Oralyzer is an open-source cybersecurity tool written in Python designed to detect open redirect vulnerabilities in web applications. Its primary function is to analyze target URL parameters, inject custom payloads, and determine whether a website permits unauthorized external redirects. Running Oralyzer inside the Termux terminal environment allows security researchers to perform lightweight web application security testing directly from an Android device without needing a full desktop Linux installation.
Open redirect vulnerabilities (categorized under OWASP Top 10 and CWE-601) occur when a web application accepts untrusted input that causes the application to redirect the user to a malicious external site. Attackers frequently exploit these weaknesses in phishing campaigns to make dangerous links appear trustworthy. Ethical hackers, penetration testers, and bug bounty hunters use Oralyzer to locate and fix these flaws before malicious actors exploit them. Executing this tool inside Termux provides a portable, power-efficient, and accessible workflow for mobile security auditing.
This technical guide provides a clear walkthrough for setting up and operating the tool. You will learn how to update your Termux environment, install required Python dependencies, clone the official Oralyzer repository, execute basic and advanced security scans, and resolve common runtime errors.
Quick Info Summary
| Property | Details |
|---|---|
| Tool Name | Oralyzer |
| Primary Category | Web Application Vulnerability Scanner |
| Vulnerability Target | Open Redirect (CWE-601) |
| Programming Language | Python 3 |
| Environment Requirements | Termux (Android OS) or Linux Terminal |
| Root Access Required? | No (Runs in user space) |
| License | Open Source (MIT / GPL) |
What is Oralyzer and Open Redirect?
Oralyzer is an automated reconnaissance tool specifically crafted to discover unvalidated redirect vulnerabilities in URL parameters. Instead of manually testing hundreds of URL parameters, security analysts can feed target endpoints into Oralyzer to automate payload injection and response analysis.
An Open Redirect vulnerability happens when a web server receives a user-submitted parameter specifying a URL target and redirects the browser to that URL without proper validation. For example, consider the following target URL:
https://example.com/login?next=https://trusted-site.comIf an attacker modifies the parameter to next=https://malicious-phishing-site.com, and the server redirects the user without checking the destination host, an open redirect exists. Users trust the initial domain (example.com) and are tricked into visiting a fraudulent login page. Oralyzer tests these parameter locations automatically by substituting test values and checking HTTP status codes (such as 301, 302, 307, or 308) and response headers.
Key Features of Oralyzer
- Automated Parameter Fuzzing: Automatically identifies potential redirect parameters within target query strings.
- Custom Payload Support: Allows penetration testers to supply custom lists of redirect payloads to bypass weak filter mechanisms.
- List Processing Capabilities: Accepts input files containing multiple target URLs to execute bulk domain scanning.
- Color-Coded Terminal Output: Provides readable console output directly within Termux for immediate analysis.
- Lightweight Footprint: Consumes minimal CPU and RAM, making it suitable for low-spec mobile hardware.
- No Root Privileges Required: Executes fully within standard user space in Termux.
Prerequisites and System Requirements
To run Oralyzer inside Termux successfully, your Android device must satisfy the following minimum requirements:
- Android Version: Android 7.0 (API level 24) or higher.
- Termux Version: F-Droid release (Do not use the obsolete Google Play Store release).
- Free Storage Space: At least 250 MB of available storage.
- Network Connection: Active Wi-Fi or mobile data connection to download dependencies and scan target systems.
- Required Software Packages:
git,python,pip, andlibffi.
Step-by-Step Installation Guide in Termux
Follow these step-by-step commands to install Oralyzer inside your Termux terminal environment.
Step 1: Update and Upgrade Termux Packages
First, update the repository index and upgrade installed packages to ensure software compatibility and avoid missing library errors.
pkg update && pkg upgrade -yStep 2: Install Git and Python Packages
Install git to clone repository files and python to execute script utilities.
pkg install git python -yStep 3: Clone the Oralyzer Repository
Use git to download the official Oralyzer repository source code from GitHub to your local device directory.
git clone https://github.com/r0260/Oralyzer.gitStep 4: Navigate to the Application Directory
Change your working terminal directory to the newly downloaded repository folder.
cd OralyzerStep 5: Install Python Dependencies
Use pip to install the required Python libraries specified in the project manifest file.
pip install -r requirements.txtStep 6: Verify Installation
Verify that the script executes properly by invoking the help menu.
python oralyzer.py -hUsage and Command Syntax
The standard command syntax for Oralyzer requires specifying the target parameter along with scanning flags.
python oralyzer.py [FLAGS] [TARGET]When providing a single target URL, ensure that the query parameter (such as ?url=, ?redirect=, or ?next=) is explicitly included inside quotation marks to prevent command-line parsing errors in Termux.
Practical Scanning Examples
Example 1: Basic Single URL Scan
To scan a single target URL containing a redirect parameter, use the -u flag followed by the full target web address.
python oralyzer.py -u "https://example.com/login?redirect=https://google.com"Terminal Output Explanation: The tool sends HTTP GET/POST requests containing built-in payloads to the specified endpoint. If the response header contains a HTTP 302 Found location pointing to the injected host, Oralyzer flags the parameter as vulnerable.
Example 2: Bulk Scanning from a File List
When performing security audits on multiple domains, list all target URLs inside a plain text file (e.g., targets.txt) with one URL per line, then pass the file using the -l flag.
Create a target list file using nano or echo:
echo "https://example.com/nav?to=test" > targets.txt
echo "https://testsite.org/out?link=test" >> targets.txtExecute the scan against the target file:
python oralyzer.py -l targets.txtExample 3: Using Custom Payload Lists
Standard security filters often block simple domain redirects. To test payload bypass strategies (such as double-slashes //evil.com, URL encoding, or parameter pollution), supply a custom payload file using the payload option.
python oralyzer.py -u "https://example.com/checkout?return=test" -p custom_payloads.txtExample 4: Saving Scan Results to an Output File
To document security findings for client reports or bug bounty disclosures, redirect the scan findings output into a log file.
python oralyzer.py -u "https://example.com/portal?next=test" | tee output_report.txtImportant Commands and Options Reference
| Command / Flag | Description | Usage Example |
|---|---|---|
-u, --url |
Specifies a single target URL for analysis. | python oralyzer.py -u "URL" |
-l, --list |
Specifies a path to a file containing target URLs. | python oralyzer.py -l file.txt |
-p, --payload |
Loads a custom list of open redirect payloads. | python oralyzer.py -u "URL" -p payloads.txt |
-h, --help |
Displays the help interface and option descriptions. | python oralyzer.py -h |
Troubleshooting Common Errors
1. ModuleNotFoundError: No module named 'requests'
Cause: Python dependencies were not installed globally or inside the active virtual environment.
Solution: Re-run the installation command directly using pip:
pip install requests colorama urllib32. Command 'git' or 'python' Not Found
Cause: Essential binary packages are missing from the default Termux environment path.
Solution: Install the missing binaries using the Termux package manager:
pkg install git python -y3. Permission Denied Errors
Cause: The execution permissions on the main script file are missing.
Solution: Grant execution rights to the Python file using chmod:
chmod +x oralyzer.py4. SSL Certificate / Verification Failed
Cause: Outdated openSSL libraries in Termux or target endpoints enforcing strict custom certificates.
Solution: Ensure your Termux certificates are up to date by upgrading system packages:
pkg update && pkg install ca-certificates -yHow to Uninstall Oralyzer
If you need to remove Oralyzer from your Termux setup to free up storage space, delete the project directory and clean up temporary Python files.
cd $HOME
rm -rf Oralyzer
pip cache purgeConclusion
Oralyzer provides security auditors, penetration testers, and bug bounty researchers with an efficient tool for finding open redirect flaws directly from Android devices using Termux. Combining Termux's mobile capabilities with Oralyzer's automated parameter analysis allows for rapid security assessments without requiring desktop computing environments.
Ethical Notice: Always obtain written authorization from web application owners before executing security scanning tools. Unauthorized testing against target systems is illegal and violates computer misuse laws worldwide. Use this setup strictly for educational purposes and authorized security research.
Frequently Asked Questions (FAQ)
Is Oralyzer legal to use?
Yes, Oralyzer is a legal open-source security tool designed for defensive security testing. However, scanning websites without explicit written permission from the system owner is illegal. Always perform tests within authorized bug bounty program scopes or on personal test environments.
Does running Oralyzer in Termux require root access?
No. Oralyzer operates entirely in user space within Termux. It uses standard HTTP socket connections that do not require root permissions on Android.
Why is my single target URL scan failing?
Ensure that your target URL includes a query parameter (for example, ?dest= or ?redirect=) and that the entire URL string is enclosed inside double quotation marks so Termux parses parameter symbols like & correctly.
Can I run Oralyzer on non-Android devices?
Yes. Oralyzer runs on any Unix-like operating system supporting Python 3, including Kali Linux, Ubuntu, Debian, macOS, and Arch Linux.
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