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- 这篇文章介绍了当WordPress开启错误记录以后,根据error_log来发现SQL注入攻击的思路。
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+ n0 M& ~: d2 O9 e吸引Cocoa的是这个博客其实是TrustWave公司下属的一个叫Spiderlab团队的官方博客,貌似比较有意思。例如它提到了Honeypot Alert这个标签里的文章都是分析他们一个Web蜜罐的Apache access_log日志的。6 D8 m& ^6 V: x! z7 i% w+ F! R
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简单介绍一下这篇文章吧。
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开启WP错误记录功能) r# c; ]" p. n* c) v
只需要修改wp-config.php的如下几行:
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) I( S- j- G+ E' U+ M7 B@ini_set('log_errors','On'); @ini_set('display_errors','Off'); @ini_set('error_log','/home/example.com/logs/php_error.log');SQL 注入扫描
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7 d8 z' G$ [+ q[07-Dec-2012 02:40:49] WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE id = -1\'' at line 1 for query SELECT text, author_id, date FROM WHERE id = -1\'
% W* o% v6 e4 ]/ N P: \[07-Dec-2012 02:40:50] WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE id = 999999.9 UNION ALL SELECT 0x31303235343830303536--' at line 1 for query SELECT text, author_id, date FROM WHERE id = 999999.9 UNION ALL SELECT 0x31303235343830303536--2 ~; i) u& E9 c" u% q0 T I7 Z
[07-Dec-2012 02:40:53] WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE id = 999999.9 UNION ALL SELECT 0x31303235343830303536,0x313032353438303035' at line 1 for query SELECT text, author_id, date FROM WHERE id = 999999.9 UNION ALL SELECT 0x31303235343830303536,0x31303235343830303536--1 U* l0 f+ R# C
上面的日志就是在暴力猜解表的列数,那个巨大的十六进制值会被解析成null。 2 W0 [" N+ ^- `
SQL盲注扫描
& V9 f, R6 r( W, e攻击者使用了类似"waitfor delay"和"benchmark"这样的函数来盲注。* l- K) K& d5 V; Q1 b/ m
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[07-Dec-2012 02:43:21] WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE id = -1; if (1=1) waitfor delay \'00:00:05\'--' at line 1 for query SELECT text, author_id, date FROM WHERE id = -1; if (1=1) waitfor delay \'00:00:05\'--$ d4 |6 G+ `5 c) c4 Y
[07-Dec-2012 02:43:27] WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE id = -1 and if(1=1,BENCHMARK(8623333,MD5(0x41)),0)' at line 1 for query SELECT text, author_id, date FROM WHERE id = -1 and if(1=1,BENCHMARK(8623333,MD5(0x41)),0)
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僵尸网络控制着可能使用被感染主机来识别潜在的目标。下面是该公司的蜜罐捕获到的一个RFI(远程文件包含)攻击代码里的片段: - sub google() { my @list; my $key = $_[0]; for (my $i=0; $i<=400; $i+=10){ my $search = ("http://www.google.com/search?q=".&key($key)."&num=100&filter=0&start=".$i); my $res = &search_engine_query($search); while ($res =~ m/<a href="\"?http:\/\/([^">\"]*)\//g) { if ($1 !~ /google/){ my $link = $1; my @grep = &links($link); push(@list,@grep); } } } return @list;
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Cocoa总结:文章比较简单,但是从日志来检测攻击貌似是目前流行的一个方向。
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