GU App up to 5.0.2 on Android Custom URL Scheme improper authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in GU App up to 5.0.2 on Android. Affected by this issue is some unknown functionality of the component Custom URL Scheme Handler. The manipulation leads to improper authorization. This vulnerability is referenced as CVE-2021-20777. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in GU App up to 5.0.2 on Android (Android App Software) and classified as critical. This issue affects an unknown functionality of the component Custom URL Scheme Handler. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability.

The weakness was published 07/07/2021. The advisory is shared at jvn.jp. The identification of this vulnerability is CVE-2021-20777. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authorization
CWE: CWE-285 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/17/2020 🔍
07/07/2021 +201 days 🔍
07/07/2021 +0 days 🔍
07/10/2021 +3 days 🔍

Sourcesinfo

Advisory: jvn.jp
Status: Not defined

CVE: CVE-2021-20777 (🔍)
GCVE (CVE): GCVE-0-2021-20777
GCVE (VulDB): GCVE-100-178025
scip Labs: https://www.scip.ch/en/?labs.20130704

Entryinfo

Created: 07/07/2021 13:01
Updated: 07/10/2021 06:25
Changes: 07/07/2021 13:01 (37), 07/10/2021 06:25 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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