Google Android OS Could Allow for Escalation of Privilege

Fortify Security Team
Feb 5, 2022

Multiple vulnerabilities have been discovered in the Google Android operating system (OS), the most severe of which could allow for escalation of privilege. Android is an operating system developed by Google for mobile devices, including, but not limited to, smartphones, tablets, and watches. Successful exploitation of the most severe of these vulnerabilities could allow for escalation of privilege. Depending on the privileges associated with this application, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. If this application has been configured to have fewer user rights on the system, exploitation of the most severe of these vulnerabilities could have less impact than if it was configured with administrative rights.

THREAT INTELLIGENCE: There are currently no reports of these vulnerabilities being exploited in the wild.

SYSTEMS AFFECTED:

  • Android OS builds utilizing Security Patch Levels issued prior to February 5, 2022

RISK:

Government:

  • Large and medium government entities: High
  • Small government entities: High

Businesses:

  • Large and medium business entities: High
  • Small business entities: High

Home users: Low

TECHNICAL SUMMARY:

Multiple vulnerabilities have been discovered in Google Android OS, the most severe of which could allow for escalation of privilege. Details of these vulnerabilities are as follows:

  • Multiple vulnerabilities in Framework, The most severe vulnerability in this section could lead to local escalation of privilege with no additional execution privileges needed. (CVE-2021-39619, CVE-2021-39662, CVE-2021-39663, CVE-2021-39676, CVE-2021-39664)
  • A vulnerability in Media Framework, the most severe vulnerability in this section could lead to local escalation of privilege with no additional execution privileges needed. (CVE-2020-13112, CVE-2020-13113, CVE-2021-39665, CVE-2021-39666)
  • Multiple vulnerabilities in System, The most severe vulnerability in this section could lead to remote escalation of privilege with no additional execution privileges needed. (CVE-2021-39675, CVE-2021-39668, CVE-2021-39669, CVE-2021-39671, CVE-2021-39674, CVE-2021-0706)
  • Multiple vulnerabilities in Project Mainline components. (CVE-2021-39662, CVE-2021-39663)
  • A vulnerability in System could lead to local information disclosure with no additional execution privileges needed. (CVE-2021-39631)
  • A vulnerability in Amlogic components. (CVE-2021-39672)
  • Multiple vulnerabilities in MediaTek components. (CVE-2022-20024, CVE-2022-20025, CVE-2022-20026, CVE-2022-20027, CVE-2022-20028)
  • A vulnerability in Unisoc components. (CVE-2021-39616, CVE-2021-39635, CVE-2021-39658)
  • Multiple high severity vulnerabilities in Qualcomm components. (CVE-2021-35068, CVE-2021-35069, CVE-2021-35074, CVE-2021-35075, CVE-2021-35077)
  • Multiple high and critical severity vulnerabilities in Qualcomm closed-source components. (CVE-2021-30317, CVE-2021-30309, CVE-2021-30318, CVE-2021-30322, CVE-2021-30323, CVE-2021-30326)

Successful exploitation of the most severe of these vulnerabilities could allow for escalation of privilege. Depending on the privileges associated with this application, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. If this application has been configured to have fewer user rights on the system, exploitation of the most severe of these vulnerabilities could have less impact than if it was configured with administrative rights.

RECOMMENDATIONS:

We recommend the following actions be taken:

  • Apply appropriate updates by Google Android or mobile carriers to vulnerable systems, immediately after appropriate testing.
  • Remind users to only download applications from trusted vendors in the Play Store.
  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.
  • Inform and educate users regarding threats posed by hypertext links contained in emails or attachments, especially from un-trusted sources.

REFERENCES:

Google Android:

https://source.android.com/security/bulletin/2022-02-01

CVE:

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13112

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13113

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0706

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30309

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30317

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30318

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30322

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30323

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30326

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35068

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35069

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35074

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35075

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35077

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39616

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39619

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39631

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39635

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39658

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39662

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39663

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39664

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39665

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39666

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39668

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39669

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39671

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39672

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39674

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39675

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39676

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20024

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20025

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20026

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20027

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20028

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