CVE-2020-23533

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2020-23533
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.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:P/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References
Link Resource
http://mobitec.ie.cuhk.edu.hk/cve_2020/ Permissions Required
https://cwe.mitre.org/data/definitions/347.html Technical Description
https://www.dropbox.com/s/6smwnbrp0kgsgrc/poc_code.py?dl=0 Third Party Advisory
https://www.dropbox.com/s/czbkdr73tclq2nr/UnionPay_Vulnerability_Report.txt?dl=0 Third Party Advisory
http://mobitec.ie.cuhk.edu.hk/cve_2020/ Permissions Required
https://cwe.mitre.org/data/definitions/347.html Technical Description
https://www.dropbox.com/s/6smwnbrp0kgsgrc/poc_code.py?dl=0 Third Party Advisory
https://www.dropbox.com/s/czbkdr73tclq2nr/UnionPay_Vulnerability_Report.txt?dl=0 Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:unionpayintl:union_pay:*:*:*:*:*:*:*:*
History

21 Nov 2024, 05:13

Type Values Removed Values Added
References () http://mobitec.ie.cuhk.edu.hk/cve_2020/ - Permissions Required () http://mobitec.ie.cuhk.edu.hk/cve_2020/ - Permissions Required
References () https://cwe.mitre.org/data/definitions/347.html - Technical Description () https://cwe.mitre.org/data/definitions/347.html - Technical Description
References () https://www.dropbox.com/s/6smwnbrp0kgsgrc/poc_code.py?dl=0 - Third Party Advisory () https://www.dropbox.com/s/6smwnbrp0kgsgrc/poc_code.py?dl=0 - Third Party Advisory
References () https://www.dropbox.com/s/czbkdr73tclq2nr/UnionPay_Vulnerability_Report.txt?dl=0 - Third Party Advisory () https://www.dropbox.com/s/czbkdr73tclq2nr/UnionPay_Vulnerability_Report.txt?dl=0 - Third Party Advisory

05 Nov 2022, 02:05

Type Values Removed Values Added
References (MISC) https://cwe.mitre.org/data/definitions/347.html - (MISC) https://cwe.mitre.org/data/definitions/347.html - Technical Description

10 Jul 2022, 21:15

Type Values Removed Values Added
References
  • (MISC) https://cwe.mitre.org/data/definitions/347.html -
Information

Published : 2021-04-06 16:15

Updated : 2024-11-21 05:13

NVD link : CVE-2020-23533

Mitre link : CVE-2020-23533

CVE.ORG link : CVE-2020-23533

JSON object : View

Products Affected

unionpayintl

  • union_pay
CWE
CWE-347

Improper Verification of Cryptographic Signature