Microsoft YourPhone App on Android improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Microsoft YourPhone App on Android. Affected by this issue is some unknown functionality. Performing a manipulation results in improper authentication. This vulnerability is identified as CVE-2020-0943. The attack may be carried out on the physical device. There is not any exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Microsoft YourPhone App on Android (Android App Software) (affected version unknown). It has been classified as problematic. This affects an unknown functionality. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality. The summary by CVE is:

An authentication bypass vulnerability exists in Microsoft YourPhoneCompanion application for Android, in the way the application processes notifications generated by work profiles.This could allow an unauthenticated attacker to view notifications, aka 'Microsoft YourPhone Application for Android Authentication Bypass Vulnerability'.

The weakness was released 04/14/2020 as confirmed security update guide (Website). It is possible to read the advisory at portal.msrc.microsoft.com. The public release was coordinated with Microsoft. This vulnerability is uniquely identified as CVE-2020-0943. Attacking locally is a requirement. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The advisory points out:

An authentication bypass vulnerability exists in Microsoft YourPhoneCompanion application for Android, in the way the application processes notifications generated by work profiles.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 2.4
VulDB Temp Score: 2.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.6
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

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: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

11/04/2019 🔍
04/14/2020 +162 days 🔍
04/14/2020 +0 days 🔍
04/15/2020 +1 days 🔍
05/19/2024 +1495 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: portal.msrc.microsoft.com
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2020-0943 (🔍)
GCVE (CVE): GCVE-0-2020-0943
GCVE (VulDB): GCVE-100-153231
scip Labs: https://www.scip.ch/en/?labs.20130704

Entryinfo

Created: 04/15/2020 10:09
Updated: 05/19/2024 14:46
Changes: 04/15/2020 10:09 (42), 04/15/2020 10:14 (17), 05/19/2024 14:46 (18)
Complete: 🔍
Cache ID: 216::103

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