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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。" m8 N4 K$ h6 z7 x1 w* K
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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。 ^3 s0 D( z+ u: K3 C2 r
- ~8 g1 I* u* x- O9 h. ~简单介绍一下这篇文章吧。7 y! @; W- Y& _9 c4 E" @* I
! i _, y) A9 { ~开启WP错误记录功能7 R1 ]1 M& F! @! S$ q
只需要修改wp-config.php的如下几行:
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@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* V" _$ W/ U+ h, F$ R
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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\'7 d! {7 o1 F( _6 T% @
[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--: p" Y n$ W+ W6 f, @" D
[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-- r! L0 S! l: m, ~1 J; s( i. 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。
# }' B8 v# J% k! a$ `: C/ ]SQL盲注扫描
3 g1 `1 A. e6 `+ k6 e5 V攻击者使用了类似"waitfor delay"和"benchmark"这样的函数来盲注。
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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\'--
% n7 Z' z+ D% s2 ]0 g& t[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)
+ _+ J+ q1 X& S" iGoogle一下大规模扫描
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, x# M3 c" A5 D. I, V/ k. M6 t 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;% r! Q/ ?! A% z$ i
' K2 ]+ C8 ^* P& e! z! ~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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