Google Android 13.0 AppRestrictionController.java getBackgroundRestrictionExemptionReason Local Privilege Escalation

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.
6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Google Android 13.0. It has been rated as problematic. This issue affects the function getBackgroundRestrictionExemptionReason of the file AppRestrictionController.java. The manipulation leads to an unknown weakness. This vulnerability is referenced as CVE-2022-20420. The attack can only be performed from a local environment. No exploit is available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Google Android 13.0 (Smartphone Operating System). This issue affects the function getBackgroundRestrictionExemptionReason of the file AppRestrictionController.java. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In getBackgroundRestrictionExemptionReason of AppRestrictionController.java, there is a possible way to bypass device policy restrictions due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-238377411

The weakness was published 10/12/2022 as A-238377411. The advisory is shared at source.android.com. The identification of this vulnerability is CVE-2022-20420 since 10/14/2021. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/07/2022). It is expected to see the exploit prices for this product increasing in the near future.

Applying a patch is able to eliminate this problem.

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

Productinfo

Type

Vendor

Name

Version

License

Website

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

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

Exploitinginfo

Class: Local Privilege Escalation
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/14/2021 🔍
10/12/2022 +363 days 🔍
10/12/2022 +0 days 🔍
12/07/2022 +56 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: A-238377411
Status: Confirmed

CVE: CVE-2022-20420 (🔍)
GCVE (CVE): GCVE-0-2022-20420
GCVE (VulDB): GCVE-100-210665
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 10/12/2022 11:10
Updated: 12/07/2022 14:52
Replaces Duplicates: 🔍
Changes: 10/12/2022 11:10 (41), 11/07/2022 07:30 (11), 12/07/2022 14:52 (1)
Complete: 🔍
Cache ID: 216::103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!