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CVE-2020-36284

Description

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.

POC

Reference

- https://www.dropbox.com/s/6smwnbrp0kgsgrc/poc_code.py?dl=0

Github

No PoCs found on GitHub currently.