VDB-136223 · CVE-2019-2091 · GCVE-0-2019-2091

Google Android up to 8.1 Permission Check DevicePolicyManagerService.java GetPermittedAccessibilityServicesForUser access control

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.
6.3	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Google Android 7.0/7.1.1/7.1.2/8.0/8.1 and classified as critical. Affected is the function GetPermittedAccessibilityServicesForUser of the file DevicePolicyManagerService.java of the component Permission Check. The manipulation leads to access control. This vulnerability is listed as CVE-2019-2091. The attack must be carried out locally. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Google Android 7.0/7.1.1/7.1.2/8.0/8.1 (Smartphone Operating System). It has been rated as critical. This issue affects the function GetPermittedAccessibilityServicesForUser of the file DevicePolicyManagerService.java of the component Permission Check. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In GetPermittedAccessibilityServicesForUser of DevicePolicyManagerService.java, there is a possible permissions bypass due to a missing permission check. This could lead to local escalation of privilege, with no additional permissions required. User interaction is not needed for exploitation. Product: Android. Versions: Android-7.0 Android-7.1.1 Android-7.1.2 Android-8.0 Android-8.1. Android ID: A-128599660.

The weakness was presented 06/07/2019 (Website). It is possible to read the advisory at source.android.com. The identification of this vulnerability is CVE-2019-2091 since 12/10/2018. Attacking locally is a requirement. A simple authentication is necessary for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Applying a patch is able to eliminate this problem.

See VDB-136222, VDB-136224, VDB-136225 and VDB-136226 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Smartphone Operating System

Vendor

Google

Name

Android

Version

License

free

Website

Vendor: https://www.google.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/10/2018 🔍
06/07/2019 +179 days 🔍
06/08/2019 +1 days 🔍
06/21/2020 +379 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: source.android.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-2091 (🔍)
GCVE (CVE): GCVE-0-2019-2091
GCVE (VulDB): GCVE-100-136223
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 06/08/2019 18:10
Updated: 06/21/2020 14:17
Changes: 06/08/2019 18:10 (60), 06/21/2020 14:17 (1)
Complete: 🔍
Cache ID: 216::103