Multiple Vulnerabilities in Google Chrome Could Allow for Arbitrary Code Execution

ITS Advisory Number: 
2017-071 - UPDATED
Date(s) Issued: 
Wednesday, July 26, 2017
Date Updated: 
Thursday, August 17, 2017
Subject: 
Multiple Vulnerabilities in Google Chrome Could Allow for Arbitrary Code Execution
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. These vulnerabilities can be exploited if a user visits, or is redirected to, a specially crafted web page. 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.

Threat Intelligence:

There are currently no reports of these vulnerabilities being exploited in the wild.

AUGUST 17, 2017 - UPDATED THREAT INTELLIGENCE:

An additional vulnerability has been discovered in Google Chrome, which could allow for remote code execution. Proof of Concept code is available that reproduces the vulnerability. Affected versions of Google Chrome are 59 and earlier. Google announced no patches will be provided for this vulnerability and the only mitigation is to upgrade to the current and latest version, version 60.

Systems Affected: 
  • Google Chrome prior to 60.0.3112.78
RISK
GOVERNMENT
Large and medium government entities: 
High
Small government entities: 
Medium
BUSINESS
Large and medium business entities: 
High
Small business entities: 
Medium
Home Users: 
Low
Description: 

Multiple vulnerabilities have been discovered in Google Chrome, the most severe of which could allow for 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:

  • Use after free in IndexedDB. (CVE-2017-5091)
  • Use after free in PPAPI. (CVE-2017-5092)
  • UI spoofing in Blink. (CVE-2017-5093)
  • Type confusion in extensions. (CVE-2017-5094)
  • Out-of-bounds write in PDFium. (CVE-2017-5095)
  • User information leak via Android intents. (CVE-2017-5096)
  • Out-of-bounds read in Skia. (CVE-2017-5097)
  • Use after free in V8. (CVE-2017-5098)
  • Out-of-bounds write in PPAPI. (CVE-2017-5099)
  • Use after free in Chrome Apps. (CVE-2017-5100)
  • URL spoofing in OmniBox. (CVE-2017-5101)
  • Uninitialized use in Skia. (CVE-2017-5102)
  • Uninitialized use in Skia. (CVE-2017-5103)
  • UI spoofing in browser. (CVE-2017-5104)
  • Pointer disclosure in SQLite. (CVE-2017-7000)
  • URL spoofing in OmniBox. (CVE-2017-5105)
  • URL spoofing in OmniBox. (CVE-2017-5106)
  • User information leak via SVG. (CVE-2017-5107)
  • Type confusion in PDFium. (CVE-2017-5108)
  • UI spoofing in browser. (CVE-2017-5109)
  • UI spoofing in payments dialog. (CVE-2017-5110)

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.

Actions: 
  • After appropriate testing, immediately apply appropriate patches provided by Google to vulnerable systems.
  • 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: 

Google:

https://chromereleases.googleblog.com/2017/07/stable-channel-update-for-desktop.html

CVE: 

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5091

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5092

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5093

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5094

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5095

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5096

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5097

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5098    

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5099

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5100

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5101

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5102

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5103

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5104

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5105

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5106

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5107

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5108

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5109

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5110

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7000

 
 

AUGUST 17, 2017 - UPDATED REFERENCES:

Securiteam:

https://blogs.securiteam.com/index.php/archives/3379

Helpnetsecurity:

https://www.helpnetsecurity.com/2017/08/17/google-chrome-remote-code-execution-flaw/