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Performing ssl tls security assessment

Skill Mikaru0Mystic/sectinel/arsenal/Anthropic-Cybersecurity-Skills/skills/performing-ssl-tls-security-assessment

Open-source security arsenal for AI coding agents: 784 cybersecurity skills, scanner integrations, and a security MCP for Claude Code, Cursor, opencode, Gemini CLI, Cline, and any agentskills.io agent. Mapped to OWASP, MITRE ATT&CK, NIST CSF, D3FEND, ATLAS.

Install
npx -y skills add Mikaru0Mystic/sectinel --skill performing-ssl-tls-security-assessment

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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.

The file declares its own license as Apache-2.0. That is the author’s claim about this one file, and it is not the same thing as the license GitHub reports for the repository, which is listed with the other numbers below.

SKILL.md

2.1 KB, 318 tokens by cl100k_base, as published. Nobody here has run it

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.

What ships with it: 3 files

20.6 KB alongside SKILL.md, 1 of them executable

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