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Multiple Vulnerabilities in Google Chrome Could Allow for Arbitrary Code Execution

MS-ISAC ADVISORY NUMBER:

2020-016

DATE(S) ISSUED:

02/05/2020

OVERVIEW:

Multiple vulnerabilities have been discovered in Google Chrome, the most severe of which could allow for arbitrary code execution. Google Chrome is a web browser used to access the Internet. Successful exploitation of the most severe vulnerabilities could allow an attacker to execute arbitrary code in the context of the browser. Depending on the privileges associated with the application, an attacker could 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:

  • Google Chrome versions prior to 80.0.3987.87

RISK:

Government:
  • Large and medium government entities: HIGH
  • Small government entities: MEDIUM
Businesses:
  • Large and medium business entities: HIGH
  • Small business entities: MEDIUM
Home Users:
LOW

TECHNICAL SUMMARY:

Multiple vulnerabilities have been discovered in Google Chrome, the most severe of which could result in arbitrary code execution. These vulnerabilities can be exploited if a user visits, or is redirected to, a specially crafted web page. Details of the vulnerabilities are as follows:

  • Integer overflow in JavaScript (CVE-2020-6381)
  • Type Confusion in JavaScript (CVE-2020-6382)
  • Multiple vulnerabilities in XML (CVE-2019-18197)
  • Inappropriate implementation in SQLite (CVE-2019-19926)
  • Insufficient policy enforcement in storage (CVE-2020-6385)
  • Multiple vulnerabilities in SQLite (CVE-2019-19880)
  • Out of bounds write in WebRTC (CVE-2020-6387, CVE-2020-6389)
  • Out of bounds memory access in WebAudio (CVE-2020-6388)
  • Out of bounds memory access in streams (CVE-2020-6390)
  • Insufficient validation of untrusted input in Blink (CVE-2020-6391)
  • Insufficient policy enforcement in extensions (CVE-2020-6392)
  • Insufficient policy enforcement in Blink (CVE-2020-6393, CVE-2020-6394)
  • Out of bounds read in JavaScript (CVE-2020-6395)
  • Inappropriate implementation in Skia (CVE-2020-6396)
  • Incorrect security UI in sharing (CVE-2020-6397)
  • Uninitialized use in PDFium (CVE-2020-6398)
  • Insufficient policy enforcement in AppCache (CVE-2020-6399)
  • Inappropriate implementation in CORS (CVE-2020-6400)
  • Insufficient validation of untrusted input in Omnibox (CVE-2020-6401, CVE-2020-6411, CVE-2020-6412)
  • Insufficient policy enforcement in downloads (CVE-2020-6402)
  • Incorrect security UI in Omnibox (CVE-2020-6403)
  • Inappropriate implementation in Blink (CVE-2020-6404, CVE-2020-6413)
  • Out of bounds read in SQLite (CVE-2020-6405)
  • Use after free in audio (CVE-2020-6406)
  • Out of bounds memory access in SQLite (CVE-2019-19923)
  • Insufficient policy enforcement in CORS (CVE-2020-6408)
  • Inappropriate implementation in Omnibox (CVE-2020-6409)
  • Insufficient policy enforcement in navigation (CVE-2020-6410)
  • Insufficient policy enforcement in Safe Browsing (CVE-2020-6414)
  • Inappropriate implementation in JavaScript (CVE-2020-6415)
  • Insufficient data validation in streams (CVE-2020-6416)
  • Inappropriate implementation in installer (CVE-2020-6417)

Successful exploitation of the most severe of these vulnerabilities could allow an attacker to execute arbitrary code in the context of the browser, obtain sensitive information, bypass security restrictions and perform unauthorized actions, or cause denial-of-service conditions.

RECOMMENDATIONS:

We recommend the following actions be taken:

  • Apply the stable channel update provided by Google to vulnerable systems immediately after appropriate testing.
  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.
  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.
  • Inform and educate users regarding the threats posed by hypertext links contained in emails or attachments especially from un-trusted sources.
  • Apply the Principle of Least Privilege to all systems and services.

REFERENCES:

CVE:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18197 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19880 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19923 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19926 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6381 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6382 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6385 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6387 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6388 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6389 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6390 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6391 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6392 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6393 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6394 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6395 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6396 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6397 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6398 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6399 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6400 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6401 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6402 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6403 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6404 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6405 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6406 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6408 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6409 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6410 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6411 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6412 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6413 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6414 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6415 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6416 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6417

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