The following code is for security research and authorized testing only.
python
// CVE-2025-58307 PoC - UAF in Screen Recording Framework
// This is a conceptual PoC for demonstration purposes
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// Simulated Screen Recording Framework structures
typedef struct {
void* recording_buffer;
int buffer_size;
int status;
} ScreenRecorderContext;
typedef struct {
char* metadata;
void (*cleanup)(void*);
} RecordingMetadata;
// Vulnerable function simulating UAF condition
void trigger_uaf_vulnerability(ScreenRecorderContext* ctx) {
RecordingMetadata* meta = (RecordingMetadata*)ctx->recording_buffer;
// Free the buffer without clearing the pointer
free(meta->metadata);
free(meta);
// UAF: Continue using freed memory
// In real scenario, attacker could control this freed region
printf("Accessing freed metadata: %s\n", meta->metadata);
// Trigger cleanup with dangling pointer
if (meta->cleanup) {
meta->cleanup(meta);
}
}
// Trigger function
int main() {
ScreenRecorderContext* ctx = (ScreenRecorderContext*)malloc(sizeof(ScreenRecorderContext));
ctx->recording_buffer = malloc(sizeof(RecordingMetadata));
RecordingMetadata* meta = (RecordingMetadata*)ctx->recording_buffer;
meta->metadata = strdup("Recording session data");
meta->cleanup = NULL;
// Trigger the UAF vulnerability
trigger_uaf_vulnerability(ctx);
free(ctx);
return 0;
}
/*
Attack Scenario:
1. Attacker gains local access to Huawei device with high privileges
2. Attacker triggers screen recording functionality
3. Through specific interaction, attacker causes memory to be freed while reference remains
4. Attacker reallocates freed memory with malicious data
5. When framework accesses dangling pointer, attacker-controlled data is processed
6. Potential for privilege escalation or arbitrary code execution
*/