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https://github.com/ajinabraham/njsscan
njsscan is a semantic aware SAST tool that can find insecure code patterns in your Node.js applications.
https://github.com/ajinabraham/njsscan
appsec codereview codescanner devsecops expressjs jslint lint linter njsscan nodejs nodejsscan nodesecurity python sast security security-tools semantic static-analysis static-analyzer staticanalysis
Last synced: 22 days ago
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njsscan is a semantic aware SAST tool that can find insecure code patterns in your Node.js applications.
- Host: GitHub
- URL: https://github.com/ajinabraham/njsscan
- Owner: ajinabraham
- License: lgpl-3.0
- Created: 2020-04-15T03:21:00.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2024-04-11T08:02:03.000Z (7 months ago)
- Last Synced: 2024-05-02T04:38:49.229Z (6 months ago)
- Topics: appsec, codereview, codescanner, devsecops, expressjs, jslint, lint, linter, njsscan, nodejs, nodejsscan, nodesecurity, python, sast, security, security-tools, semantic, static-analysis, static-analyzer, staticanalysis
- Language: JavaScript
- Homepage: https://opensecurity.in
- Size: 396 KB
- Stars: 344
- Watchers: 13
- Forks: 75
- Open Issues: 6
-
Metadata Files:
- Readme: README.md
- Funding: .github/FUNDING.yml
- License: LICENSE
- Security: SECURITY.md
Awesome Lists containing this project
- awesome-hacking-lists - ajinabraham/njsscan - njsscan is a semantic aware SAST tool that can find insecure code patterns in your Node.js applications. (JavaScript)
- awesome-software-supply-chain-security - njsscan -  - njsscan is a semantic aware SAST tool that can find insecure code patterns in your Node.js applications. (Static Application Security Testing)
README
# njsscan
**njsscan** is a static application testing (SAST) tool that can find insecure code patterns in your node.js applications using simple pattern matcher from [libsast](https://github.com/ajinabraham/libsast) and syntax-aware semantic code pattern search tool [semgrep](https://github.com/returntocorp/semgrep).
Made with  in India [](https://twitter.com/intent/tweet/?text=njsscan%20is%20a%20semantic%20aware%20SAST%20tool%20that%20can%20find%20insecure%20code%20patterns%20in%20your%20Node.js%20applications%20by%20%40ajinabraham%20%40OpenSecurity_IN&url=https://github.com/ajinabraham/njsscan)
[](https://badge.fury.io/py/njsscan)
[](https://github.com/ajinabraham/njsscan)
[](https://www.gnu.org/licenses/lgpl-3.0.en.html)
[](https://www.python.org/downloads/)
[](https://github.com/ajinabraham/njsscan/actions?query=workflow%3ABuild)
### Support njsscan
* **Donate via Paypal:** [](https://paypal.me/ajinabraham)
* **Sponsor the Project:** [](https://github.com/sponsors/ajinabraham)
### e-Learning Courses & Certifications
[](https://opsecx.com/index.php/product/node-js-security-pentesting-and-exploitation/?uid=github) [OpSecX Node.js Security: Pentesting and Exploitation - NJS](https://opsecx.com/index.php/product/node-js-security-pentesting-and-exploitation/?uid=github)
## Installation
`pip install njsscan`
Requires Python 3.7+ and supports only Mac and Linux
## Command Line Options
```bash
$ njsscan
usage: njsscan [-h] [--json] [--sarif] [--sonarqube] [--html] [-o OUTPUT] [-c CONFIG] [--missing-controls] [-w] [-v] [path ...]
positional arguments:
path Path can be file(s) or directories with source code
optional arguments:
-h, --help show this help message and exit
--json set output format as JSON
--sarif set output format as SARIF 2.1.0
--sonarqube set output format compatible with SonarQube
--html set output format as HTML
-o OUTPUT, --output OUTPUT
output filename to save the result
-c CONFIG, --config CONFIG
Location to .njsscan config file
--missing-controls enable missing security controls check
-w, --exit-warning non zero exit code on warning
-v, --version show njsscan version
```
## Example Usage
```bash
$ njsscan test.js
- Pattern Match ████████████████████████████████████████████████████████████ 1
- Semantic Grep ███████████████████████████ 160
njsscan: v0.1.9 | Ajin Abraham | opensecurity.in
╒═════════════╤═══════════════════════════════════════════════════════════════════════════════════════════════╕
│ RULE ID │ express_xss │
├─────────────┼───────────────────────────────────────────────────────────────────────────────────────────────┤
│ OWASP │ A1: Injection │
├─────────────┼───────────────────────────────────────────────────────────────────────────────────────────────┤
│ CWE │ CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') │
├─────────────┼───────────────────────────────────────────────────────────────────────────────────────────────┤
│ DESCRIPTION │ Untrusted User Input in Response will result in Reflected Cross Site Scripting Vulnerability. │
├─────────────┼───────────────────────────────────────────────────────────────────────────────────────────────┤
│ SEVERITY │ ERROR │
├─────────────┼───────────────────────────────────────────────────────────────────────────────────────────────┤
│ FILES │ ╒════════════════╤═══════════════════════════════════════════════╕ │
│ │ │ File │ test.js │ │
│ │ ├────────────────┼───────────────────────────────────────────────┤ │
│ │ │ Match Position │ 5 - 46 │ │
│ │ ├────────────────┼───────────────────────────────────────────────┤ │
│ │ │ Line Number(s) │ 7: 8 │ │
│ │ ├────────────────┼───────────────────────────────────────────────┤ │
│ │ │ Match String │ const { name } = req.query; │ │
│ │ │ │ res.send('
Hello :' + name + "
") │ │
│ │ ╘════════════════╧═══════════════════════════════════════════════╛ │
╘═════════════╧═══════════════════════════════════════════════════════════════════════════════════════════════╛
```
## nodejsscan SAST
**nodejsscan**, built on top of **njsscan** provides a full fledged vulnerability management user interface along with other nifty integrations.
See [nodejsscan](https://github.com/ajinabraham/nodejsscan)
## Python API
```python
>>> from njsscan.njsscan import NJSScan
>>> node_source = '/node_source/true_positives/sqli_node.js'
>>> scanner = NJSScan([node_source], json=True, check_controls=False)
>>> scanner.scan()
{
'templates': {},
'nodejs': {
'node_sqli_injection': {
'files': [{
'file_path': '/node_source/true_positives/sqli_node.js',
'match_position': (1, 24),
'match_lines': (4, 11),
'match_string': 'var employeeId = req.foo;\n\nvar sql = "SELECT * FROM trn_employee WHERE employee_id = " + employeeId;\n\n\n\nconnection.query(sql, function (error, results, fields) {\n\n if (error) {\n\n throw error;\n\n }\n\n console.log(results);'
}],
'metadata': {
'owasp': 'A1: Injection',
'cwe': "CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')",
'description': 'Untrusted input concatinated with raw SQL query can result in SQL Injection.',
'severity': 'ERROR'
}
}
},
'errors': []
}
```
## Configure njsscan
A `.njsscan` file in the root of the source code directory allows you to configure njsscan. You can also use a custom `.njsscan` file using `--config` argument.
```yaml
---
- nodejs-extensions:
- .js
template-extensions:
- .new
- .hbs
- ''
ignore-filenames:
- skip.js
ignore-paths:
- __MACOSX
- skip_dir
- node_modules
ignore-extensions:
- .jsx
ignore-rules:
- regex_injection_dos
- pug_jade_template
severity-filter:
- WARNING
- ERROR
```
## Suppress Findings
You can suppress findings from javascript source files by adding the comment `// njsscan-ignore: rule_id1, rule_id2` to the line that trigger the findings.
Example:
```javascript
app.get('/some/redirect', function (req, res) {
var target = req.param("target");
res.redirect(target); // njsscan-ignore: express_open_redirect
});
```
## CI/CD Integrations
You can enable njsscan in your CI/CD or DevSecOps pipelines.
#### Github Action
Add the following to the file `.github/workflows/njsscan.yml`.
```yaml
name: njsscan
on:
push:
branches: [ master, main ]
pull_request:
branches: [ master, main ]
jobs:
njsscan:
runs-on: ubuntu-latest
name: njsscan check
steps:
- name: Checkout the code
uses: actions/checkout@v2
- name: nodejsscan scan
id: njsscan
uses: ajinabraham/njsscan-action@master
with:
args: '.'
```
Example: [dvna with njsscan github action](https://github.com/ajinabraham/dvna/actions?query=workflow%3Anjsscan)
#### Github Code Scanning Integration
Add the following to the file `.github/workflows/njsscan_sarif.yml`.
```yaml
name: njsscan sarif
on:
push:
branches: [ master, main ]
pull_request:
branches: [ master, main ]
jobs:
njsscan:
runs-on: ubuntu-latest
name: njsscan code scanning
steps:
- name: Checkout the code
uses: actions/checkout@v2
- name: nodejsscan scan
id: njsscan
uses: ajinabraham/njsscan-action@master
with:
args: '. --sarif --output results.sarif || true'
- name: Upload njsscan report
uses: github/codeql-action/upload-sarif@v1
with:
sarif_file: results.sarif
```
#### Gitlab CI/CD
Add the following to the file `.gitlab-ci.yml`.
```yaml
stages:
- test
njsscan:
image: python
before_script:
- pip3 install --upgrade njsscan
script:
- njsscan .
```
Example: [dvna with njsscan gitlab](https://gitlab.com/ajinabraham/dvna/-/jobs/602110439)
#### Travis CI
Add the following to the file `.travis.yml`.
```yaml
language: python
install:
- pip3 install --upgrade njsscan
script:
- njsscan .
```
#### Circle CI
Add the following to the file `.circleci/config.yaml`
```yaml
version: 2.1
jobs:
njsscan:
docker:
- image: cimg/python:3.9.6
steps:
- checkout
- run:
name: Install njsscan
command: pip install --upgrade njsscan
- run:
name: njsscan check
command: njsscan .
```
## Docker
### Prebuilt image from [DockerHub](https://hub.docker.com/r/opensecurity/njsscan)
```bash
docker pull opensecurity/njsscan
docker run -v /path-to-source-dir:/src opensecurity/njsscan /src
```
### Build Locally
```
docker build -t njsscan .
docker run -v /path-to-source-dir:/src njsscan /src
```