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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。$ S. J8 _: @- g" Y+ C$ k! S) a7 E
2 Y W# o& \; z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。
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* \5 I* w6 U5 W z) W1 c% w) ~简单介绍一下这篇文章吧。
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7 q4 o) y$ I9 H9 u& ?. p! j( T! g开启WP错误记录功能1 S. Q) V4 U! j0 j1 Q& \
只需要修改wp-config.php的如下几行:7 N* _4 ]# ~8 n& |6 Q! w2 t
W" }6 \3 e) |/ V) E9 g! Z@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7 I/ |7 P) `$ X/ S8 G: d. n8 K/ Q
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[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\'. h [9 I/ l( o
[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--
% _) D2 H: ^! z/ |1 p[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--
& C; h, ^' l/ w7 r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。 / y; ]( R8 i8 _: ]' U( R
SQL盲注扫描; w, p9 L! l" S8 V8 ^
攻击者使用了类似"waitfor delay"和"benchmark"这样的函数来盲注。7 p, g% ?/ ?# K3 p7 _, z
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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\'--- O, ?; u/ N0 S8 v' x/ o
[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)" q/ D/ |4 ?- y2 H
Google一下大规模扫描6 [7 F- I6 Y" K7 |
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$ Q; i% A* c8 _# `; ?8 u 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;6 F: B# x d9 [ R8 l7 x i& S9 Q
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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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