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

MS-ISAC ADVISORY NUMBER:

2021-017

DATE(S) ISSUED:

02/02/2021

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 February 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:

  • An elevation of privilege vulnerability in Kernel components. (CVE-2017-18509)
  • An elevation of privilege vulnerability in Media Framework. (CVE-2021-0332)
  • An arbitrary code vulnerability in Media Framework. (CVE-2021-0325)
  • An information disclosure vulnerability in Media Framework. (CVE-2021-0335)
  • An information disclosure vulnerability in Android runtime. (CVE-2021-0341)
  • A denial of service vulnerabilities in Framework. (CVE-2021-0338)
  • Multiple elevation of privilege vulnerabilities in Framework. (CVE-2021-0302, CVE-2021-0305, CVE-2021-0314, CVE-2021-0327, CVE-2021-0330, CVE-2021-0334, CVE-2021-0337, CVE-2021-0339, CVE-2021-0340)
  • An arbitrary code vulnerability in System. (CVE-2021-0326)
  • Multiple elevation of privilege vulnerabilities in System. (CVE-2021-0328, CVE-2021-0329, CVE-2021-0331, CVE-2021-0333, CVE-2021-0336)
  • Multiple vulnerabilities in Google Play system updates (CVE-2021-0311, CVE-2021-0312)
  • Multiple high severity vulnerabilities in Kernel components (CVE-2020-10732, CVE-2020-10766, CVE-2020-10767)
  • A high severity vulnerabilities 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 high severity vulnerabilities in Qualcomm closed-source components (CVE-2020-11134, CVE-2020-11182, 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-2017-18509 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-2020-10767 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-2021-0301 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0302 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0305 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-2021-0314 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0325 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0326 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0327 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0328 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0329 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0330 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0331 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0332 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0333 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0334 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0335 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0336 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0337 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0338 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0339 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0340 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0341

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