app-waf

一个简单的waf模块。A sample Web Application Firwork using Perl and RE ban for suspicous web access

用来实时探测web 非法访问，统计非法访问的ip ，web状态，访问url，来源web url。结合iptables可以实现实现实时封禁。

实例说明 见example目录（包括日志）

use App::Waf;
my $filename = "example.acess";#日志文件
my $numlines  = 50000; #要处理的行数,从后读。
my $line=tail($filename,$$numlines);
my ($log,$zcount,$zip,$zrequrl,$zstatus,$siteurl)=initCount($line);

print "==============Attack Summary ==================\n";
print "\nThe total attack count: $zcount \n";
print "\nThe count from source IP:  \n\n";
print "$_\=> $zip->{$_} \n" for(sort  keys %{$zip});
print "The count From request Url:  \n\n";
print "$_\=> $zrequrl->{$_} \n" for(sort keys %{$zrequrl});
print "\n\nThe count From Http Status:  \n\n";
print "$_\=> $zstatus->{$_} \n" for(sort keys %{$zstatus});
print "\n\nThe count From Site Url:  \n\n";
print "$_\=> $siteurl->{$_} \n" for(sort keys %{$siteurl});

结合nginx 和 iptables 进行实时banip的实例（example/banip.pl）

加入crontab 每5分钟执行一次。

echo "*/5 * * * * perl $dir/example/ngixban.pl >> bianip.logs 2>&1 " >> /var/spool/cron/root
echo "*/5 * * * * perl $dir/example/synban.pl >> bianip.logs 2>&1 " >> /var/spool/cron/root

结果展示

+++++++++++++++++++++++++ban for SYN attact+++++++++++++++++++++

Fri Jul 14 15:46:02 2017 Ban The IP ：173.173.199.246
Fri Jul 14 15:46:02 2017 :band 173.173.199.246
Fri Jul 14 15:46:02 2017 73.6.1.122 SYN攻击次数: 6
Fri Jul 14 15:46:02 2017 103.56.116.150 SYN攻击次数: 2
Fri Jul 14 15:47:01 2017 173.173.199.246 SYN攻击次数: 19
Fri Jul 14 15:47:01 2017 Ban The IP ：173.173.199.246
Fri Jul 14 15:47:01 2017 baned 173.173.199.246
Fri Jul 14 15:47:01 2017 103.56.116.150 SYN攻击次数: 1
Fri Jul 14 15:48:01 2017 173.173.199.246 SYN攻击次数: 19
Fri Jul 14 15:48:01 2017 Ban The IP ：173.173.199.246
Fri Jul 14 15:48:01 2017 baned 173.173.199.246
Fri Jul 14 15:48:01 2017 103.56.116.150 SYN攻击次数: 1
Fri Jul 14 15:49:01 2017 173.173.199.246 SYN攻击次数: 17
Fri Jul 14 15:49:01 2017 Ban The IP ：173.173.199.246
Fri Jul 14 15:49:01 2017 band alread!

==============Attack Summary ==================

The total attack count: 131

The count from source IP:

103.248.223.116=> 19
103.37.3.202=> 2
106.39.200.46=> 3
107.151.213.123=> 1
115.148.98.127=> 2
180.76.6.51=> 99
59.42.147.17=> 4
64.16.214.100=> 1

The count From request Url:

/?cat=%0acat%20/etc/passwd%0a&paged=3=> 1
/?cat=%22%26cat%20/etc/passwd%26%22&paged=3=> 1
/?cat=%22;print(md5(acunetix_wvs_security_test));%24a%3d%22&paged=2=> 1
/?cat=%22;print(md5(acunetix_wvs_security_test));%24a%3d%22&paged=3=> 1
/?cat=%24%7b%40print(md5(acunetix_wvs_security_test))%7d%5c&paged=2=> 1
/?cat=%24%7b%40print(md5(acunetix_wvs_security_test))%7d%5c&paged=3=> 1
/?cat=%24%7b%40print(md5(acunetix_wvs_security_test))%7d&paged=2=> 1
/?cat=%24%7b%40print(md5(acunetix_wvs_security_test))%7d&paged=3=> 1
/?cat=%26cat%20/etc/passwd%26&paged=3=> 1
/?cat=%60cat%20/etc/passwd%60&paged=3=> 1
/?cat=%7ccat%20/etc/passwd%23&paged=3=> 1
/?cat='%26cat%20/etc/passwd%26'&paged=3=> 1
/?cat=';print(md5(acunetix_wvs_security_test));%24a%3d'&paged=2=> 1
/?cat=';print(md5(acunetix_wvs_security_test));%24a%3d'&paged=3=> 1
/?cat=(select(0)from(select(sleep(15)))v)/*'%2b(select(0)from(select(sleep(15)))v)%2b'%22%2b(select(0)from(select(sleep(15)))v)%2b%22*
/&paged=3=> 4
/?cat=.%5c%5c./.%5c%5c./.%5c%5c./.%5c%5c./.%5c%5c./.%5c%5c./etc/passwd&paged=3=> 1
/?cat=..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%afetc/passwd&paged=3=> 1