CVE-2025-62453

// CVE-2025-62453 PoC - Conceptual Proof of Concept // Note: This is a conceptual demonstration based on the vulnerability description // Actual exploitation requires specific conditions and user interaction // Simulated vulnerable code pattern in GitHub Copilot/VS Code function vulnerableValidation(aiOutput) { // Inadequate validation - missing proper security checks if (aiOutput && aiOutput.content) { // Bypass security feature by exploiting validation flaw return executeAIOutput(aiOutput); } return null; } // Attack scenario: // 1. Attacker crafts malicious input to trigger AI response // 2. AI generates output with embedded malicious content // 3. Insufficient validation allows bypass of security checks // 4. Malicious code executes with elevated privileges // Example trigger (requires user interaction): const maliciousPrompt = 'Generate code to [malicious action]'; // User interaction required to trigger Copilot generation // Defense: Implement proper output validation function secureValidation(aiOutput) { // Add comprehensive security checks if (!validateOutputIntegrity(aiOutput)) { throw new SecurityException('Output validation failed'); } return executeAIOutput(aiOutput); }

{"cve": {"id": "CVE-2025-62453", "sourceIdentifier": "[email protected]", "published": "2025-11-11T18:15:50.423", "lastModified": "2025-11-14T15:30:40.577", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper validation of generative ai output in GitHub Copilot and Visual Studio Code allows an authorized attacker to bypass a security feature locally."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N", "baseScore": 5.0, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.3, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-693"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:visual_studio_code:*:*:*:*:*:-:*:*", "versionEndExcluding": "1.105.0", "matchCriteriaId": "F8AFA721-A9EC-4B62-811E-6C3FC77C805A"}]}]}], "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62453", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}