CVE-2020-36285 - Union Pay up to 3.3.12, for iOS mobile apps, 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

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HIGH

Union Pay up to 3.3.12, for iOS mobile apps, 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

Published Apr 6, 2021

7.5

HIGH

CVSS 3.1

EPSS 0.90%

Description

Union Pay up to 3.3.12, for iOS mobile apps, 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.

Affected products

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-347

References (4)

http://mobitec.ie.cuhk.edu.hk/cve_2020/
x_refsource_MISCPermissions Required
https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-23827
Advisory
https://www.dropbox.com/s/6smwnbrp0kgsgrc/poc_code.py?dl=0
x_refsource_MISCThird Party Advisory
https://www.dropbox.com/s/czbkdr73tclq2nr/UnionPay_Vulnerability_Report.txt?dl=0
x_refsource_MISCThird Party Advisory

Link	Providers	Tags
http://mobitec.ie.cuhk.edu.hk/cve_2020/		x_refsource_MISCPermissions Required
https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-23827		Advisory
https://www.dropbox.com/s/6smwnbrp0kgsgrc/poc_code.py?dl=0		x_refsource_MISCThird Party Advisory
https://www.dropbox.com/s/czbkdr73tclq2nr/UnionPay_Vulnerability_Report.txt?dl=0		x_refsource_MISCThird Party Advisory