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JAW - A Graph-based Security Analysis Framework For Client-side JavaScript

By: Zion3R

An open-source, prototype implementation of property graphs for JavaScript based on the esprima parser, and the EsTree SpiderMonkey Spec. JAW can be used for analyzing the client-side of web applications and JavaScript-based programs.

This project is licensed under GNU AFFERO GENERAL PUBLIC LICENSE V3.0. See here for more information.

JAW has a Github pages website available at https://soheilkhodayari.github.io/JAW/.

Release Notes:


Overview of JAW

The architecture of the JAW is shown below.

Test Inputs

JAW can be used in two distinct ways:

  1. Arbitrary JavaScript Analysis: Utilize JAW for modeling and analyzing any JavaScript program by specifying the program's file system path.

  2. Web Application Analysis: Analyze a web application by providing a single seed URL.

Data Collection

  • JAW features several JavaScript-enabled web crawlers for collecting web resources at scale.

HPG Construction

  • Use the collected web resources to create a Hybrid Program Graph (HPG), which will be imported into a Neo4j database.

  • Optionally, supply the HPG construction module with a mapping of semantic types to custom JavaScript language tokens, facilitating the categorization of JavaScript functions based on their purpose (e.g., HTTP request functions).

Analysis and Outputs

  • Query the constructed Neo4j graph database for various analyses. JAW offers utility traversals for data flow analysis, control flow analysis, reachability analysis, and pattern matching. These traversals can be used to develop custom security analyses.

  • JAW also includes built-in traversals for detecting client-side CSRF, DOM Clobbering and request hijacking vulnerabilities.

  • The outputs will be stored in the same folder as that of input.

Setup

The installation script relies on the following prerequisites: - Latest version of npm package manager (node js) - Any stable version of python 3.x - Python pip package manager

Afterwards, install the necessary dependencies via:

$ ./install.sh

For detailed installation instructions, please see here.

Quick Start

Running the Pipeline

You can run an instance of the pipeline in a background screen via:

$ python3 -m run_pipeline --conf=config.yaml

The CLI provides the following options:

$ python3 -m run_pipeline -h

usage: run_pipeline.py [-h] [--conf FILE] [--site SITE] [--list LIST] [--from FROM] [--to TO]

This script runs the tool pipeline.

optional arguments:
-h, --help show this help message and exit
--conf FILE, -C FILE pipeline configuration file. (default: config.yaml)
--site SITE, -S SITE website to test; overrides config file (default: None)
--list LIST, -L LIST site list to test; overrides config file (default: None)
--from FROM, -F FROM the first entry to consider when a site list is provided; overrides config file (default: -1)
--to TO, -T TO the last entry to consider when a site list is provided; overrides config file (default: -1)

Input Config: JAW expects a .yaml config file as input. See config.yaml for an example.

Hint. The config file specifies different passes (e.g., crawling, static analysis, etc) which can be enabled or disabled for each vulnerability class. This allows running the tool building blocks individually, or in a different order (e.g., crawl all webapps first, then conduct security analysis).

Quick Example

For running a quick example demonstrating how to build a property graph and run Cypher queries over it, do:

$ python3 -m analyses.example.example_analysis --input=$(pwd)/data/test_program/test.js

Crawling and Data Collection

This module collects the data (i.e., JavaScript code and state values of web pages) needed for testing. If you want to test a specific JavaScipt file that you already have on your file system, you can skip this step.

JAW has crawlers based on Selenium (JAW-v1), Puppeteer (JAW-v2, v3) and Playwright (JAW-v3). For most up-to-date features, it is recommended to use the Puppeteer- or Playwright-based versions.

Playwright CLI with Foxhound

This web crawler employs foxhound, an instrumented version of Firefox, to perform dynamic taint tracking as it navigates through webpages. To start the crawler, do:

$ cd crawler
$ node crawler-taint.js --seedurl=https://google.com --maxurls=100 --headless=true --foxhoundpath=<optional-foxhound-executable-path>

The foxhoundpath is by default set to the following directory: crawler/foxhound/firefox which contains a binary named firefox.

Note: you need a build of foxhound to use this version. An ubuntu build is included in the JAW-v3 release.

Puppeteer CLI

To start the crawler, do:

$ cd crawler
$ node crawler.js --seedurl=https://google.com --maxurls=100 --browser=chrome --headless=true

See here for more information.

Selenium CLI

To start the crawler, do:

$ cd crawler/hpg_crawler
$ vim docker-compose.yaml # set the websites you want to crawl here and save
$ docker-compose build
$ docker-compose up -d

Please refer to the documentation of the hpg_crawler here for more information.

Graph Construction

HPG Construction CLI

To generate an HPG for a given (set of) JavaScript file(s), do:

$ node engine/cli.js  --lang=js --graphid=graph1 --input=/in/file1.js --input=/in/file2.js --output=$(pwd)/data/out/ --mode=csv

optional arguments:
--lang: language of the input program
--graphid: an identifier for the generated HPG
--input: path of the input program(s)
--output: path of the output HPG, must be i
--mode: determines the output format (csv or graphML)

HPG Import CLI

To import an HPG inside a neo4j graph database (docker instance), do:

$ python3 -m hpg_neo4j.hpg_import --rpath=<path-to-the-folder-of-the-csv-files> --id=<xyz> --nodes=<nodes.csv> --edges=<rels.csv>
$ python3 -m hpg_neo4j.hpg_import -h

usage: hpg_import.py [-h] [--rpath P] [--id I] [--nodes N] [--edges E]

This script imports a CSV of a property graph into a neo4j docker database.

optional arguments:
-h, --help show this help message and exit
--rpath P relative path to the folder containing the graph CSV files inside the `data` directory
--id I an identifier for the graph or docker container
--nodes N the name of the nodes csv file (default: nodes.csv)
--edges E the name of the relations csv file (default: rels.csv)

HPG Construction and Import CLI (v1)

In order to create a hybrid property graph for the output of the hpg_crawler and import it inside a local neo4j instance, you can also do:

$ python3 -m engine.api <path> --js=<program.js> --import=<bool> --hybrid=<bool> --reqs=<requests.out> --evts=<events.out> --cookies=<cookies.pkl> --html=<html_snapshot.html>

Specification of Parameters:

  • <path>: absolute path to the folder containing the program files for analysis (must be under the engine/outputs folder).
  • --js=<program.js>: name of the JavaScript program for analysis (default: js_program.js).
  • --import=<bool>: whether the constructed property graph should be imported to an active neo4j database (default: true).
  • --hybrid=bool: whether the hybrid mode is enabled (default: false). This implies that the tester wants to enrich the property graph by inputing files for any of the HTML snapshot, fired events, HTTP requests and cookies, as collected by the JAW crawler.
  • --reqs=<requests.out>: for hybrid mode only, name of the file containing the sequence of obsevered network requests, pass the string false to exclude (default: request_logs_short.out).
  • --evts=<events.out>: for hybrid mode only, name of the file containing the sequence of fired events, pass the string false to exclude (default: events.out).
  • --cookies=<cookies.pkl>: for hybrid mode only, name of the file containing the cookies, pass the string false to exclude (default: cookies.pkl).
  • --html=<html_snapshot.html>: for hybrid mode only, name of the file containing the DOM tree snapshot, pass the string false to exclude (default: html_rendered.html).

For more information, you can use the help CLI provided with the graph construction API:

$ python3 -m engine.api -h

Security Analysis

The constructed HPG can then be queried using Cypher or the NeoModel ORM.

Running Custom Graph traversals

You should place and run your queries in analyses/<ANALYSIS_NAME>.

Option 1: Using the NeoModel ORM (Deprecated)

You can use the NeoModel ORM to query the HPG. To write a query:

  • (1) Check out the HPG data model and syntax tree.
  • (2) Check out the ORM model for HPGs
  • (3) See the example query file provided; example_query_orm.py in the analyses/example folder.
$ python3 -m analyses.example.example_query_orm  

For more information, please see here.

Option 2: Using Cypher Queries

You can use Cypher to write custom queries. For this:

  • (1) Check out the HPG data model and syntax tree.
  • (2) See the example query file provided; example_query_cypher.py in the analyses/example folder.
$ python3 -m analyses.example.example_query_cypher

For more information, please see here.

Vulnerability Detection

This section describes how to configure and use JAW for vulnerability detection, and how to interpret the output. JAW contains, among others, self-contained queries for detecting client-side CSRF and DOM Clobbering

Step 1. enable the analysis component for the vulnerability class in the input config.yaml file:

request_hijacking:
enabled: true
# [...]
#
domclobbering:
enabled: false
# [...]

cs_csrf:
enabled: false
# [...]

Step 2. Run an instance of the pipeline with:

$ python3 -m run_pipeline --conf=config.yaml

Hint. You can run multiple instances of the pipeline under different screens:

$ screen -dmS s1 bash -c 'python3 -m run_pipeline --conf=conf1.yaml; exec sh'
$ screen -dmS s2 bash -c 'python3 -m run_pipeline --conf=conf2.yaml; exec sh'
$ # [...]

To generate parallel configuration files automatically, you may use the generate_config.py script.

How to Interpret the Output of the Analysis?

The outputs will be stored in a file called sink.flows.out in the same folder as that of the input. For Client-side CSRF, for example, for each HTTP request detected, JAW outputs an entry marking the set of semantic types (a.k.a, semantic tags or labels) associated with the elements constructing the request (i.e., the program slices). For example, an HTTP request marked with the semantic type ['WIN.LOC'] is forgeable through the window.location injection point. However, a request marked with ['NON-REACH'] is not forgeable.

An example output entry is shown below:

[*] Tags: ['WIN.LOC']
[*] NodeId: {'TopExpression': '86', 'CallExpression': '87', 'Argument': '94'}
[*] Location: 29
[*] Function: ajax
[*] Template: ajaxloc + "/bearer1234/"
[*] Top Expression: $.ajax({ xhrFields: { withCredentials: "true" }, url: ajaxloc + "/bearer1234/" })

1:['WIN.LOC'] variable=ajaxloc
0 (loc:6)- var ajaxloc = window.location.href

This entry shows that on line 29, there is a $.ajax call expression, and this call expression triggers an ajax request with the url template value of ajaxloc + "/bearer1234/, where the parameter ajaxloc is a program slice reading its value at line 6 from window.location.href, thus forgeable through ['WIN.LOC'].

Test Web Application

In order to streamline the testing process for JAW and ensure that your setup is accurate, we provide a simple node.js web application which you can test JAW with.

First, install the dependencies via:

$ cd tests/test-webapp
$ npm install

Then, run the application in a new screen:

$ screen -dmS jawwebapp bash -c 'PORT=6789 npm run devstart; exec sh'

Detailed Documentation.

For more information, visit our wiki page here. Below is a table of contents for quick access.

The Web Crawler of JAW

Data Model of Hybrid Property Graphs (HPGs)

Graph Construction

Graph Traversals

Contribution and Code Of Conduct

Pull requests are always welcomed. This project is intended to be a safe, welcoming space, and contributors are expected to adhere to the contributor code of conduct.

Academic Publication

If you use the JAW for academic research, we encourage you to cite the following paper:

@inproceedings{JAW,
title = {JAW: Studying Client-side CSRF with Hybrid Property Graphs and Declarative Traversals},
author= {Soheil Khodayari and Giancarlo Pellegrino},
booktitle = {30th {USENIX} Security Symposium ({USENIX} Security 21)},
year = {2021},
address = {Vancouver, B.C.},
publisher = {{USENIX} Association},
}

Acknowledgements

JAW has come a long way and we want to give our contributors a well-deserved shoutout here!

@tmbrbr, @c01gide, @jndre, and Sepehr Mirzaei.



R2Frida - Radare2 And Frida Better Together

By: Zion3R


This is a self-contained plugin for radare2 that allows to instrument remote processes using frida.

The radare project brings a complete toolchain for reverse engineering, providing well maintained functionalities and extend its features with other programming languages and tools.

Frida is a dynamic instrumentation toolkit that makes it easy to inspect and manipulate running processes by injecting your own JavaScript, and optionally also communicate with your scripts.


Features

  • Run unmodified Frida scripts (Use the :. command)
  • Execute snippets in C, Javascript or TypeScript in any process
  • Can attach, spawn or launch in local or remote systems
  • List sections, symbols, exports, protocols, classes, methods
  • Search for values in memory inside the agent or from the host
  • Replace method implementations or create hooks with short commands
  • Load libraries and frameworks in the target process
  • Support Dalvik, Java, ObjC, Swift and C interfaces
  • Manipulate file descriptors and environment variables
  • Send signals to the process, continue, breakpoints
  • The r2frida io plugin is also a filesystem fs and debug backend
  • Automate r2 and frida using r2pipe
  • Read/Write process memory
  • Call functions, syscalls and raw code snippets
  • Connect to frida-server via usb or tcp/ip
  • Enumerate apps and processes
  • Trace registers, arguments of functions
  • Tested on x64, arm32 and arm64 for Linux, Windows, macOS, iOS and Android
  • Doesn't require frida to be installed in the host (no need for frida-tools)
  • Extend the r2frida commands with plugins that run in the agent
  • Change page permissions, patch code and data
  • Resolve symbols by name or address and import them as flags into r2
  • Run r2 commands in the host from the agent
  • Use r2 apis and run r2 commands inside the remote target process.
  • Native breakpoints using the :db api
  • Access remote filesystems using the r_fs api.

Installation

The recommended way to install r2frida is via r2pm:

$ r2pm -ci r2frida

Binary builds that don't require compilation will be soon supported in r2pm and r2env. Meanwhile feel free to download the last builds from the Releases page.

Compilation

Dependencies

  • radare2
  • pkg-config (not required on windows)
  • curl or wget
  • make, gcc
  • npm, nodejs (will be soon removed)

In GNU/Debian you will need to install the following packages:

$ sudo apt install -y make gcc libzip-dev nodejs npm curl pkg-config git

Instructions

$ git clone https://github.com/nowsecure/r2frida.git
$ cd r2frida
$ make
$ make user-install

Windows

  • Install meson and Visual Studio
  • Unzip the latest radare2 release zip in the r2frida root directory
  • Rename it to radare2 (instead of radare2-x.y.z)
  • To make the VS compiler available in PATH (preconfigure.bat)
  • Run configure.bat and then make.bat
  • Copy the b\r2frida.dll into r2 -H R2_USER_PLUGINS

Usage

For testing, use r2 frida://0, as attaching to the pid0 in frida is a special session that runs in local. Now you can run the :? command to get the list of commands available.

$ r2 'frida://?'
r2 frida://[action]/[link]/[device]/[target]
* action = list | apps | attach | spawn | launch
* link = local | usb | remote host:port
* device = '' | host:port | device-id
* target = pid | appname | process-name | program-in-path | abspath
Local:
* frida://? # show this help
* frida:// # list local processes
* frida://0 # attach to frida-helper (no spawn needed)
* frida:///usr/local/bin/rax2 # abspath to spawn
* frida://rax2 # same as above, considering local/bin is in PATH
* frida://spawn/$(program) # spawn a new process in the current system
* frida://attach/(target) # attach to target PID in current host
USB:
* frida://list/usb// # list processes in the first usb device
* frida://apps/usb// # list apps in the first usb device
* frida://attach/usb//12345 # attach to given pid in the first usb device
* frida://spawn/usb//appname # spawn an app in the first resolved usb device
* frida://launch/usb//appname # spawn+resume an app in the first usb device
Remote:
* frida://attach/remote/10.0.0.3:9999/558 # attach to pid 558 on tcp remote frida-server
Environment: (Use the `%` command to change the environment at runtime)
R2FRIDA_SAFE_IO=0|1 # Workaround a Frida bug on Android/thumb
R2FRIDA_DEBUG=0|1 # Used to debug argument parsing behaviour
R2FRIDA_COMPILER_DISABLE=0|1 # Disable the new frida typescript compiler (`:. foo.ts`)
R2FRIDA_AGENT_SCRIPT=[file] # path to file of the r2frida agent

Examples

$ r2 frida://0     # same as frida -p 0, connects to a local session

You can attach, spawn or launch to any program by name or pid, The following line will attach to the first process named rax2 (run rax2 - in another terminal to test this line)

$ r2 frida://rax2  # attach to the first process named `rax2`
$ r2 frida://1234 # attach to the given pid

Using the absolute path of a binary to spawn will spawn the process:

$ r2 frida:///bin/ls
[0x00000000]> :dc # continue the execution of the target program

Also works with arguments:

$ r2 frida://"/bin/ls -al"

For USB debugging iOS/Android apps use these actions. Note that spawn can be replaced with launch or attach, and the process name can be the bundleid or the PID.

$ r2 frida://spawn/usb/         # enumerate devices
$ r2 frida://spawn/usb// # enumerate apps in the first iOS device
$ r2 frida://spawn/usb//Weather # Run the weather app

Commands

These are the most frequent commands, so you must learn them and suffix it with ? to get subcommands help.

:i        # get information of the target (pid, name, home, arch, bits, ..)
.:i* # import the target process details into local r2
:? # show all the available commands
:dm # list maps. Use ':dm|head' and seek to the program base address
:iE # list the exports of the current binary (seek)
:dt fread # trace the 'fread' function
:dt-* # delete all traces

Plugins

r2frida plugins run in the agent side and are registered with the r2frida.pluginRegister API.

See the plugins/ directory for some more example plugin scripts.

[0x00000000]> cat example.js
r2frida.pluginRegister('test', function(name) {
if (name === 'test') {
return function(args) {
console.log('Hello Args From r2frida plugin', args);
return 'Things Happen';
}
}
});
[0x00000000]> :. example.js # load the plugin script

The :. command works like the r2's . command, but runs inside the agent.

:. a.js  # run script which registers a plugin
:. # list plugins
:.-test # unload a plugin by name
:.. a.js # eternalize script (keeps running after detach)

Termux

If you are willing to install and use r2frida natively on Android via Termux, there are some caveats with the library dependencies because of some symbol resolutions. The way to make this work is by extending the LD_LIBRARY_PATH environment to point to the system directory before the termux libdir.

$ LD_LIBRARY_PATH=/system/lib64:$LD_LIBRARY_PATH r2 frida://...

Troubleshooting

Ensure you are using a modern version of r2 (preferibly last release or git).

Run r2 -L | grep frida to verify if the plugin is loaded, if nothing is printed use the R2_DEBUG=1 environment variable to get some debugging messages to find out the reason.

If you have problems compiling r2frida you can use r2env or fetch the release builds from the GitHub releases page, bear in mind that only MAJOR.MINOR version must match, this is r2-5.7.6 can load any plugin compiled on any version between 5.7.0 and 5.7.8.

Design

 +---------+
| radare2 | The radare2 tool, on top of the rest
+---------+
:
+----------+
| io_frida | r2frida io plugin
+----------+
:
+---------+
| frida | Frida host APIs and logic to interact with target
+---------+
:
+-------+
| app | Target process instrumented by Frida with Javascript
+-------+

Credits

This plugin has been developed by pancake aka Sergi Alvarez (the author of radare2) for NowSecure.

I would like to thank Ole AndrΓ© for writing and maintaining Frida as well as being so kind to proactively fix bugs and discuss technical details on anything needed to make this union to work. Kudos



Route-Detect - Find Authentication (Authn) And Authorization (Authz) Security Bugs In Web Application Routes

By: Zion3R


Find authentication (authn) and authorization (authz) security bugs in web application routes:


Web application HTTP route authn and authz bugs are some of the most common security issues found today. These industry standard resources highlight the severity of the issue:

Supported web frameworks (route-detect IDs in parentheses):

  • Python: Django (django, django-rest-framework), Flask (flask), Sanic (sanic)
  • PHP: Laravel (laravel), Symfony (symfony), CakePHP (cakephp)
  • Ruby: Rails* (rails), Grape (grape)
  • Java: JAX-RS (jax-rs), Spring (spring)
  • Go: Gorilla (gorilla), Gin (gin), Chi (chi)
  • JavaScript/TypeScript: Express (express), React (react), Angular (angular)

*Rails support is limited. Please see this issue for more information.

Installing

Use pip to install route-detect:

$ python -m pip install --upgrade route-detect

You can check that route-detect is installed correctly with the following command:

$ echo 'print(1 == 1)' | semgrep --config $(routes which test-route-detect) -
Scanning 1 file.

Findings:

/tmp/stdin
routes.rules.test-route-detect
Found '1 == 1', your route-detect installation is working correctly

1Ò”† print(1 == 1)


Ran 1 rule on 1 file: 1 finding.

Using

route-detect provides the routes CLI command and uses semgrep to search for routes.

Use the which subcommand to point semgrep at the correct web application rules:

$ semgrep --config $(routes which django) path/to/django/code

Use the viz subcommand to visualize route information in your browser:

$ semgrep --json --config $(routes which django) --output routes.json path/to/django/code
$ routes viz --browser routes.json

If you're not sure which framework to look for, you can use the special all ID to check everything:

$ semgrep --json --config $(routes which all) --output routes.json path/to/code

If you have custom authn or authz logic, you can copy route-detect's rules:

$ cp $(routes which django) my-django.yml

Then you can modify the rule as necessary and run it like above:

$ semgrep --json --config my-django.yml --output routes.json path/to/django/code
$ routes viz --browser routes.json

Contributing

route-detect uses poetry for dependency and configuration management.

Before proceeding, install project dependencies with the following command:

$ poetry install --with dev

Linting

Lint all project files with the following command:

$ poetry run pre-commit run --all-files

Testing

Run Python tests with the following command:

$ poetry run pytest --cov

Run Semgrep rule tests with the following command:

$ poetry run semgrep --test --config routes/rules/ tests/test_rules/


Z9 - PowerShell Script Analyzer

By: Zion3R

Abstract

This tools detects the artifact of the PowerShell based malware from the eventlog of PowerShell logging.
Online Demo


Install

git clone https://github.com/Sh1n0g1/z9

How to use

usage: z9.py [-h] [--output OUTPUT] [-s] [--no-viewer] [--utf8] input

positional arguments:
input Input file path

options:
-h, --help show this help message and exit
--output OUTPUT, -o OUTPUT
Output file path
-s, --static Enable Static Analysis mode
--no-viewer Disable opening the JSON viewer in a web browser
--utf8 Read scriptfile in utf-8 (deprecated)

Analyze Event Logs (Recommended)

python z9.py <input file> -o <output json>
python z9.py <input file> -o <output json> --no-viewer
Arguments Meaning
input file XML file exported from eventlog
-o output json filename of z9 result
--no-viewer do not open the viewer

Example)

python z9.py util\log\mwpsop.xml -o sample1.json

Analyze PowerShell File Statically

  • This approach will only do the static analysis and may not provide a proper result especially when the sample is obfuscated.
python z9.py <input file> -o <output json> -s
python z9.py <input file> -o <output json> -s --utf8
python z9.py <input file> -o <output json> -s --no-viewer
Arguments Meaning
input file PowerShell file to be analyzed
-o output json filename of z9 result
-s perform static analysis
--utf8 specify when the input file is in UTF-8
--no-viewer do not open the viewer

Example)

python z9.py malware.ps1 -o sample1.json -s

How to prepare the XML file

Enable PowerShell Logging

  1. Right-click and merge this registry file:util/enable_powershell_logging.reg .
  2. Reboot the PC
  3. All powershell execution will be logged in eventlog

Export Eventlog to XML

  1. Execute this batch file:util/collect_psevent.bat .
  2. The XML files will be created under util/log directory.
  3. Both XML file can be parsed by this tool.

How to Delete the Existing Eventlog

Authors

hanataro-miz
si-tm
take32457
Bigdrea6
azaberrypi
Sh1n0g1



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