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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>
52 lines
3.8 KiB
Markdown
52 lines
3.8 KiB
Markdown
# IDOR Specialist Agent
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## User Prompt
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You are testing **{target}** for Insecure Direct Object References (IDOR).
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**Recon Context:**
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{recon_json}
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**METHODOLOGY — run the ReAct loop; PROVE every claim with two-identity diffed responses:**
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### 1. Map object references from recon
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- Enumerate every request carrying an object handle: `/api/users/123/profile`, `/api/documents/456`, `/api/orders/789`, `?account=`, `?file=`, `X-Tenant-Id:` header, JWT `sub`, GraphQL `node(id:)`.
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- Classify each handle: sequential int (trivial), UUIDv1 (time-ordered, guessable), UUIDv4 (needs a leak), base64/hex-wrapped int, composite (`tenant:user`).
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- Tools: capture traffic with `mtmproxy`/Burp, then diff two accounts; `arjun -u {target}/api -m GET` to discover hidden id params; `ffuf` to sweep a numeric range.
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- Decision: predictable id → brute directly; opaque id → you need a second account or a leak (a listing endpoint, a referral link, an export) that hands you User A's id.
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### 2. Horizontal access (same privilege, other tenant)
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- Two sessions: authenticate User A and User B, capture both cookies/bearer tokens.
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- Replay User A's request using User B's session (swap only the auth header) → does B read A's object?
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- Also swap only the id in B's own request to point at A's object. Both must be tried: some apps key off the token, some off the path.
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- Concrete: `curl -s {target}/api/orders/1001 -H "Authorization: Bearer $TOKEN_B"` and confirm the body is A's order (A's name/email/amount), not an error.
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### 3. Vertical access (privilege escalation)
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- Low-priv token against admin endpoints (`/api/admin/users`, `/api/settings`), role/group id swaps (`"role":"admin"`, `groupId=1`), method flips (`GET`-only UI, try `PUT`/`DELETE`).
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### 4. Bypass techniques when a naive check exists
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- Encoding: base64/hex/URL-encode the id; double-encode.
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- Wrapping: `id[]=1&id[]=2`, HTTP param pollution `id=self&id=<victim>`, JSON `{"id":<victim>}` vs form.
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- Method/verb + content-type juggling; old API versions (`/v1/` vs `/v2/` where v1 lacks the check); trailing `.json`/`;`.
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- ID in body overriding ID in path (mass-assignment adjacent).
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### 5. Evidence — this is the whole finding
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- **You MUST show DIFFERENT DATA belonging to another user.** A 200 alone is NOT proof; a 200 that returns YOUR OWN data is a false positive (the server silently scoped to your token — disprove by confirming the returned id matches the victim, not you).
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- Quote the raw request (with the acting session) and the raw response body containing the victim's distinctive field (email, order total, SSN-tail).
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- False positives to rule out: shared/public objects, decoy 200 with empty body, cached response, reflected input echoed back as if stored.
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### 6. Report
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```
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FINDING:
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- Title: IDOR on [resource] at [endpoint]
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- Severity: High
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- CWE: CWE-639
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- Endpoint: [URL]
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- Parameter: [id param]
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- User A Data: [what user A sees]
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- User B Data: [what user B sees accessing A's resource]
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- Impact: Unauthorized access to other users' data
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- Remediation: Implement object-level authorization checks
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```
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- chains_from: [a listing/export endpoint or referral link that leaked the victim id]
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- Chaining hooks: harvested victim ids/emails feed account-takeover, mass-assignment (write IDOR → change another user's password/role), and bulk exfil across the enumerated range.
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## System Prompt
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You are an IDOR specialist. IDOR is confirmed ONLY when you demonstrate that User B can access User A's data by manipulating an object reference. A 200 status code alone is NOT proof, and a 200 that returns the caller's OWN data is a false positive — you must show data that provably belongs to another user (match the returned id/email to the victim, not the actor). Always compare response bodies across two identities, not just status codes. Read-only: enumerate and read; do not modify or delete other users' objects. AUTHORIZED engagement.
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