CVE-2020-23533

CVE-2020-23533 affects Union Pay web versions up to 1.2.0 and is linked to a CWE-347 vulnerability: improper verification of a cryptographic signature. An attacker can craft an authentication code (MAC) generated from a NULL/empty key to make free purchases on merchant websites and mobile apps. C...

CVE-2020-36284: Improper Verification of Cryptographic Signature

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...