Security restrictions bypass in Microsoft Edge and Microsoft Internet Explorer - CVE-2016-7281

Vulnerability identifier: #VU4242

CSH Severity: Medium

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2016-7281

CWE-ID: CWE-264

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to Microsoft browsers fail to correctly apply Same Origin Policy for scripts running inside Web Workers. A remote attacker can create a specially crafted web page, trick the victim into visiting it and bypass implied Same Origin Policy.

Successful exploitation of the vulnerability may allow an attacker to obtain potentially sensitive information and perform other attacks against victim.

Microsoft Edge
Microsoft Internet Explorer

Install update from Microsoft website.

• https://technet.microsoft.com/en-us/library/security/ms16-145.aspx
• https://technet.microsoft.com/en-us/library/security/ms16-144.aspx

• Multiple vulnerabilities in Microsoft Internet Explorer and Microsoft Edge
• Microsoft Browser Security Feature Bypass Vulnerability