authentication
Authentication security testing - auth bypass, JWT attacks, OAuth flaws, password attacks, 2FA bypass, CAPTCHA bypass, and bot detection evasion.
- Installs
- 198
- Last 24h
- —
- Trending rank
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- Security
- Not audited
Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/transilienceai/communitytools --skill authentication- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads authentication automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Authentication
Test authentication mechanisms including login security, token handling, 2FA, CAPTCHA, and bot detection.
Techniques
| Type | Key Vectors |
|---|---|
| Auth Bypass | Default credentials, logic flaws, response manipulation |
| ADFS/SAML | Golden SAML, token signing cert theft, assertion manipulation, SAML wrapping |
| JWT | Algorithm confusion, key injection, claim tampering, token forging |
| OAuth | Redirect manipulation, CSRF, token leakage, scope abuse |
| Password | Brute force, credential stuffing, password policy bypass |
| 2FA Bypass | Response manipulation, direct endpoint access, code reuse, race conditions |
| CAPTCHA Bypass | Missing server validation, token reuse, OCR, parameter manipulation |
| Bot Detection | Behavioral biometrics simulation, fingerprint randomization, stealth mode |
Tools
PasswordGenerator (tools/password_generator.py):
from tools.password_generator import generate_password
password = generate_password(hint_text="8-16 chars, uppercase, numbers")
CredentialManager (tools/credential_manager.py):
from tools.credential_manager import CredentialManager
mgr = CredentialManager()
mgr.store_credential(target="example.com", username="test", password="pass")
Workflow
- Analyze auth implementation (forms, tokens, 2FA, CAPTCHA)
- Test bypass vectors per technique type
- Use Playwright MCP with human-like behavior (typing 80-200ms, random pauses)
- Capture evidence (screenshots, network logs, tokens)
- Document findings with PoC scripts
Reference
reference/authentication*.md- Auth bypass techniques, payloads, and resourcesreference/jwt*.md- JWT attack techniques and cheat sheetsreference/oauth*.md- OAuth vulnerability testingreference/scenarios/password-attacks/*.md- Password attack vectors (spray, stuffing, cracking, PtH)reference/adfs-exploitation.md- ADFS, Golden SAML, federation attacksreference/scenarios/2fa/*.md- 2FA bypass methodsreference/CAPTCHA_BYPASS.md- 11 CAPTCHA bypass techniquesreference/BOT_DETECTION.md- Bot detection evasion strategiesreference/PASSWORD_CREDENTIAL_MANAGEMENT.md- Tool usage guide
FAQ
What does the authentication skill do?
Authentication security testing - auth bypass, JWT attacks, OAuth flaws, password attacks, 2FA bypass, CAPTCHA bypass, and bot detection evasion.
How do I install authentication?
Run npx skills add https://github.com/transilienceai/communitytools --skill authentication in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/authentication/ (personal) or .claude/skills/authentication/ (project).
Which AI agents can use authentication?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is authentication safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains authentication?
It is published by transilienceai in transilienceai/communitytools. It has 198 recorded installs.
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