跳转至

LampSecurity CTF7

知识整理
sql注入漏洞
密码复用
sudo提权

usershell

目标IP:192.168.205.139

端口信息

22/tcp    open   ssh
80/tcp    open   http
137/tcp   closed netbios-ns
138/tcp   closed netbios-dgm
139/tcp   open   netbios-ssn
901/tcp   open   samba-swat
5900/tcp  closed vnc
8080/tcp  open   http-proxy
10000/tcp open   snet-sensor-mgmt

8080端口存在Web服务

http://192.168.205.139:8080/index.php

image-20231214184307634

html注释中泄露了sql语句，尝试注入，获得数据库中的用户名和密码的密文

e22f07b17f98e0d9d364584ced0e3c18 my2cents
0d9ff2a4396d6939f80ffe09b1280ee1 transformersrule
2146bf95e8929874fc63d54f50f1d2e3 turtles77
9f80ec37f8313728ef3e2f218c79aa23 Shelly2012
5d93ceb70e2bf5daa84ec3d0cd2c731a qwer1234
ed2539fe892d2c52c42a440354e8e3d5 madrid
9c42a1346e333a770904b2a2b37fa7d3 somepassword
3a24d81c2b9d0d9aaf2f10c6c9757d4e LosAngelesLakers
4773408d5358875b3764db552a29ca61 Jets4Ever
b2a97bcecbd9336b98d59d9324dae5cf chuck33

cmd5解密获得明文，其余的没有尝试，第一个用户brian:my2cents即可登录SSH

rootshell

sudo提权

sudo -l

User brian may run the following commands on this host:
    (ALL) ALL

可以以root身份执行任意命令

sudo su获得root权限