Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Unionpayintl | Union Pay | <= 1.2.0 |
Related Weaknesses (CWE)
References
- http://mobitec.ie.cuhk.edu.hk/cve_2020/Permissions Required
- https://cwe.mitre.org/data/definitions/347.htmlTechnical Description
- https://www.dropbox.com/s/6smwnbrp0kgsgrc/poc_code.py?dl=0Third Party Advisory
- https://www.dropbox.com/s/czbkdr73tclq2nr/UnionPay_Vulnerability_Report.txt?dl=0Third Party Advisory
- http://mobitec.ie.cuhk.edu.hk/cve_2020/Permissions Required
- https://cwe.mitre.org/data/definitions/347.htmlTechnical Description
- https://www.dropbox.com/s/6smwnbrp0kgsgrc/poc_code.py?dl=0Third Party Advisory
- https://www.dropbox.com/s/czbkdr73tclq2nr/UnionPay_Vulnerability_Report.txt?dl=0Third Party Advisory
FAQ
What is CVE-2020-23533?
CVE-2020-23533 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ap...
How severe is CVE-2020-23533?
CVE-2020-23533 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-23533?
Check the references section above for vendor advisories and patch information. Affected products include: Unionpayintl Union Pay.