VDB-192992 · CVE-2021-39668 · A-193445603

Google Android 11.0/12.0 DetailDialog.kt onActivityViewReady 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.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Google Android 11.0/12.0. This affects the function onActivityViewReady of the file DetailDialog.kt. Such manipulation leads to access control. This vulnerability is uniquely identified as CVE-2021-39668. Local access is required to approach this attack. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Google Android 11.0/12.0 (Smartphone Operating System) and classified as critical. Affected by this issue is the function onActivityViewReady of the file DetailDialog.kt. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 02/12/2022 as A-193445603. The advisory is shared for download at source.android.com. This vulnerability is handled as CVE-2021-39668 since 08/23/2021. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 02/12/2022). It is expected to see the exploit prices for this product increasing in the near future.The MITRE ATT&CK project declares the attack technique as T1068.

Applying a patch is able to eliminate this problem.

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

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: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: Access control
CWE: CWE-284 / CWE-266
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

08/23/2021 🔍
02/12/2022 +173 days 🔍
02/12/2022 +0 days 🔍
02/17/2022 +5 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: A-193445603
Status: Confirmed

CVE: CVE-2021-39668 (🔍)
GCVE (CVE): GCVE-0-2021-39668
GCVE (VulDB): GCVE-100-192992
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 02/12/2022 11:20
Updated: 02/17/2022 10:59
Changes: 02/12/2022 11:20 (42), 02/17/2022 10:59 (1)
Complete: 🔍
Cache ID: 216::103