Multiple Vulnerabilities in Google Android OS Could Allow for Remote Code Execution

MS-ISAC ADVISORY NUMBER:

2021-002

DATE(S) ISSUED:

01/04/2021

OVERVIEW:

Multiple vulnerabilities have been discovered in the Google Android operating system (OS), the most severe of which could allow for remote code execution. 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 remote code execution within the context of a privileged process. 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 January 5, 2021

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:
HIGH

TECHNICAL SUMMARY:

Multiple vulnerabilities have been discovered in Google Android OS, the most severe of which could allow for remote code execution within the context of a privileged process. Details of these vulnerabilities are as follows:

  • Multiple vulnerabilities in Framework that could allow for Escalation of Privileges (CVE-2021-0303, CVE-2021-0306, CVE-2021-0307, CVE-2021-0310, CVE-2021-0315, CVE-2021-0317, CVE-2021-0318, CVE-2021-0319)
  • A vulnerability in Framework that could allow for Remote Code Execution (CVE-2020-15999)
  • Multiple vulnerabilities in Framework that could allow for Information Disclosure (CVE-2021-0304, CVE-2021-0309, CVE-2021-0321, CVE-2021-0322)
  • Multiple vulnerabilities in Framework that could allow for Denial of Service (CVE-2021-0313, CVE-2019-9376)
  • A vulnerability in Media Framework that could allow for Remote Code Execution (CVE-2016-6328)
  • Multiple vulnerabilities in Media Framework that could allow for Information Disclosure (CVE-2021-0311, CVE-2021-0312)
  • Multiple vulnerabilities in System that could allow for Escalation of Privileges (CVE-2020-0471, CVE-2021-0308)
  • A vulnerability in System that could allow for Remote Code Execution (CVE-2021-0316)
  • A vulnerability in System that could allow for Information Disclosure (CVE-2021-0320)
  • Multiple vulnerabilities in Kernel components that could allow for Information Disclosure (CVE-2020-10732, CVE-2020-10766, CVE-2021-0323)
  • A high severity vulnerability in MediaTek components (CVE-2021-0301)
  • Multiple high severity vulnerabilities in Qualcomm components (CVE-2020-11233, CVE-2020-11239, CVE-2020-11240, CVE-2020-11250, CVE-2020-11261, CVE-2020-11262)
  • Multiple critical severity vulnerabilities in Qualcomm closed-source components (CVE-2020-11134, CVE-2020-11182)
  • Multiple high severity vulnerabilities in Qualcomm closed-source components (CVE-2020-11126, CVE-2020-11159, CVE-2020-11181, CVE-2020-11235, CVE-2020-11238, CVE-2020-11241, CVE-2020-11260)

Successful exploitation of the most severe of these vulnerabilities could allow for remote code execution within the context of a privileged process. 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:

CVE:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6328 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9376 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-0471 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10732 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10766 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11126 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11134 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11159 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11181 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11182 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11233 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11235 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11238 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11239 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11240 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11241 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11250 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11260 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11261 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11262 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15999 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0301 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0303 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0304 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0306 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0307 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0308 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0309 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0310 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0311 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0312 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0313 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0315 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0316 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0317 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0318 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0319 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0320 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0321 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0322 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0323

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