|CVSS Meta Temp Score|
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|Current Exploit Price (≈)|
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|CTI Interest Score|
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A vulnerability classified as critical was found in Union Pay up to 3.3.12 on iOS (iOS App Software). Affected by this vulnerability is an unknown code block. The manipulation with an unknown input leads to a weak authentication vulnerability. The CWE definition for the vulnerability is CWE-347. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
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.
The weakness was presented 04/07/2021. The advisory is shared at dropbox.com. This vulnerability is known as CVE-2020-36285 since 03/30/2021. The exploitation appears to be easy. Access to the local network is required for this attack. The requirement for exploitation is a single authentication. Technical details are unknown but a public exploit is available.
It is declared as proof-of-concept. It is possible to download the exploit at dropbox.com.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
CVSSv3VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.2
VulDB Base Score: 5.5
VulDB Temp Score: 5.2
VulDB Vector: 🔒
VulDB Reliability: 🔍
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
ExploitingClass: Weak authentication
Price Prediction: 🔍
Current Price Estimation: 🔒
Threat IntelligenceThreat: 🔍
CountermeasuresRecommended: no mitigation known
0-Day Time: 🔒
Timeline03/30/2021 CVE assigned
04/07/2021 +8 days Advisory disclosed
04/07/2021 +0 days VulDB entry created
04/10/2021 +3 days VulDB last update
Status: Not defined
CVE: CVE-2020-36285 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20161013
EntryCreated: 04/07/2021 07:35 AM
Updated: 04/10/2021 10:02 PM
Changes: (2) source_cve_assigned source_cve_nvd_summary
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