agents 1;
}
if ($http_user_agent ~ "GrabNet") {
set $block_user_agents 1;
}
if ($block_user_agents = 1) {
return 444;
}