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

MS-ISAC ADVISORY NUMBER:

2022-002

DATE(S) ISSUED:

01/05/2022

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, 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 remote code execution within the context of a privileged process. Details of these vulnerabilities are as follows:

  • Multiple vulnerabilities in Framework, the most severe of which could enable a local malicious application to bypass user interaction requirements in order to gain access to additional permissions. (CVE-2021-39630, CVE-2021-39632, CVE-2020-0338, CVE-2021-0934)
  • A vulnerability in Media Framework that could lead to remote escalation of privilege with no additional execution privileges or user interaction needed. (CVE-2021-39623)
  • Multiple vulnerabilities in System, the most severe of which could enable a local privileged attacker to install existing packages without requiring user consent. (CVE-2021-39618, CVE-2021-39620, CVE-2021-39621, CVE-2021-39622, CVE-2021-39625, CVE-2021-39626, CVE-2021-39627, CVE-2021-39629, CVE-2021-0643, CVE-2021-39628, CVE-2021-39659)
  • A vulnerability in Android Runtime that could enable a local attacker to bypass memory restrictions in order to gain access to additional permissions. (CVE-2021-0959)
  • Multiple vulnerabilities in Kernel components, the most severe of which could lead to a local escalation of privilege due to a race condition, with no additional execution privileges or user interaction needed. (CVE-2020-29368, CVE-2021-39634, CVE-2021-39633)
  • Multiple vulnerabilities in MediaTek components. (CVE-2021-31345, CVE-2021-31346, CVE-2021-31890, CVE-2021-40148, CVE-2021-31889)
  • A vulnerability in Unisoc components. (CVE-2021-1049)
  • Multiple high severity vulnerabilities in Qualcomm components. (CVE-2021-30319, CVE-2021-30353)
  • Multiple high and critical severity vulnerabilities in Qualcomm closed-source components. (CVE-2021-30285, CVE-2021-30287, CVE-2021-30300, CVE-2021-30301, CVE-2021-30307, CVE-2021-30308, CVE-2021-30311)

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-2020-0338 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29368 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0643 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0934 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0959 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1049 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30285 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30287 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30300 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30301 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30307 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30308 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30311 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30319 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30353 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31345 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31346 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31889 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31890 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39618 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39620 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39621 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39622 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39623 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39625 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39626 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39627 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39628 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39629 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39630 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39632 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39633 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39634 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39659 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40148

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