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98 lines
4.6 KiB
Markdown
98 lines
4.6 KiB
Markdown
# pentest-ec2-manager
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A set of utilities for quick starting, ssh-ing and stopping of temporary EC2 instances intended to be used for Web out-of-band tests (SSRF, reverse-shells, dns/http/other daemons).
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Those scripts are useful for managing *single* EC2 instance, which is picked based on specific characteristics: `key-name`, `image-id`, `security-group-name`, `instance-type`.
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Most common use case:
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- _Performing SSRF tests._ - When you want to quickly assert there is out-of-band request going over to attacker-controlled machine
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**CAUTION NOTE**: Files in this repository are preconfigured/hardcoded with some intial specific configurations. Those configurations are placed on top of each script file, one can change them easily.
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### Installation
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Installation is pretty straightforward assuming you have AWS account already and AWS Access Key (AKIA...) and AWS Secret Key with you.
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If you have AWS account, installation can be started using `init.sh` script. This script assumes you can use `sudo` to pull in prerequisities.
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```
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bash $ ./init.sh
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----------------------------------------------
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:: AWS EC2 single-instance management utilities installation script.
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This script is going to:
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- Update your repos & install packages such as: ssh, cron, jq, ruby, rubygems, awscli, gem bundler, gem 'aws-sdk-ec2'
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- Configure your AWS credentials
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- Create AWS security groups, EC2 key pairs
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- Integrate EC2 management aliases into the end of your .bashrc
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- Add a cron job that will notify you every two hours if your EC2 machine is up and running
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----------------------------------------------
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Would you like to proceed? [Y/n]
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```
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After hitting `Y` it shall configure AWS CLI for you, pull `aws-sdk-ec2` for ruby and then create Security Groups, Key Pairs and append things to your bashrc.
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### Usage
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After script installation is over, your bash will get preloaded (in `~/.bashrc`) with following aliases:
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* `startpentestec2` - Starts EC2 Instance if it exists, otherwise creates it
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* `stoppentestec2` - Stops EC2 Instance
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* `terminatepentestec2` - Terminates EC2 Instance (which means also deletes that instance's Elastic Block Store / hdd)
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* `sshpentestec2` - Attemtps to SSH into managed EC2 instance.
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* `getpentestec2` - Obtains IPv4 address of managed EC2 instance.
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* `checkpentestec2` - Prints out EC2 Instance status (running, stopped, notcreated, pending, etc)
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If you do not want to use bash aliases, or prefer having it your own way, you can call the `aws-manager.rb` script directly:
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```
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bash $ ruby aws-manager.rb --help
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Usage: aws-manager.rb [options] <func> <name>
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Available 'func' values:
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- start Starts an EC2 instance. If it does not exist, it is to be created
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- stop Stops the EC2 instance. It does not terminate it.
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- restart Restarts the EC2 instance
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- terminate Terminates the EC2 instance.
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- address Gets an IPv4 address of the EC2 instance. If verbose options is set, will return more FQDN also.
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- status Checks what is a status of picked EC2 instance.
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- ssh Opens a ssh connection with specified instance. If it is not running, it is to be created and started.
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- notify Sends gnome notification using "notify-send" with running instance uptime.
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Options:
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-h, --help Display this screen
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-q, --quiet Surpress informative output.
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-v, --verbose Turn on verbose logging.
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--debug Turn on debug logging.
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-d, --aws-path=PATH Path to shared AWS credentials file. Default value that will be used: $AWS_PATH/credentials
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--profile=NAME AWS credentials profile to use. Should no option is given, "default" is used.
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-p, --region=REGION AWS regoin to use. Default one: "us-east-1".
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-i, --image-id=ID AWS image ID to create an EC2 from. Default: 'ami-07360d1b1c9e13198
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-k, --key-name=KEY AWS EC2 Key Name to use. Default: 'ec2-pentest-key
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-s, --security-group-name=NAME AWS EC2 Security Group name to use. Default: 'ec2-pentest-usage
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-t, --instance-type=TYPE Instance type to spin. Default: 't2.micro
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-u, --user=USER SSH user to log into when doing 'ssh'. Default: 'ec2-user
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```
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Typical usage boils down to issuing `func` operations. Eventually one would like to observe what happens under the hood using one of those flags:
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* `-v`
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* `--debug`
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On the other hand, it is possible to surpress script's output nearly entirely using:
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* `-q`
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flag.
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### TODO
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* Test, bug fixes
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* Support different Regions. Currently scripts are fixed on using one region.
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* Support more than one instance. Very far aim to reach.
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