Security Advisory
CVE-2020-23533
CVE vulnerability detail — eXtreme Datacenter Security Operations
Description
Union Pay up to 1.2.0, for web based versions 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.