CVE-2020-23533 - Vulnerability Details - OpenCVE

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.

Published: 2021-04-06

Score: 7.5 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

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

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2020-16277	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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00154.

Key SSVC decision points have not yet been added.

References

Link	Providers
http://mobitec.ie.cuhk.edu.hk/cve_2020/
https://cwe.mitre.org/data/definitions/347.html
https://www.dropbox.com/s/6smwnbrp0kgsgrc/poc_code.py?dl=0
https://www.dropbox.com/s/czbkdr73tclq2nr/UnionPay_Vulnerability_Report.txt?dl=0

History

No history.

Subscriptions

Unionpayintl Union Pay

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-04-06T15:34:59.000Z

Updated: 2024-08-04T14:58:15.204Z

Reserved: 2020-08-13T00:00:00.000Z

Link: CVE-2020-23533

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-04-06T16:15:14.863

Modified: 2024-11-21T05:13:50.940

Link: CVE-2020-23533

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-347

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