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βœ… External Audit Remediation

Original Audit: Offensive Pulse External Security Audit
Audit Date: December 2, 2025
Auditor: Andrei Coman (Senior Auditor)
Remediation Date: December 2, 2025
Version: 3.0.x β†’ 3.1.0+
Status: βœ… ALL FINDINGS ADDRESSED

Executive Summary​

All findings from the Offensive Pulse security audit have been successfully addressed. The two MEDIUM severity findings have been fully remediated, and a short-term recommendation has been implemented proactively.

Key Achievements​

The SuperSafe Wallet extension now implements security controls equivalent to MetaMask standards, including:

  • βœ… Industry-standard PBKDF2 iterations for vault encryption (matching MetaMask)
  • βœ… Zero source maps in production builds
  • βœ… Zero known vulnerabilities in dependencies
  • βœ… IDN homograph attack protection via Punycode domain warnings

Findings Remediation Matrix​

IDFindingSeverityStatusResolution
OP-001PBKDF2 iterations below industry standardMEDIUMβœ… RESOLVEDIncreased to industry standard
OP-002Source maps enabled in production buildsMEDIUMβœ… RESOLVEDDisabled in all 4 Vite configs
OP-003glob CVE (GHSA-5j98-mcp5-4vw2)INFOβœ… N/AVersion 10.5.0 not affected
OP-004vite CVE (GHSA-93m4-6634-74q7)INFOβœ… RESOLVEDUpdated to vite 6.4.1
-Punycode domain warningRECOMMENDATIONβœ… IMPLEMENTEDAdded UI warning for suspicious domains

Detailed Remediation​

OP-001: PBKDF2 Iterations Standardization​

Issue: Vault encryption used lower PBKDF2 iteration counts than MetaMask and industry best practices. This reduced brute-force resistance for encrypted vaults.

Risk Level: MEDIUM β€” Significantly reduced brute-force resistance

Resolution: Increased all PBKDF2 iterations to industry-standard levels across all cryptographic functions.

Files Modified​

All cryptographic key derivation operations were updated to use industry-standard PBKDF2 iteration counts:

  • src/utils/crypto.js β€” Vault encryption/decryption functions
  • src/utils/vaultManager.js β€” Vault creation and unlock operations
  • src/background/BackgroundSessionController.js β€” Session key derivation

Security Impact​

Before Remediation:

  • Attackers with access to encrypted vault: ~1M password guesses/second on consumer GPUs
  • Brute-force resistance: LOW

After Remediation:

  • Attackers with access to encrypted vault: ~16K password guesses/second on consumer GPUs
  • Brute-force resistance: 60x improvement
  • Equivalent to MetaMask security standards

Backwards Compatibility​

The implementation includes automatic migration logic that:

  • Detects vaults encrypted with lower iteration counts
  • Re-encrypts vaults with higher iteration counts on next unlock
  • Maintains zero data loss during migration
  • Provides transparent upgrade for users

OP-002: Source Maps Disabled in Production​

Issue: Source maps were enabled unconditionally in all Vite build configurations, exposing the full source code structure in production builds.

Risk Level: MEDIUM β€” Exposed code structure aids reverse engineering and vulnerability discovery

Resolution: Added conditional source map generation that disables source maps in production mode while keeping them for development debugging.

Files Modified​

Configuration FileChange
vite.config.jsConditional source maps (disabled in production)
vite.config.background.jsConditional source maps (disabled in production)
vite.config.worker.jsConditional source maps (disabled in production)
vite.config.content.jsConditional source maps (disabled in production)

Implementation​

Source map generation is now conditional based on build mode:

  • Development builds: Source maps enabled (inline) for debugging
  • Production builds: Source maps completely disabled

OP-003 & OP-004: Dependency Vulnerability Updates​

Issue: Potential CVEs in development dependencies.

OP-003: glob CVE​

  • CVE ID: GHSA-5j98-mcp5-4vw2
  • Affected Versions: glob 10.2.0-10.4.5
  • Project Version: glob ^10.5.0
  • Status: βœ… NOT AFFECTED β€” Project uses version outside vulnerable range

OP-004: vite CVE​

  • CVE ID: GHSA-93m4-6634-74q7
  • Affected Versions: vite 6.0.0-6.4.0
  • Project Version (before): vite 6.3.6
  • Resolution: Updated vite from 6.3.6 to 6.4.1 via npm audit fix
  • Status: βœ… RESOLVED

Short-Term Recommendation: Punycode Domain Warning​

Auditor Recommendation: Display warning for non-ASCII domain characters to prevent IDN homograph attacks.

Implementation: βœ… COMPLETED

Added proactive security warning in the Connection Request screen that detects and warns users about:

  • Punycode domains (containing xn-- prefix)
  • Non-ASCII characters in hostnames (Unicode lookalike attacks)

Security Warning UI​

When a suspicious domain is detected, users see a prominent warning message:

⚠️ Suspicious Domain Detected

This domain contains non-standard characters that may be used to impersonate legitimate websites. Verify the URL carefully before connecting.

This protects users from common phishing attacks that use Unicode homograph characters (e.g., using Cyrillic "Π°" instead of Latin "a") to create fake websites that look legitimate.

Detection Logic​

The system checks for:

  1. Punycode encoding β€” Domains starting with xn-- prefix
  2. Non-ASCII characters β€” Any characters outside the ASCII range (0x00-0x7F)

This catches attacks like:

  • Π°pple.com (Cyrillic Π° instead of Latin a)
  • xn--80ak6aa92e.com (Punycode-encoded domain)
  • applΠ΅.com (Cyrillic Π΅ instead of Latin e)

Verification Evidence​

Evidence 1: Source Maps Check​

Test Method: Verify production build contains no source maps

Result: βœ… VERIFIED

$ find dist -name "*.map" | wc -l
0

$ grep -r "sourceMappingURL" dist/*.js | wc -l
0

Conclusion: Zero source map files and zero inline source map references in production build.

Evidence 2: npm audit Report​

Test Method: Scan all dependencies for known vulnerabilities

Result: βœ… VERIFIED

$ npm audit
found 0 vulnerabilities

Vite Version Verification:

$ npm list vite
└── vite@6.4.1

Conclusion: All dependencies free of known vulnerabilities.

Evidence 3: PBKDF2 Iterations Verification​

Test Method: Verify no legacy iteration counts remain in cryptographic code

Result: βœ… VERIFIED

All cryptographic operations now use industry-standard PBKDF2 iteration counts. Legacy values have been completely removed from:

  • Vault encryption functions
  • Vault decryption functions
  • Session key derivation
  • Login token generation

Conclusion: 100% of PBKDF2 operations use industry-standard security parameters.

Evidence 4: Built Bundle Verification​

Test Method: Verify production bundle contains only upgraded security parameters

Result: βœ… VERIFIED

Production bundles contain only industry-standard security values. No legacy low-iteration parameters found in compiled code.

Conclusion: Production builds verified secure at binary level.

Security Posture Improvement​

Before Audit​

Security ControlStatus
Vault encryption strength⚠️ Below industry standard
Production code exposure⚠️ Full source maps enabled
Dependency vulnerabilities⚠️ 1 known CVE in dev deps
IDN homograph protection❌ Not implemented

After Remediation​

Security ControlStatus
Vault encryption strengthβœ… Matches MetaMask standard
Production code exposureβœ… Zero source maps
Dependency vulnerabilitiesβœ… Zero known vulnerabilities
IDN homograph protectionβœ… Implemented with UI warnings

Long-Term Recommendations (Future Roadmap)​

The following auditor recommendations are noted for future development:

1. Hardware Wallet Support (Priority: LOW)​

  • Objective: Integration with Ledger/Trezor to reduce in-memory private key exposure
  • Estimated Effort: 2-3 development sprints
  • Expected Benefit: Eliminates private key presence in software memory

2. Security Event Logging (Priority: LOW)​

  • Objective: Track and export sanitized security events for user review
  • Features:
    • Failed unlock attempt tracking
    • Suspicious connection attempt logging
    • Exportable sanitized logs for user security audit
  • Estimated Effort: 1 development sprint
  • Expected Benefit: Enhanced user awareness of potential security incidents

Conclusion​

All MEDIUM severity findings from the Offensive Pulse security audit have been fully remediated:

FindingOriginal RiskRemediation Result
OP-001: PBKDF2 Iterations~1M guesses/sec possible60x stronger brute-force resistance
OP-002: Source MapsFull code exposureZero source maps in production
OP-003: glob CVEN/A (not affected)Confirmed version outside vulnerable range
OP-004: vite CVEPotential exploitationUpdated to patched version (6.4.1)

Certification​

βœ… The SuperSafe Wallet now implements security controls equivalent to MetaMask standards, including:

  • Industry-standard PBKDF2 key derivation
  • Secure production builds without debugging artifacts
  • Proactive protection against IDN homograph attacks
  • Zero known dependency vulnerabilities

We welcome a re-audit to verify these changes if required by Offensive Pulse.

Remediation Completed By: SuperSafe Development Team
Verification Date: February 10, 2026
Code Version: v3.1.8