MS-ISAC CYBERSECURITY ADVISORIES
MS-ISAC ADVISORY NUMBER:
Multiple Vulnerabilities in Google Chrome Could Allow for Arbitrary Code Execution
A vulnerability has been discovered in Microsoft Windows Object Linking and Embedding (OLE), which could allow for remote code execution. Windows OLE allows an application to link part of a document to another application of a different type for processing. This vulnerability exists when Windows OLE fails to properly validate user input. Successful exploitation of this vulnerability could result in an attacker gaining the same privileges as the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
THREAT INTELLIGENCE:There are currently no reports of these vulnerabilities being exploited in the wild.
- Google Chrome prior to version 50.0.2661.75
- Large and medium government entities: High
- Small government entities: Medium
- Large and medium business entities: High
- Small business entities: Medium
Home users: Low
Multiple vulnerabilities have been discovered in Google Chrome. These vulnerabilities can be triggered by a user visiting a specially crafted web page. Details of these vulnerabilities are as follows:
- A cross site scripting vulnerability exists in extension bindings.(CVE-2016-1652)A security vulnerability exists due to an out-of-bounds write error in V8. (CVE-2016-1653)
- A security vulnerability exists due to an out-of-bounds read error in Pdfium JPEG2000 decoding.(CVE-2016-1651)
- A security vulnerability exists due to an uninitialized memory read in Media. (CVE-2016-1654)A use-after-free vulnerability exists due to an error in Extensions. (CVE-2016-1655)
- A security-bypass vulnerability exists in the Android downloaded file path restriction. (CVE-2016-1656)A security vulnerability exists due to address bar spoofing. (CVE-2016-1657)An information-disclosure vulnerability exists in the Extensions. (CVE-2016-1658>)<
- Successful exploitation of these vulnerabilities could allow an attacker to execute arbitrary code in the context of the browser, obtain sensitive information, bypass security restrictions, or cause denial-of-service conditions.
We recommend the following actions be taken:
- Apply appropriate patches provided by Microsoft 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.