SSLyze

SSLyze

SSLyze is an open source Python tool used to analyze the configuration of SSL/TLS servers to find misconfigurations and vulnerabilities. It can perform scans to validate certificate properties, check for insecure cipher suites, check for vulnerabilities like Heartbleed, and more.
Security & Privacy Vulnerability Scanning
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ssl tls security vulnerability-scanning
SSLyze alternatives ➤

SSLyze: Open Source SSL/TLS Server Configuration Analysis Tool

Analyze the configuration of SSL/TLS servers to find misconfigurations and vulnerabilities with this open source Python tool, validating certificate properties, checking insecure cipher suites, and detecting Heartbleed vulnerabilities.

What is SSLyze?

SSLyze is an open source Python application used for analyzing and debugging SSL/TLS server configurations and certificates. It is designed to provide clear visibility into SSL/TLS services and can identify misconfigurations, weak ciphers, certificate issues, and vulnerability to attacks.

Some key features of SSLyze include:

  • Testing SSL/TLS server configurations for information leakage, insecure renegotiation, vulnerability to attacks like Heartbleed, FREAK, Logjam, and more
  • Scanning for weak cipher suites or protocols that may compromise security
  • Validating certificate properties - expiration dates, chains of trust, keys and algorithms
  • Checking for certificate issues such as mismatches, self-signed certificates, etc.
  • Support for testing OpenSSL servers as well as Python SSL and Python TLS
  • Command line usage as well as a JSON API for automation

SSLyze aims to act as a reconnaissance tool for SSL/TLS services, providing visibility into risks and misconfigurations. Its detailed yet easy to interpret output allows users, system administrators and security professionals to quickly validate the security posture of SSL/TLS servers.

SSLyze Features

Features

  1. Scans SSL/TLS servers to find misconfigurations
  2. Validates certificate properties like validity, trust paths, etc
  3. Checks for insecure cipher suites
  4. Checks for vulnerabilities like Heartbleed, POODLE, etc
  5. Supports StartTLS handshakes for protocols like SMTP, POP3, IMAP, FTP, etc
  6. Command-line interface and Python API available

Pricing

  • Open Source

Pros

Open source and free to use

Easy to install and use

Provides comprehensive SSL/TLS scanning and testing

Can be integrated into automation workflows via API

Actively maintained and updated

Cons

Limited reporting compared to commercial products

Requires some knowledge of SSL/TLS configuration

Only scans, does not provide remediation advice

Official Links

Official Website
https://github.com/nabla-c0d3/sslyze

The Best SSLyze Alternatives

Top Security & Privacy and Vulnerability Scanning and other similar apps like SSLyze

Here are some alternatives to SSLyze:

Mozilla Observatory icon
Mozilla Observatory
Qualys SSL Server Test icon
Qualys SSL Server Test
Hardenize icon
Hardenize
SSL/TLS Security Test by ImmuniWeb icon
SSL/TLS Security Test by ImmuniWeb
Suggest an alternative ❐

Mozilla Observatory icon

Mozilla Observatory

Mozilla Observatory is a free online tool by Mozilla that analyzes the security of websites and web applications. It scans for common vulnerabilities and misconfigurations and provides a letter grade score (A+ through F) to indicate the overall security level.Some things Mozilla Observatory checks for include:Outdated server software with known...
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Qualys SSL Server Test

Qualys SSL Server Test is a free online service offered by Qualys, Inc. that analyzes the configuration of any SSL web server on the public Internet. It allows users to test SSL/TLS settings such as supported protocol versions, cipher suites, certificate and certificate chains, key lengths, hash functions and signature...
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Hardenize

Hardenize is a cloud-based security and compliance platform designed to help organizations manage their cyber risk and strengthen their security posture. Some key features and capabilities of Hardenize include:Asset Discovery & Management - Automatically discover assets on your network and maintain an up-to-date inventory of all hardware and software.Vulnerability Scanning...
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SSL/TLS Security Test by ImmuniWeb

SSL/TLS Security Test by ImmuniWeb is a free online scanning tool that analyzes the SSL/TLS configuration of websites to identify issues that could impact security. It is offered by High-Tech Bridge, the company behind the ImmuniWeb application security platform.When you enter a domain name, the SSL/TLS test performs a deep...
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