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<< Back VID 26731 Severity 40 Port 139,445 Protocol TCP Class SMB Detailed Description The Hotfix (MS15-106, 3096441) for 'Security Update for Internet Explorer' has not been applied. This security update resolves vulnerabilities in Internet Explorer. The most severe of the vulnerabilities could allow remote code execution if a user views a specially crafted webpage using Internet Explorer. An attacker who successfully exploited these vulnerabilities could gain the same user rights as the current user. Customers whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights. Multiple Internet Explorer Memory Corruption Vulnerabilities Remote code execution vulnerabilities exist when Internet Explorer improperly accesses objects in memory. These vulnerabilities could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. Multiple Scripting Engine Memory Corruption Vulnerabilities Remote code execution vulnerabilities exist in the way that the VBScript and JScript engines, when handling objects in memory in Internet Explorer, render. In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerabilities through Internet Explorer and then convince a user to view the website. An attacker could also embed an ActiveX control marked "safe for initialization" in an application or Microsoft Office document that hosts the IE rendering engine. The attacker could also take advantage of compromised websites, and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerabilities. Multiple Internet Explorer Elevation of Privilege Vulnerabilities Elevation of privilege vulnerabilities exist when Internet Explorer does not properly validate permissions under specific conditions, potentially allowing a script to be run with elevated privileges. Internet Explorer Information Disclosure Vulnerability - CVE-2015-6053 An information disclosure vulnerability exists when Internet Explorer improperly discloses the contents of its memory. VBScript and JScript ASLR Bypass - CVE-2015-6052 A security feature bypass exists when the VBScript and JScript engines fail to use the Address Space Layout Randomization (ASLR) security feature, allowing an attacker to more reliably predict the memory offsets of specific instructions in a given call stack. The security feature bypass by itself does not allow arbitrary code execution. However, an attacker could use the ASLR bypass in conjunction with another vulnerability, such as a remote code execution vulnerability, that could take advantage of the ASLR bypass to more reliably run arbitrary code on a target system. Scripting Engine Information Disclosure Vulnerability - CVE-2015-6059 An information disclosure vulnerability exists when JScript or VBScript improperly discloses the contents of its memory, which could provide an attacker with information to further compromise the user's computer or data. * Note: This check requires an account with administrative privileges which can log into the host to scan. Absence of this condition will result in the check not being performed and a False Negative for all vulnerable hosts. * References: https://technet.microsoft.com/en-us/library/security/ms15-106 * Platforms Affected: Internet Explorer 7 Internet Explorer 8 Internet Explorer 9 Internet Explorer 10 Internet Explorer 11 Recommendation Apply the appropriate patch(3096441) for your system, as listed in Microsoft Security Bulletin MS15-106 at https://technet.microsoft.com/en-us/library/security/ms15-106 -- OR -- Patches for Windows platforms are also available from the Microsoft Windows Update Web site, http://windowsupdate.microsoft.com. Windows Update detects what version of Windows you are running and offers the appropriate patch. Related URL CVE-2015-2482,CVE-2015-6042,CVE-2015-6044,CVE-2015-6046,CVE-2015-6047,CVE-2015-6048,CVE-2015-6049,CVE-2015-6050,CVE-2015-6051,CVE-2015-6052 (CVE) Related URL 86367 (SecurityFocus) Related URL (ISS)