What is CVE-2020-36284?

CVE-2020-36284 is a high-severity vulnerability in Unionpayintl Union Pay, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.5/10. Published 2021-04-06.

How severe is CVE-2020-36284?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Unionpayintl Union Pay

CVE-2020-36284

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.

EPSS: 0.009 (56.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Unionpayintl Union_pay
N/a — versions n/a

Weakness classification (CWE)

CWE-347 — Improper Verification of Cryptographic Signature

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Permissions Required, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-36284?: CVE-2020-36284 is a high-severity vulnerability in Unionpayintl Union Pay, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.5/10. Published 2021-04-06.
How severe is CVE-2020-36284?: High severity. CVSS v3 base score is 7.5 out of 10.