Audit Reports _

Security

Full transparency on every security analysis performed on the Bouclier protocol. All findings, fixes, and accepted risks are documented here.

Overall Status
SECURITY ASSESSMENTINTERNAL AUDIT COMPLETE — RISK: LOW

All five core contracts have undergone static analysis (Slither v0.11.5), symbolic execution (Mythril v0.24.8), invariant fuzzing (Foundry, 128K+ calls), and manual security review. All identified issues have been resolved or formally accepted with documented rationale. Certora formal verification specs are written and pending cloud execution. Third-party audit is planned pre-mainnet.

Test Suite
100/100
All tests passing
Invariants
9/9
Hold after 128K fuzz calls
Critical Findings
0
Zero unresolved
Overall Risk
LOW
All findings addressed
Slither Static Analysis
SLITHER v0.11.5 — ALL 5 CONTRACTS5 FINDINGS — ALL RESOLVED
IDSeverityFindingStatusResolution
S-1InfoLocked ether in PermissionVaultFixedAdded receive() revert + rescueETH()
S-2LowReentrancy-events in emergencyRevokeFixedEvent moved before external call (CEI pattern)
S-3InfoUnused return in logAction()AcknowledgedReturn value intentionally unused — annotated
S-4InfoUnused return in latestRoundData()AcknowledgedPartial destructuring is intentional — annotated
S-5InfoSolc version pragmaFixedUpdated to ^0.8.24
Mythril Symbolic Execution
MYTHRIL v0.24.8 — RUNTIME BYTECODE ANALYSIS0 ACTIONABLE FINDINGS
ContractIssuesSWC IDsDisposition
AgentRegistry0Clean
PermissionVault0Clean
RevocationRegistry0Clean
AuditLogger0Clean
SpendTracker1SWC-116Accepted — block.timestamp needed for oracle staleness
PermissionVault (ext)2SWC-123, SWC-101False positives — receive() revert by design; Solidity 0.8.24 overflow protection

12 SWC vulnerability classes tested. All critical classes (SWC-104, SWC-106, SWC-107, SWC-110, SWC-112, SWC-113, SWC-114) returned clean across all contracts.

Invariant Fuzzing
FOUNDRY v1.5.1 — 256 RUNS × 500 CALLS = 128,000 FUZZ CALLS PER INVARIANT9/9 INVARIANTS HOLD
IDPropertyResult
INV-1Agent count consistencyHOLDS
INV-2Revocation irreversibilityHOLDS
INV-3Audit record immutabilityHOLDS
INV-4Scope revocation permanenceHOLDS
INV-5Module type invariantHOLDS
INV-6Rolling spend monotonicityHOLDS
INV-7Admin non-nullityHOLDS
INV-8Revoked agent blockedHOLDS
INV-9Grant/revoke consistencyHOLDS

A BouclierHandler contract with 7 handler functions drives the fuzzer through realistic protocol operations including agent registration, permission grants, revocations, audit logging, spend recording, and timestamp warping.

Manual Security Review
MANUAL CODE REVIEW — ALL CONTRACTS2 FINDINGS — ALL FIXED
IDSeverityFindingStatusResolution
M-1HighEIP-712 SCOPE_TYPEHASH mismatchFixedSCOPE_TYPEHASH string did not include nonce field — violated EIP-712 spec. Corrected to include uint256 nonce.
M-2InfoDead code in PermissionVaultFixedUnreachable code path removed.
Formal Verification
CERTORA PROVER — 3 SPEC FILES, 15 RULESSPECS WRITTEN — PENDING CLOUD RUN
Spec FileContractRulesKey Properties
PermissionVault.specPermissionVault7Revoked agent always fails, binary validation result, nonce monotonicity, expired scope rejection
SpendTracker.specSpendTracker4Spend cap enforced, zero cap = no limit, rolling monotonicity
RevocationRegistry.specRevocationRegistry4Revoke always sets flag, timelock respected, double-revoke reverts

Configuration files prepared. Execution requires CERTORAKEY API access. Will be run prior to mainnet deployment.

Test Suite
Unit tests84/84
Integration tests7/7
Invariant tests9/9

All 100 Solidity tests pass after all security fixes including EIP-712 SCOPE_TYPEHASH correction and oracle circuit breaker implementation.

Accepted Risks
Low
Block timestamp in oracle staleness check

Required for Chainlink heartbeat validation. ±15s manipulation is negligible.

Low
Block timestamp in scope expiry

Permission windows are hours/days — ±15s is irrelevant.

Medium
Chainlink single oracle dependency

Stale-price revert implemented. TWAP fallback planned.

Key Fixes Applied

Locked Ether Protection

Added receive() revert and rescueETH() for accidental ETH recovery.

CEI Pattern Enforcement

Events moved before external calls in emergencyRevoke to prevent reentrancy-events.

EIP-712 Typehash Correction

SCOPE_TYPEHASH corrected to include nonce field per EIP-712 specification.

Oracle Circuit Breaker

5% deviation threshold on Chainlink price feeds with admin-refreshable anchor prices.

Responsible Disclosure
1
DiscoveryT+0

Vulnerability reported via the bug bounty program or direct disclosure

2
AssessmentT+24h

Security team triages severity and confirms reproducibility

3
RemediationT+72h

Patch developed, tested with formal verification

4
DeploymentT+96h

Multi-sig approves fix. Timelock executed for non-critical

5
DisclosureT+30d

Full public disclosure with technical write-up

Pre-Mainnet Roadmap
Next

Certora Cloud Run

Execute all 15 formal verification rules via Certora Prover cloud API.

Planned

Third-Party Audit

Competitive audit via Code4rena or engagement with Trail of Bits / OpenZeppelin.

Prepared

Immunefi Bug Bounty

$100K bounty pool — $50K critical, $10K high, $2K medium, $500 low.

Found a Vulnerability?

We take security seriously. Report any issues through our bug bounty program.

[SYS] BOUCLIER.ETH v0.1.0-alpha