Implement RC3 security audit framework and vulnerability tracking#107
Implement RC3 security audit framework and vulnerability tracking#107
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Co-authored-by: Steake <530040+Steake@users.noreply.github.com>
…y tracking Co-authored-by: Steake <530040+Steake@users.noreply.github.com>
Co-authored-by: Steake <530040+Steake@users.noreply.github.com>
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Pull request overview
This PR establishes a comprehensive security audit framework for BitCell RC3, addressing issue #59 (note: referenced as #78 in some documents). The implementation provides structured procedures for vulnerability tracking, remediation workflows, and audit preparation across five security domains: cryptography, ZK circuits, ZKVM, economics, and penetration testing.
Key Changes
- Vulnerability tracking system: Established BITCELL-YYYY-NNN ID format with 6 documented known issues (1 High, 4 Medium, 1 Low severity)
- Remediation procedures: Time-bound SLAs for security response (Critical <24h, High <1wk, Medium <1mo) with incident response playbook
- Audit framework: 100+ checklist items across security domains with CVSS-based classification and report templates
Reviewed changes
Copilot reviewed 5 out of 5 changed files in this pull request and generated 7 comments.
Show a summary per file
| File | Description |
|---|---|
| docs/SECURITY_VULNERABILITIES.md | Active vulnerability tracking template with 6 documented issues including RBAC enforcement gap, faucet race conditions, and WebSocket memory leaks |
| docs/SECURITY_REMEDIATION.md | Standard operating procedures defining severity-based response protocols, incident handling, 90-day disclosure policy, and verification procedures |
| docs/SECURITY_AUDIT_SUMMARY.md | Executive overview reporting 75% audit readiness with 4-6 week timeline to reach 90%+ target before external audit engagement |
| docs/SECURITY_AUDIT.md | Comprehensive audit methodology with detailed checklists for cryptography, ZK circuits, ZKVM, economics, and penetration testing with 100+ items |
| docs/PRE_AUDIT_SECURITY_REPORT.md | Component-by-component security assessment of 12K+ LOC identifying strengths (crypto, economics) and areas needing work (ZK circuits, network hardening) |
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| // Remove stale rate limit entries | ||
| let cutoff = current_time() - RATE_LIMIT_TTL_SECS; |
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The code example for cleanup_old_entries references current_time() function which is not defined or imported. Consider specifying the actual function to use, such as std::time::SystemTime::now() or a crate-specific timestamp function to make this remediation actionable.
| let cutoff = current_time() - RATE_LIMIT_TTL_SECS; | |
| let cutoff = std::time::SystemTime::now() | |
| .duration_since(std::time::UNIX_EPOCH) | |
| .unwrap_or_default() | |
| .as_secs() - RATE_LIMIT_TTL_SECS; |
| @@ -0,0 +1,257 @@ | |||
| # Security Audit Framework - Implementation Summary | |||
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| **Issue:** #78 - Conduct Full Security Audit (Crypto, Contracts, Economics, PenTest) | |||
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| **ID:** BITCELL-2025-001 | ||
| **Date Reported:** 2025-12-09 | ||
| **Severity:** Medium | ||
| **CVSS Score:** 5.9 |
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[nitpick] CVSS score 5.9 doesn't match the "Medium" severity classification. According to the document's own severity classification (lines 365-378), Medium severity should have CVSS 4.0-6.9, so 5.9 is technically correct. However, the impact description states "Availability: Medium (DoS via fund depletion)" which seems more significant. Consider if this should be rated slightly higher (6.0-6.5) given that it allows bypassing rate limits to drain the faucet.
| **CVSS Score:** 5.9 | |
| **CVSS Score:** 6.3 |
| let now = current_time(); | ||
| self.revoked_tokens.retain(|token| token.expires_at > now); |
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The remediation code references current_time() again without definition. Same issue as in BITCELL-2025-003. For consistency and actionability, specify the actual time function to use.
| Create role-checking middleware or decorators: | ||
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| ```rust | ||
| // Add role requirement to route registration | ||
| .route("/api/admin/nodes/start", | ||
| post(start_node_handler).layer(RequireRole::Admin)) | ||
| .route("/api/admin/metrics", | ||
| get(get_metrics_handler).layer(RequireRole::Operator)) |
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[nitpick] The code example shows .layer(RequireRole::Admin) but this middleware doesn't exist in the codebase yet (this is the remediation being proposed). Consider clarifying this is a proposed implementation pattern, or provide the actual middleware implementation code to make this actionable. The example might be clearer if it showed both the current vulnerable pattern and the proposed secure pattern side-by-side.
| Create role-checking middleware or decorators: | |
| ```rust | |
| // Add role requirement to route registration | |
| .route("/api/admin/nodes/start", | |
| post(start_node_handler).layer(RequireRole::Admin)) | |
| .route("/api/admin/metrics", | |
| get(get_metrics_handler).layer(RequireRole::Operator)) | |
| Create role-checking middleware or decorators. The following is a proposed implementation pattern. For clarity, both the current (vulnerable) and proposed (secure) patterns are shown, along with a minimal middleware stub: | |
| ```rust | |
| // Vulnerable: No role check on admin endpoint | |
| .route("/api/admin/nodes/start", post(start_node_handler)) | |
| // Secure: Add role requirement to route registration | |
| .route("/api/admin/nodes/start", post(start_node_handler).layer(RequireRole::Admin)) | |
| // Minimal stub for RequireRole middleware (proposed) | |
| struct RequireRole { | |
| role: Role, | |
| } | |
| impl<S> tower::Layer<S> for RequireRole { | |
| type Service = RequireRoleMiddleware<S>; | |
| fn layer(&self, service: S) -> Self::Service { | |
| RequireRoleMiddleware { | |
| service, | |
| role: self.role.clone(), | |
| } | |
| } | |
| } | |
| struct RequireRoleMiddleware<S> { | |
| service: S, | |
| role: Role, | |
| } | |
| // ... implement Service for RequireRoleMiddleware to check role ... |
| .route("/api/admin/metrics", | ||
| get(get_metrics_handler).layer(RequireRole::Operator)) | ||
| ``` | ||
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[nitpick] The vulnerability description correctly identifies the RBAC enforcement gap documented in repo memories. The remediation suggestion with .layer(RequireRole::Admin) is appropriate. Consider adding a note that this requires implementing the RequireRole middleware layer first, as it doesn't currently exist in the codebase.
| > **Note:** The `RequireRole` middleware layer must be implemented, as it does not currently exist in the codebase. |
| // Use RwLock properly or atomic compare-and-swap | ||
| let mut rate_limits = self.rate_limits.write().await; | ||
| if !self.check_rate_limit_locked(&rate_limits, address) { | ||
| return Err(Error::RateLimited); | ||
| } | ||
| self.record_request_locked(&mut rate_limits, address, amount); |
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The remediation code example has a logical issue. The function check_rate_limit_locked is called with &rate_limits, but the function signature should accept the lock guard directly. Also, record_request_locked takes &mut rate_limits, which is correct. However, the example doesn't show the complete atomic operation - both check and record should happen within the same write lock scope. Consider showing the full pattern:
let mut rate_limits = self.rate_limits.write().await;
if !check_rate_limit(&rate_limits, address) {
return Err(Error::RateLimited);
}
record_request(&mut rate_limits, address, amount);
// Lock is held throughout, preventing TOCTOU| // Use RwLock properly or atomic compare-and-swap | |
| let mut rate_limits = self.rate_limits.write().await; | |
| if !self.check_rate_limit_locked(&rate_limits, address) { | |
| return Err(Error::RateLimited); | |
| } | |
| self.record_request_locked(&mut rate_limits, address, amount); | |
| // Hold the write lock for both check and record to ensure atomicity | |
| let mut rate_limits = self.rate_limits.write().await; | |
| if !self.check_rate_limit(&rate_limits, address) { | |
| return Err(Error::RateLimited); | |
| } | |
| self.record_request(&mut rate_limits, address, amount); |
Establishes comprehensive security audit infrastructure for RC3-001 requirement: cryptography, ZK circuits, ZKVM, economics, and penetration testing procedures with active vulnerability tracking.
Framework Components
SECURITY_AUDIT.md (31KB) - Master audit procedures
SECURITY_VULNERABILITIES.md (10KB) - Active issue tracker
PRE_AUDIT_SECURITY_REPORT.md (21KB) - Current state assessment
SECURITY_REMEDIATION.md (14KB) - Response procedures
SECURITY_AUDIT_SUMMARY.md (8KB) - Executive overview
Security Assessment
Strengths:
Critical Path to Audit:
Estimated 4-6 weeks to audit-ready state.
Example Vulnerability Entry
Recommended: