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app.kolega.dev/applications/acme-api
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payment-api > Findings
12 Findings
Severity ▾
Status ▾
Critical
3
High
5
Medium
3
Low
1
SeverityFindingStatus
Second-Order SQL Injection in Report BuilderFix Ready
JWT Audience Confusion in Auth MiddlewareFix Ready
Unsafe Deserialization in Product ConfigNeeds Review
CORS Subdomain Injection via Wildcard MatchFix Ready
Time-of-Check Race Condition in File AccessOpen
Token Refresh Race ConditionFix Ready
Showing 6 of 12 findings • 8 fixes generated • 3 PRs ready to merge

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Vulnerabilities Found
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From Detection to Merge-Ready PR, Automatically

See how Kolega.dev detects a sophisticated Second-Order SQL Injection across service boundaries and generates a complete fix

Generated Pull Request

Kolega.dev
kolega.dev
Security Fix: Second-Order SQL Injection in Analytics Engine (CVE-2024-9156)
#492 • wants to merge 7 commits into main
criticalsecurityautomatedverified
🚨 Vulnerability Summary

Severity: Critical (CVSS 9.3)

Second-order SQL injection where user input stored safely via ORM is later retrieved and used unsafely in dynamic report generation. Attacker payloads in company names execute 30+ days later during quarterly executive reporting, enabling complete database compromise.

🔍 Root Cause Analysis

Cross-boundary taint analysis traced user input through 4 code paths:

  • TenantController.updateProfile() - User input via REST API
  • TenantRepository.save() - ORM storage (appears safe)
  • ReportBuilder.generateQuarterly() - Dynamic SQL construction
  • analytics.buildCompanyFilter() - String interpolation of stored data
🛡️ Fix Implementation
  • Implemented type-safe query builder with guaranteed parameterization
  • Replaced all dynamic SQL with parameterized WHERE IN clauses
  • Added content security validation for stored company names
  • Implemented allowlist validation for report sort fields
  • Added persistent taint tracking metadata in database
  • Created comprehensive SQL injection regression test suite
📁 Files Changed (7)
  • +156 -89 services/analytics/ReportBuilder.ts
  • +134 -0 services/analytics/SafeQueryBuilder.ts
  • +67 -23 controllers/TenantController.ts
  • +45 -12 validators/ContentValidator.ts
  • +89 -0 database/migrations/add_taint_metadata.sql
  • +234 -0 tests/security/second_order_sqli.test.ts
  • +78 -0 tests/integration/report_security.test.ts
✅ Verification & Testing
Unit tests: 89 SQL injection payloads blocked
Integration tests: Cross-service taint tracking verified
Penetration testing: sqlmap automated payloads neutralized
Performance impact: Query builder adds <5ms overhead
Regression testing: All 1,247 quarterly reports still generate
All checks have passed
No merge conflicts

Generated Diff

@@ -32,15 +32,28 @@ class TenantCorsManager {
async validateOrigin(origin: string, tenantId: string): Promise<boolean> {
- const tenantDomain = await this.getTenantDomain(tenantId);
- const allowedPattern = `https://.*.${tenantDomain}`;
- return origin.match(allowedPattern) !== null;
+ const tenantDomain = await this.getTenantDomain(tenantId);
+
+ // Prevent subdomain injection attacks
+ if (!tenantDomain || !this.isValidDomainFormat(tenantDomain)) {
+ this.logSecurityEvent('invalid_tenant_domain', { tenantId, tenantDomain });
+ return false;
+ }
+
+ // Strict subdomain validation with protocol enforcement
+ const validSubdomains = await this.getAllowedSubdomains(tenantId);
+ const urlParts = new URL(origin);
+
+ return urlParts.protocol === 'https:' &&
+ validSubdomains.includes(urlParts.hostname) &&
+ urlParts.hostname.endsWith(`.${tenantDomain}`);
}
@@ -67,8 +80,15 @@ class SecurityMiddleware {
setupCorsPolicy(app: Express): void {
const corsOptions = {
origin: this.validateOriginCallback.bind(this),
- credentials: true
+ credentials: true,
+ optionsSuccessStatus: 200,
+ preflightContinue: false,
+ maxAge: 86400
};
+ // Layer additional security headers
+ app.use(this.addSecurityHeaders.bind(this));
app.use(cors(corsOptions));
}

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Real Fixes from Real Codebases

Complex vulnerabilities detected and automatically resolved by our engine. Click any card to see the complete fix details.

Critical
FIXED

CORS Subdomain Injection

Problem
Malicious subdomains bypass CORS policies for data access
Fix Generated
Strict URL parsing + subdomain allowlist validation
user-management-api
PR #247+184 -35
High
FIXED

Time-of-Check Race Condition

Problem
File access persisted after permission revocation for 1+ hours
Fix Generated
Atomic permission checks + distributed locks
file-sharing-service
PR #219+578 -43
Critical
FIXED

JWT Audience Confusion

Problem
Customer admins accessed internal dashboard via shared tokens
Fix Generated
Audience validation + service-specific signing keys
admin-dashboard
PR #88+591 -132
High
FIXED

Token Refresh Race Condition

Problem
Session fixation via concurrent token refresh requests
Fix Generated
Atomic token rotation + Redis distributed locks
auth-service
PR #445+758 -67
Medium
FIXED

Double-Spend Race Condition

Problem
Customers purchased more items than inventory during flash sales
Fix Generated
Distributed saga pattern + compensation logic
inventory-system
PR #567+802 -45
Critical
FIXED

Unsafe Object Deserialization

Problem
Arbitrary code execution via malicious product configurations
Fix Generated
Schema validation + safe input sanitization
e-commerce-api
PR #203+811 -67

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Beyond Traditional SAST

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Traditional SASTKolega.dev
Detection methodPattern matchingSemantic analysis + pattern matching
Logic flaws & race conditionsNot detectedDetected
Cross-boundary vulnerabilitiesNot detectedTraced across services
Automated fix generation-Merge-ready PRs with tests
False positive rateHigh, manual triage required90% noise reduction
Setup timeCI pipeline changes, config files3 clicks, no config files
AI-generated code validation-Catches insecure LLM-generated patterns

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