l9explore

l9explore

l9explore is a plugin based tool doing deep exploration on a wide range of protocols. It can be used to expose leaks, misconfigurations and vulnerabilities on any IP network.

It is the last layer in the l9 tool suite.

Features

• Deep protocol exploration
• Plugin based system
• Low memory/CPU footprint
• Multistage (WIP)

Usage

Explore services

l9explore service -h

Displays help for the list command.

Installation Instructions

From Binary

The installation is easy. You can download the pre-built binaries for your platform from the Releases page.

You should also start by downloading our stock plugins from the release page.

▶ chmod +x l9explore-linux-64
▶ mv l9explore-linux-64 /usr/local/bin/l9explore
▶ mkdir ~/.l9/plugins/service
▶ curl -L https://github.com/LeakIX/l9plugins/releases/download/v0.6.0/l9plugins-amd64.tar.gz|tar -xzvC ~/.l9/plugins

From Source

▶ GO111MODULE=on go get -u -v github.com/LeakIX/l9explore/cmd/l9explore
▶ ${GOPATH}/bin/l9explore -h

Running l9explore

l9explore speaks l9format. It reads from stdin and outputs results on stdout.

An usual pipeline would be to use it with l9tcpid to identify the protocols to explore.

$ ulimit -n 4096 
$ sudo ip4scout random -r 25000 -p 27017,9200|l9tcpid service --deep-http --max-threads=2048|tee services.json|l9explore service --explore-timeout 5s -t 2048 -l|tee leaks.json|l9filter transform -i l9 -o human
2020/12/15 01:28:56 selected input : l9
2020/12/15 01:28:56 selected output :  human
2020/12/15 01:28:56 Recommended blacklist loaded
2020/12/15 01:28:56 30 networks in blacklist
2020/12/15 01:28:56 Loaded 2 ports to scan
2020/12/15 01:28:56 Using source port 7427
2020/12/15 01:28:56 Listening!
EVENT: leak IP: 200.104.19.66, PORT:9200, PROTO:elasticsearch, SSL:false
HTTP/1.1 200 OK
content-type: application/json; charset=UTF-8
content-length: 493

NoAuth
Cluster info:
...
EVENT: leak IP: 201.71.22.54, PORT:27017, PROTO:mongo, SSL:false
HTTP/1.0 200 OK
Connection: close
Content-Type: text/plain
Content-Length: 85
It looks like you are trying to access MongoDB over HTTP on the native driver port.
Found 1 collections:
Found collection "system.version"

EVENT: leak IP: 202.65.137.161, PORT:9200, PROTO:elasticsearch, SSL:false
HTTP/1.1 200 OK
content-type: application/json; charset=UTF-8
content-length: 493
NoAuth
Cluster info:
....

will :

• Run ip4scout to get a list of 9200,27017 open ports
• Run l9tcpid to identify "real" elasticsearch and mongodb servers
  • And save that output to services.json
• Run l9explore and use each plugin against its protocol to output leak events.
  • And save that output to leaks.json
• Use l9filter to translate l9format in a comprehensible output

Creating plugins

Checkout the l9plugin documentation on how to create your plugins.