CVE-2020-36285 is a critical vulnerability affecting Union Pay iOS mobile apps up to version 3.3.12, stemming from an improper verification of cryptographic signatures (CWE-347). This flaw allows attackers to bypass payment authentication by crafting a fraudulent authentication code due to a NULL secret key, enabling them to make purchases for free on merchant platforms. With a CVSS score of 7.5 (HIGH), the vulnerability is easily exploitable over the network with low attack complexity, leading to high integrity impact without requiring user interaction. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 3.3.12CPE matchmatch criteria | cpe:2.3:a:unionpayintl:union_pay:*:*:*:*:*:iphone_os:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.