# performing-ssl-tls-security-assessment

> Assess SSL/TLS server configurations using the sslyze Python library to evaluate cipher suites, certificate chains, protocol versions, HSTS headers, and known vulnerabilities like Heartbleed and ROBOT.

- Skill: `mukul975/performing-ssl-tls-security-assessment` (Agent Skill, multi-file: 4 files)
- Install (CLI): `npx skillmds add mukul975/performing-ssl-tls-security-assessment`
- Raw SKILL.md: https://api.skillmd.com/api/skills/mukul975/performing-ssl-tls-security-assessment/raw
- Safety review: CAUTION (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Security, Vulnerability Scanning
- Tags: Certificate Validation, Cipher Suites, Heartbleed, Hsts, Security Assessment, Ssl, Sslyze, Tls
- License: Apache-2.0
- Author: mukul975 (https://skillmd.com/u/mukul975)
- Updated: 2026-07-06
- Page: https://skillmd.com/skills/mukul975/performing-ssl-tls-security-assessment

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# Performing SSL/TLS Security Assessment

## Overview

Assess SSL/TLS server configurations using sslyze, a fast Python-based scanning library. This skill covers evaluating supported protocol versions (SSLv2/3, TLS 1.0-1.3), cipher suite strength, certificate chain validation, HSTS enforcement, OCSP stapling, and scanning for known vulnerabilities including Heartbleed, ROBOT, and session renegotiation weaknesses.


## When to Use

- When conducting security assessments that involve performing ssl tls security assessment
- When following incident response procedures for related security events
- When performing scheduled security testing or auditing activities
- When validating security controls through hands-on testing

## Prerequisites

- Python 3.9+ with `sslyze` library (pip install sslyze)
- Network access to target HTTPS servers on port 443
- Understanding of TLS protocol versions and cipher suite classifications

## Steps

### Step 1: Configure Server Scan
Create ServerScanRequest with ServerNetworkLocation specifying target hostname and port.

### Step 2: Execute TLS Scan
Use sslyze Scanner to queue and execute scans for all TLS check commands concurrently.

### Step 3: Analyze Results
Evaluate accepted cipher suites, certificate validity, protocol versions, and vulnerability scan results.

### Step 4: Generate Security Report
Produce a JSON report with compliance findings and remediation recommendations.

## Expected Output

JSON report with supported protocols, accepted cipher suites, certificate details, vulnerability results (Heartbleed, ROBOT), and HSTS status.