satori-imager

The Imager part of the Satori-Suite

- pip install satori-imager

The Satori Imager is the tool that creates Satori Images from hosts.

Thing of it as a find on steroids, with Python Extensions, Remote Support and file storage.

The entrypoint satori-imager

$ satori-imager 
usage: satori-imager [-h] [-e EXCLUDED_DIRS] [-l LOAD_EXTENSIONS] [-q]
                     [-t THREADS] [-r REMOTE]
                     entrypoints [entrypoints ...] image_file
satori-imager: error: the following arguments are required: entrypoints, image_file

Imaging the /etc directory of the local host in a Satori Image file named etc_dir_simple.json.gz:

$ satori-imager /etc etc_dir_simple   # filetype extension (".json.gz") extension is appended automatically
[+] Directory '/etc/audit' could not be listed
[+] Directory '/etc/grub.d' could not be listed
[+] Directory '/etc/firewalld' could not be listed
[+] Directory '/etc/dhcp' could not be listed
[+] Directory '/etc/sudoers.d' could not be listed
[+] Directory '/etc/libvirt' could not be listed
[+] Directory '/etc/sssd' could not be listed
[+] Directory '/etc/audisp' could not be listed
[+] Directory '/etc/cups/ssl' could not be listed
[+] Directory '/etc/lvm/archive' could not be listed
[+] Directory '/etc/lvm/cache' could not be listed
[+] Directory '/etc/lvm/backup' could not be listed
[+] Directory '/etc/openvpn/client' could not be listed
[+] Directory '/etc/openvpn/server' could not be listed
[+] Directory '/etc/polkit-1/localauthority' could not be listed
[+] Directory '/etc/polkit-1/rules.d' could not be listed
[+] Directory '/etc/vmware-tools/GuestProxyData/trusted' could not be listed
[+] Processed 2064 files
[+] Image Generated!
[!] Stored to file 'etc_dir_simple.json.gz'

Satori Imager fails to list several directories due to privileges:

$ ls -l /etc/ | grep sssd
drwx------.  3 root root     4096 Feb 17 20:51 sssd

And now it can inspected with satori-file (from satori-core):

$ satori-file etc_dir_simple.json.gz
{
 "metadata":{
  "uuid":"e4d131b3-2ace-4e0a-be74-528c892a910c",
  "system":{
   "type":"Linux",
   "platform":"Linux-4.15.3-300.fc27.x86_64-x86_64-with-fedora-27-Twenty_Seven",
   "hostname":"FkUkO43a",
   "machine":"x86_64",
   "release":"4.15.3-300.fc27.x86_64",
   "processor":"x86_64",
   "user":"user1"
[...]
},
  "data":{
    "filesystem":{
     "/":{
      "type":"D",
      "contents":{
       "etc":{
        "type":"D",
        "contents":{
         "gdbinit.d":{
          "type":"D",
          "contents":{},
          "stat":{
           "blksize":4096,
           "blocks":8,
           "dev":64768,
           "gid":0,
           "ino":1048304,
           "mode":16877,
           "nlink":2,
           "rdev":0,
           "size":4096,
           "uid":0
          },
 [...]

This is actually my dev machine

---

Running extensions upon Imaging

The -l argument loads extensions (several can already be found in satori-extensions repo). Typical example is the need to compute hashes for each file in a folder:

$ satori-imager /etc etc_dir_simple.md5 -l satori-extensions/hash/md5.py
[!] Extension 'md5' loaded                
[...]
[+] [Errno 13] Permission denied: '/etc/shadow' . File '/etc/shadow' could not be opened.
[...]
[+] Processed 2064 files
[+] Image Generated!
[!] Stored to file 'etc_dir_simple.md5.json.gz'

The md5.py extension uses the with_open hook, and forces the Satori Imager to use open() to all files, in order to retrieve (and calculate the hash) of the contents.

But the /etc/shadow cannot be opened and read by non-root users, hence the Errno 13 warning...

Check:

$ satori-file etc_dir_simple.json.gz | gron | grep md5
json.data.filesystem["/"].contents.etc.contents.DIR_COLORS.md5 = "9856a682b9e1ac6ecaac082d35f8858c";
json.data.filesystem["/"].contents.etc.contents.GREP_COLORS.md5 = "6dae2e66d0089d8479b14855d4203497";
json.data.filesystem["/"].contents.etc.contents.NetworkManager.contents.VPN.contents["nm-openconnect-service.name"].md5 = "d5077be47811e9be2a6efc7015d36d18";
json.data.filesystem["/"].contents.etc.contents.NetworkManager.contents.VPN.contents["nm-openvpn-service.name"].md5 = "0b93d73970088faff0b455bad04b78fa";
json.data.filesystem["/"].contents.etc.contents.NetworkManager.contents.VPN.contents["nm-pptp-service.name"].md5 = "56856ed0df336411d802ea364f4d8960";
json.data.filesystem["/"].contents.etc.contents.NetworkManager.contents.VPN.contents["nm-ssh-service.name"].md5 = "631a3c73c7e27a5a98b929aa616a0398";
json.data.filesystem["/"].contents.etc.contents.NetworkManager.contents.VPN.contents["nm-vpnc-service.name"].md5 = "d56f8a6ad32c94a1d28503a6950cefc3";
[...]

gron can make JSON greppable

---

Going remote!

If satori-remote package is available, the Satori Imager can accept the -r argument. The -r (or --remote) accepts URIs. For SSH/SFTP protocol to the remote host 10.5.0.12, it will be:

$ satori-imager /etc etc_dir_10_5_0_12.md5 -l ../satori-extensions/hash/md5.py -r ssh://10.5.0.12
[+] Connecting to 'ssh://10.5.0.12'
Username: user1
Password:
[!] Connected to 10.5.0.12
[!] Extension 'md5' loaded
[...]
[+] Processed 2064 files
[+] Image Generated!
[!] Stored to file 'etc_dir_10_5_0_12.md5.json.gz'

And the etc_dir_10_5_0_12.md5.json.gz contains data about the /etc of the remote machine. No agents installed, no puppies harmed.