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cveMitreCVE-2020-23533
HistoryApr 06, 2021 - 4:15 p.m.

CVE-2020-23533

2021-04-0616:15:14
CWE-347
mitre
web.nvd.nist.gov
25
4
cve-2020-23533
union pay
cwe-347
improper verification
cryptographic signature
vulnerability
free shopping
crafted authentication code
mac

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

AI Score

7.7

Confidence

High

EPSS

0.002

Percentile

52.8%

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.

Affected configurations

Nvd
Node
unionpayintlunion_payRange1.2.0
VendorProductVersionCPE
unionpayintlunion_pay*cpe:2.3:a:unionpayintl:union_pay:*:*:*:*:*:*:*:*

Social References

More

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

AI Score

7.7

Confidence

High

EPSS

0.002

Percentile

52.8%

Related for CVE-2020-23533