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

MS-ISAC ADVISORY NUMBER:

2021-060

DATE(S) ISSUED:

05/04/2021

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.

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 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-2021-0472, CVE-2021-0485, CVE-2021-0487, CVE-2019-2219)
  • A vulnerability in Media Framework that could allow for Escalation of Privilege (CVE-2021-0482)
  • A vulnerability in Media Framework that could allow for Information Disclosure (CVE-2021-0484)
  • Multiple vulnerabilities in System that could allow for Remote Code Execution (CVE-2021-0473, CVE-2021-0474, CVE-2021-0475)
  • Multiple vulnerabilities in System that could allow for Escalation of Privilege (CVE-2021-0476, CVE-2021-0477, CVE-2021-0481)
  • Multiple vulnerabilities in System that could allow for Information Disclosure (CVE-2021-0466, CVE-2021-0480)
  • A vulnerability in Kernel Components that could allow for Escalation of Privilege (CVE-2020-29661)
  • A Critical severity vulnerability in AMLogic components (CVE-2021-0467)
  • Multiple High severity vulnerabilities in ARM components (CVE-2021-28663, CVE-2021-28664)
  • Multiple High severity vulnerabilities in MediaTek components (CVE-2021-0489, CVE-2021-0490, CVE-2021-0491, CVE-2021-0492, CVE-2021-0493, CVE-2021-0494, CVE-2021-0495, CVE-2021-0496, CVE-2021-0497, CVE-2021-0498)
  • A High severity vulnerability in Unisoc components (CVE-2021-0324)
  • Multiple High severity vulnerabilities in Qualcomm components (CVE-2021-1891, CVE-2021-1905, CVE-2021-1927)
  • A Moderate severity vulnerability in Qualcomm components (CVE-2021-1906)
  • Multiple High severity vulnerabilities in Qualcomm closed-source components (CVE-2020-11273, CVE-2020-11274, CVE-2020-11279, CVE-2020-11284, CVE-2020-11285, CVE-2020-11288, CVE-2020-11289, CVE-2021-1910, CVE-2021-1915)

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-2019-2219 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11273 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11274 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11279 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11284 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11285 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11288 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11289 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29661 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0324 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0466 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0467 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0472 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0473 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0474 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0475 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0476 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0477 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0480 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0481 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0482 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0484 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0485 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0487 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0489 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0490 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0491 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0492 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0493 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0494 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0495 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0496 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0497 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0498 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1891 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1905 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1906 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1910 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1915 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1927 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28663 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28664

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