Union Pay up to 3.4.93.4.9, for android, contains a CWE-347: Improper Verification of Cryptographic Signature vulnerability, allows attackers to shop for free in merchants' websites and mobile apps, via a crafted authentication code (MAC) which is generated based on a secret key which is NULL.
- https://www.dropbox.com/s/6smwnbrp0kgsgrc/poc_code.py?dl=0
No PoCs found on GitHub currently.