nginx服务器防sql注入/溢出攻击/spam及禁User-agents

在配置文件添加如下字段即可

[code lang="js"]</code>server {## 禁SQL注入 Block SQL injectionsset $block_sql_injections 0;if ($query_string ~ “union.*select.*\() {set $block_sql_injections 1;}if ($query_string ~ “union.*all.*select.*”) {set $block_sql_injections 1;}if ($query_string ~ “concat.*\() {set $block_sql_injections 1;}if ($block_sql_injections = 1) {return 444;}[/code]## 禁掉文件注入[code lang="js"]</code>set $block_file_injections 0;if ($query_string ~ “[a-zA-Z0-9_]=http://”) {set $block_file_injections 1;}if ($query_string ~ “[a-zA-Z0-9_]=(\.\.//?)+”) {set $block_file_injections 1;}if ($query_string ~ “[a-zA-Z0-9_]=/([a-z0-9_.]//?)+”) {set $block_file_injections 1;}if ($block_file_injections = 1) {return 444;}[/code]## 禁掉溢出攻击[code lang="js"]</code>set $block_common_exploits 0;if ($query_string ~ “(<|%3C).*script.*(>|%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 $block_common_exploits 1;}if ($query_string ~ “mosConfig_[a-zA-Z_]{1,21}(=|\%3D)”) {set $block_common_exploits 1;}if ($query_string ~ “base64_(en|de)code\(.*\)”) {set $block_common_exploits 1;}if ($block_common_exploits = 1) {return 444;}[/code]## 禁spam字段[code lang="js"]</code>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;}[/code]## 禁掉user-agents[code lang="js"]</code>set $block_user_agents 0;# Don’t disable wget if you need it to run cron jobs!#if ($http_user_agent ~ “Wget”) {# set $block_user_agents 1;#}# Disable Akeeba Remote Control 2.5 and earlierif ($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;}}<code>[/code]

说明:防sql注入/溢出攻击/spam采用禁掉URL中包含的字段实现,请根据需要合理添加

返回444,是完全不回应客户端,比403更加非常节省系统资源

[code lang="js"]</code>## Block SQL injectionsset $block_sql_injections 0;if ($query_string ~ "union.*select.*\(") {set $block_sql_injections 1;}if ($query_string ~ "union.*all.*select.*") {set $block_sql_injections 1;}if ($query_string ~ "concat.*\(") {set $block_sql_injections 1;}if ($block_sql_injections = 1) {return 403;}<code>[/code]

[code lang="js"]</code>## Block file injectionsset $block_file_injections 0;if ($query_string ~ "[a-zA-Z0-9_]=http://") {set $block_file_injections 1;}if ($query_string ~ "[a-zA-Z0-9_]=(\.\.//?)+") {set $block_file_injections 1;}if ($query_string ~ "[a-zA-Z0-9_]=/([a-z0-9_.]//?)+") {set $block_file_injections 1;}if ($block_file_injections = 1) {return 403;}<code>[/code]

[code lang="js"]</code>## Block common exploitsset $block_common_exploits 0;if ($query_string ~ "(<|%3C).*script.*(>|%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 $block_common_exploits 1;}if ($query_string ~ "mosConfig_[a-zA-Z_]{1,21}(=|\%3D)") {set $block_common_exploits 1;}if ($query_string ~ "base64_(en|de)code\(.*\)") {set $block_common_exploits 1;}if ($block_common_exploits = 1) {return 403;}<code>[/code]

[code lang="js"]</code>## Block spamset $block_spam 0;if ($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 403;}<code>[/code]

[code lang="js"]</code>## Block user agentsset $block_user_agents 0;# Don't disable wget if you need it to run cron jobs!#if ($http_user_agent ~ "Wget") {# set $block_user_agents 1;#}# Disable Akeeba Remote Control 2.5 and earlierif ($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 403;}<code>[/code]

原文地址:http://www.07net01.com/security/nginxfuwuqifangsqlzhuru_yichugongji_spamjijinUser_agents_11794_1346139949.html


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