Apache模块mod_security 和 Nginx过滤配置
1.安装mod_security
yum install mod_security
2.安装mod_security_crs
yum install mod_security_crs
3.在/etc/httpd/modsecurity.d建立exclude.conf文件用来排除无需检查的文件
<IfModule mod_security2.c>
<Location /PATH/>
SecRuleEngine off
</Location>
</IfModule>
白名单:
编辑modsecurity.conf
#vi /etc/modsecurity/modsecurity.conf
增加一行
SecRule REMOTE_ADDR "@ipMatch 192.168.30.0/24" "phase:1,nolog,allow"
忽略某个站的安全检测:
在VirtualHost 段内加入
SecRuleInheritance Off
SecRule通常规则的格式如下：
SecRule VARIABLES OPERATOR [ACTIONS]
第一部分，VARIABLES描述哪个变量被检查,取值通常有
REQUEST_COOKIES,REQUEST_COOKIES_NAMES,REQUEST_FILENAME,ARGS_NAMES,ARGS,XML,REQUEST_URI
第二部分，OPERATOR描述如何进行检查
第三部分可选的，ACTIONS，描述当操作进行成功的匹配一,个变量时具体怎么做。
// 示例
#如果cookie名称中有sg,通过
SecRule REQUEST_COOKIES_NAMES sg "phase:1,nolog,allow"
#匹配ip,直接通过
SecRule REQUEST_URI "@ipMatch 192.168.30.0/24" "phase:1,nolog,allow"
#可以使用rx来使用正则表达式,参数中含有dirty的通过
SecRule ARGS "@rx dirty" "phase:1,nolog,allow"
配置
# http guardian
SecGuardianLog |/etc/httpd/httpd-guardian
=======================================================================
Nginx的防注入配置:
建立drop_sql.conf文件,复制以下内容:
## Block SQL injections
set $block_sql_injections 0;
if ($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;
}
## Block file injections
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 403;
}
## Block common exploits
set $block_common_exploits 0;
if ($query_string ~ "(<|<).*script.*(>|>)") {
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}(=|\=)") {
set $block_common_exploits 1;
}
if ($query_string ~ "base64_(en|de)code\(.*\)") {
set $block_common_exploits 1;
}
if ($block_common_exploits = 1) {
return 403;
}
## Block spam
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 403;
}
## Block user agents
set $block_user_agents 0;
# Don't disable wget if you need it to run cron jobs!
#if ($http_user_agent ~ "Wget") {
# set $block_user_agents 1;
#}
# Disable Akeeba Remote Control 2.5 and earlier
if ($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 403;
}
***********
在server段中包含该配置,
include drop_sql.conf;
