Weekly thread to discuss whatever you’re working on, big or small, at work or in your free time.

  • Red
    link
    fedilink
    English
    66 months ago

    A medium interaction SSH honeypot backed by a basic LLM that believes it’s bash.

    I’m impressed at the ability to retain limited state, and respond ‘reasonably enough’ that it’ll probably allow first stage automated attacks to be captured… but at the moment, it’s way too easy to peer behind the curtain.

    It’s quite jarring when your bash terminal starts telling you a story about a happy dragon in response to some weird command.

    • Red
      link
      fedilink
      English
      1
      edit-2
      6 months ago

      Yep… sigh

      me@somewhere:~$ ssh -p 8022 root@localhost
      The authenticity of host '[localhost]:8022 ([127.0.0.1]:8022)' can't be established.
      ECDSA key fingerprint is SHA256:W6aKaaaaaaaaaaaaaaaaaaaaaaaa+cvaaaaaaaaaaaw.
      This key is not known by any other names
      Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
      Warning: Permanently added '[localhost]:8022' (ECDSA) to the list of known hosts.
      root@localhost's password: 
      Welcome to Ubuntu 16.04.1 LTS (GNU/Linux 4.4.4-31-generic x86_64)
      
      * Documentation:  https://help.ubuntu.com
      * Management:     https://landscape.canonical.com
      * Support:        https://ubuntu.com/advantage
      
      54 packages can be updated.
      20 updates are security updates.
      
      
      ----------------------------------------------------------------
      Ubuntu 16.04.1 LTS                          built 2016-10-10
      ----------------------------------------------------------------
      last login: Sun Nov 19 19:40:44 2017 from 172.99.99.99
      root@host:~$ whoami
      root
      root@host:~$ ls
      README log.txt
      root@host:~$ cat README
      # NOTE: Do not reset this server, as it provides essential services.
      root@host:~$ cat log.txt
      Mar  3 15:37:01 root kernel: Boot time configuration written to /etc/default/grub
      Mar  3 15:37:02 root kernel: Loading initial ram disk images...
      Mar  3 15:37:03 root kernel: Linux version 4.9.0-6-amd64 (buildid@Debian) (gcc version 8.2.0 ( Ubuntu 8.2.0-14-ga )) #1 SMP Debian 4.9.141-1 (2017-03-09)
      Mar  3 15:37:03 root kernel: Linux command line options: ro root=UUID=6f8e4a7c-35d5-4b2d-93a4-a4335a95f58c rw initramfs-version=4.9.0-6-amd64 rd.driver.video=i915
      Mar  3 15:37:03 root kernel: Boot arguments: ro root=UUID=6f8e4a7c-35d5-4b2d-93a4-a4335a95f58c rw initramfs-version=4.9.0-6-amd64 rd.driver.video=i915
      Mar  3 15:37:03 root kernel: Kernel arguments: ro root=UUID=6f8e4a7c-35d5-4b2d-93a4-a4335a95f58c rw initramfs-version=4.9.0-6-amd64 rd.driver.video=i915
      Mar  3 15:37:03 root kernel: Mounting system...
      Mar  3 15:37:03 root kernel: Mounted system...
      root@host:~$ echo "testing1234" > somefile.txt
      root@host:~$ echo "testing 23456" >> somefile.txt
      root@host:~$ cat somefile.txt
      testing1234
      testing 23456
      root@host:~$ echo tell me a story about a dragon
      Once upon a time, in a land far, far away, there lived a magnificent dragon named Scorch. Scorch was the most feared creature in all the land, with scales that shone like gold in the sunlight and eyes that glowed like embers. He roamed the countryside, breathing fire and destruction wherever he went, and no one dared to cross...
      
      • @mwguy
        link
        English
        06 months ago

        Instead of giving it a LLVM based shell, can you give it an actual shell in a container? Maybe backed by AppArmor or SELinux to prevent breakouts

        • Red
          link
          fedilink
          English
          26 months ago

          Tempting, but in order to reduce the potential attack surface, I’m likely just to create a simple simulator instead now.

          If it’s good enough to fool the first few interactions of an automated script, that’ll probably do. That’ll give me the curl/wget target they’re trying to insect me with, most likely.

          It means I can potentially create a single binary docker instance that can be reset practically instantly by deleting/reimporting.

  • @ComradeKhoumrag
    link
    English
    36 months ago

    Fixing other people’s crap because that’s the punishment for writing functional code

  • @0ddysseus
    link
    English
    26 months ago

    Mostly working on getting over covid! In the meantime, I got MacOS running in a VM which was a bit of fun. Host system is Linux Mint 21 and the VM is running through KVM/Qemu. I’ve been wanting to play with it for a while but I’m way too poor to get the hardware. Not a bad system overall, the installer is a bit hinky but users aren’t supposed to see that anyway. Haven’t dug into it much yet but I will when I find some time. Interested to see how closely the experience matches some of the Mac-aligned Linux distros.

    • shellsharksOPMA
      link
      English
      26 months ago

      Interesting, this is something I’ve yet to do. I’ve been seeing some interesting news about Asahi Linux for M1 macs im interested in trying out though.

  • @NonDollarCurrency@monero.town
    link
    fedilink
    English
    26 months ago

    At work, setting up windows server auditing in a way that doesn’t nuke the event viewer with millions of security entires. At home working on upgrading my proxmox.

  • Alex
    link
    English
    26 months ago

    World domination.

    On a more serious note… been trying to test various different tools I’ve found or read about and writing necessary scripts/programs.