CVE-2026-7347 Google Chrome远程代码执行漏洞

// Conceptual PoC for Use-After-Free in Chromoting // This code demonstrates the logic of the vulnerability. #include <iostream> #include <cstring> // Simulating a Chromoting Session Object class ChromotingSession { public: virtual void handleTraffic(char* data) { std::cout << "Handling traffic: " << data << std::endl; } virtual ~ChromotingSession() {} }; // Global pointer representing the active session ChromotingSession* active_session = nullptr; void simulate_malicious_network_traffic() { // Step 1: Initialization - Create the session object active_session = new ChromotingSession(); // Step 2: Free the object (Simulating the 'Free' operation) // In the vulnerable code, the object is freed but active_session is not set to NULL. delete active_session; // Step 3: Memory Manipulation (Heap Grooming) // An attacker would spray the heap to control the memory at active_session. // For this example, we assume the memory is corrupted or reused. // Step 4: Use After Free (Simulating the 'Use' via malicious packet) // The application attempts to use the freed pointer. char* malicious_packet = "EXPLOIT_PAYLOAD"; if (active_session != nullptr) { // This line triggers the vulnerability, potentially leading to RCE active_session->handleTraffic(malicious_packet); } } int main() { simulate_malicious_network_traffic(); return 0; }