CVE-2025-36083: IBM Concert Software堆内存未正确清零导致敏感信息泄露

// CVE-2025-36083 PoC - Heap Memory Information Disclosure // Target: IBM Concert Software 1.0.0 - 2.0.0 // Type: Local privilege escalation via improper heap memory clearing #include <stdio.h> #include <stdlib.h> #include <string.h> #include <stdint.h> /* * PoC demonstrates the concept of heap memory not being cleared before release. * In real attack scenario, this would involve: * 1. Attaching debugger to IBM Concert Software process * 2. Triggering the vulnerable code path that allocates sensitive buffers * 3. Freeing the buffer without proper clearing * 4. Using heap inspection techniques to read residual data */ void simulate_vulnerable_buffer_allocation() { printf("[*] Simulating vulnerable heap buffer allocation in IBM Concert Software\n"); // Allocate buffer for sensitive data (simulating internal buffer) char *sensitive_buffer = (char *)malloc(256); if (sensitive_buffer == NULL) { printf("[-] Memory allocation failed\n"); return; } // Copy sensitive data into buffer (simulating credential storage) const char *fake_credentials = "user:admin|password:S3cr3tP@ssw0rd|token:ABC123"; memcpy(sensitive_buffer, fake_credentials, strlen(fake_credentials) + 1); printf("[+] Sensitive data stored in heap buffer at %p\n", (void *)sensitive_buffer); printf("[+] Buffer content: %s\n", sensitive_buffer); // VULNERABILITY: Buffer freed WITHOUT clearing (no memset/safe_free) printf("[*] Freeing buffer WITHOUT proper memory clearing (VULNERABLE)\n"); free(sensitive_buffer); // After free, memory content still exists in heap (use-after-free scenario) printf("[!] Buffer freed but data may still be accessible in heap\n"); printf("[*] Attacker can now inspect heap memory to recover sensitive data\n"); } void demonstrate_secure_allocation() { printf("\n[*] Demonstrating SECURE buffer handling\n"); char *secure_buffer = (char *)malloc(256); if (secure_buffer == NULL) { printf("[-] Memory allocation failed\n"); return; } const char *data = "sensitive:data"; memcpy(secure_buffer, data, strlen(data) + 1); printf("[+] Data stored in secure buffer\n"); // SECURE: Clear buffer before freeing printf("[+] Clearing buffer with memset before free (SECURE)\n"); memset(secure_buffer, 0, 256); free(secure_buffer); printf("[+] Buffer securely cleared and freed\n"); } int main() { printf("========================================\n"); printf("CVE-2025-36083 PoC - Educational Purpose\n"); printf("IBM Concert Software Heap Memory Disclosure\n"); printf("========================================\n\n"); simulate_vulnerable_buffer_allocation(); demonstrate_secure_allocation(); printf("\n[*] Note: Real exploitation requires:\n"); printf(" - Local access to target system\n"); printf(" - Ability to attach debugger or use heap inspection tools\n"); printf(" - Triggering specific code paths in IBM Concert Software\n"); return 0; }