VDB-172512 · CVE-2020-36284 · GCVE-0-2020-36284

Union Pay up to 3.4.93.4.9 on Android signature verification

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.2	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Union Pay up to 3.4.93.4.9 on Android and classified as critical. Affected is an unknown function. The manipulation results in signature verification. This vulnerability is reported as CVE-2020-36284. Moreover, an exploit is present.

Detailsinfo

A vulnerability classified as critical has been found in Union Pay up to 3.4.93.4.9 on Android (Android App Software). Affected is an unknown code. The manipulation with an unknown input leads to a signature verification vulnerability. CWE is classifying the issue as CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 04/07/2021. The advisory is shared for download at dropbox.com. This vulnerability is traded as CVE-2020-36284. Technical details are unknown but a public exploit is available.

The exploit is shared for download at dropbox.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Android App Software

Vendor

Union

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB 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: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/30/2021 🔍
04/07/2021 +8 days 🔍
04/07/2021 +0 days 🔍
04/10/2021 +3 days 🔍

Sourcesinfo

Advisory: dropbox.com
Status: Not defined

CVE: CVE-2020-36284 (🔍)
GCVE (CVE): GCVE-0-2020-36284
GCVE (VulDB): GCVE-100-172512
scip Labs: https://www.scip.ch/en/?labs.20130704

Entryinfo

Created: 04/07/2021 07:34
Updated: 04/10/2021 21:57
Changes: 04/07/2021 07:34 (40), 04/10/2021 21:57 (2)
Complete: 🔍
Cache ID: 216::103