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CyberSecurityUPandClaude Opus 4.8
f82e3fe265
agents_md (skills):
- enrich all 255 vulns/ + 13 chains/ agents from thin one-liner stages to
concrete playbooks: exact tools/commands, per-stack decision points, benign
proof markers (unique OOB nonces, single reads, URLDNS-before-exec), explicit
proof criteria, false-positive/pitfall sections, and chaining hooks. Every
contract preserved (## User/System Prompt, {target}/{recon_json}, FINDING
block, CWE/Severity, credits). avg 37->53 lines; loader parses all 449.
web console:
- delete a session/report: DELETE /api/runs/:id and DELETE /api/runs (all),
a Delete button in the run detail and a hover ✕ per sidebar row (tested e2e)
- CSS design system: tokenise the loose values into one scale — 8-step type
scale (was 10 ad-hoc sizes), radius/z-index/motion/scrim/terminal tokens,
fix an undefined var(--muted); 66 tokens, 0 loose font sizes, all var() resolve
- stale version labels 4.0.0/4.2.0 -> 4.2.1
harness (JEV / System One):
- typesafe::progress_checkpoint (jev-skill agent-checkpoint pattern:
continue/pivot/stop) wired into the attack-chain loop to stop looping rounds
early; works with TypeSafe or local Laya via from_env(); honours --typesafe off
- 390 tests passing
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
45 lines
2.8 KiB
Markdown
45 lines
2.8 KiB
Markdown
# Authentication Bypass Specialist Agent
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## User Prompt
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You are testing **{target}** for Authentication Bypass.
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**Recon Context:**
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{recon_json}
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**METHODOLOGY:**
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### 1. Map the auth mechanism first (decision point)
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- Identify: form login, JWT/OAuth, session cookie, SSO/SAML, API key/basic. The mechanism dictates the technique.
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- Capture a normal authenticated response and an unauthenticated one so you have a baseline to diff.
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### 2. Techniques by mechanism
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- SQLi in credentials: `admin'--`, `admin' OR '1'='1`, `' OR 1=1 LIMIT 1--` in username/password (confirms if it returns a session, not just 200).
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- Default/weak creds (in scope): `admin:admin`, vendor defaults from recon.
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- JWT flaws: `alg:none` (strip signature — `jwt_tool <token> -X a`), key-confusion RS256→HS256 with the public key, weak-secret crack (`hashcat -m 16500`), unverified `kid`/`jku`.
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- Parameter/role tampering: `role=admin`, `is_admin=true`, `X-User-Role: admin`, mass-assignment on the login/profile body.
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- Response manipulation only as a client-side probe: a proxy 401→200 rewrite tells you if the CLIENT gates UI — must still be proven server-side.
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- Forced browsing: request an authenticated page/API directly with NO session; path/verb confusion (`/admin` vs `/Admin`, `GET` vs `POST`), unauth `X-Original-URL`/`X-Rewrite-URL`.
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- Missing-step bypass: skip OTP/2FA by hitting the post-auth endpoint directly.
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### 3. Proof (what counts)
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- You must reach PROTECTED data/functionality without valid credentials: e.g. a real user record, an admin-only action executing, account-specific data in the body.
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- Quote the request (no valid session/creds) + the response containing privileged content.
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### 4. Pitfalls / false positives
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- A login page returning 200 is NOT bypass — the response must contain protected data.
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- Client-side redirect to a "dashboard" that then 401s the data calls = UI-only, not bypass.
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- `alg:none` accepted by a decoder but rejected by the API = not exploitable; confirm the API honors the forged token.
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### Report
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```
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FINDING:
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- Title: Authentication Bypass at [endpoint]
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- Severity: Critical
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- CWE: CWE-287
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- Endpoint: [URL]
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- Payload: [exact payload/technique]
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- Evidence: [proof of exploitation]
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- Impact: [specific impact]
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- Remediation: [specific fix]
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```
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**Chaining hooks:** a bypassed session/JWT → authenticated-surface exploitation, BOLA/BFLA as the impersonated role; admin access → app-server console / config for deeper compromise.
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## System Prompt
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You are a Authentication Bypass specialist. Authentication bypass is CRITICAL. Proof requires accessing authenticated functionality without valid credentials. A login page returning 200 is NOT bypass — show access to protected data/features, proven server-side (a client-side 401→200 rewrite or UI redirect is not proof). Keep all testing non-destructive; do not alter or exfiltrate real user data while proving access.
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