==================================================================== CERT-Renater Note d'Information No. 2017/VULN062 _____________________________________________________________________ DATE : 15/03/2017 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Windows versions 10, Server 2016 running Edge. ===================================================================== KB4013071 https://technet.microsoft.com/en-us/library/security/MS17-007 ____________________________________________________________________ Microsoft Security Bulletin MS17-007: Security Update for Microsoft Edge (4013071) Bulletin Number: MS17-007 Bulletin Title: Security Update for Microsoft Edge Severity: Critical KB Article: 4013071 Version: 1.0 Published Date: 14/03/2017 Executive Summary This security update resolves vulnerabilities in Microsoft Edge. The most severe of the vulnerabilities could allow remote code execution if a user views a specially crafted webpage using Microsoft Edge. An attacker who successfully exploited these vulnerabilities could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. This security update is rated Critical for Microsoft Edge on Windows 10 and Moderate on Windows Server 2016. For more information, see the Affected Software section. The update addresses the vulnerabilities by modifying how Microsoft Edge handles objects in memory. For more information about these vulnerabilities, see the Vulnerability Information section. For more information about this update, see Microsoft Knowledge Base Article 4013071. Affected Software Windows 10 Windows Server 2016 Windows 10 and Windows Server 2016 updates are cumulative. The monthly security release includes all security fixes for vulnerabilities that affect Windows 10, in addition to non-security updates. The updates are available via the Microsoft Update Catalog. Please note that effective December 13, 2016, Windows 10 and Windows Server 2016 details for the Cumulative Updates will be documented in Release Notes. Please refer to the Release Notes for OS Build numbers, Known Issues, and affected file list information. Update FAQ The PDF Library vulnerability discussed in this bulletin is also discussed in the Windows PDF bulletin (MS17-009) being released in March. To be protected from the vulnerability, do I need to install multiple updates for my particular system and Microsoft Edge configuration? No. Customers running Windows 10 systems only need to install the one cumulative update for their system to be protected from CVE-2017-0023. The PDF library vulnerability appears in the Microsoft Edge bulletin because on Windows 10 systems the security fix for this vulnerability resides in the Microsoft Edge component that is shipping in the cumulative update. Severity Ratings and Vulnerability Identifiers The following severity ratings assume the potential maximum impact of the vulnerability. For information regarding the likelihood, within 30 days of this security bulletin's release, of the exploitability of the vulnerability in relation to its severity rating and security impact, please see the Exploitability Index in the March bulletin summary. Where specified in the Severity Ratings and Impact table, Critical, Important, and Moderate values indicate severity ratings. For more information, see Security Bulletin Severity Rating System. Refer to the following key for the abbreviations used in the table to indicate maximum impact: Abbreviation Maximum Impact RCE Remote Code Execution EoP Elevation of Privilege ID Information Disclosure SFB Security Feature Bypass Vulnerability Severity Ratings and Impact CVE number Vulnerability Title Microsoft Edge CVE-2017-0009 Microsoft Browser Information Windows Clients: Disclosure Vulnerability Important / ID Windows Servers: Low / ID CVE-2017-0010 Scripting Engine Memory Windows Clients: Corruption Vulnerability Critical / RCE Windows Servers: Moderate / RCE CVE-2017-0011 Microsoft Edge Information Windows Clients: Disclosure Vulnerability Important / ID Windows Servers: Low / ID CVE-2017-0012 Microsoft Browser Spoofing Windows Clients: Vulnerability Important / Spoofing Windows Servers: Low / Spoofing CVE-2017-0015 Scripting Engine Memory Windows Clients: Corruption Vulnerability Critical / RCE Windows Servers: Moderate / RCE CVE-2017-0017 Microsoft Edge Information Windows Clients: Disclosure Vulnerability Important / ID Windows Servers: Low / ID CVE-2017-0023 Microsoft PDF Memory Windows Clients: Corruption Vulnerability Critical / RCE Windows Servers: Moderate / RCE CVE-2017-0032 Scripting Engine Memory Windows Clients: Corruption Vulnerability Critical / RCE Windows Servers: Moderate / RCE CVE-2017-0033 Microsoft Browser Spoofing Windows Clients: Vulnerability Important / Spoofing Windows Servers: Low / Spoofing CVE-2017-0034 Microsoft Edge Memory Windows Clients: Corruption Vulnerability Critical / RCE (Only Windows 10 version 1607 is affected) Windows Servers: Moderate / RCE CVE-2017-0035 Scripting Engine Memory Windows Clients: Corruption Vulnerability Critical / RCE Windows Servers: Moderate / RCE CVE-2017-0037 Microsoft Browser Memory Windows Clients: Corruption Vulnerability Critical / RCE Windows Servers: Moderate / RCE CVE-2017-0065 Microsoft Browser Information Windows Clients: Disclosure Vulnerability Important / ID Windows Servers: Low / ID CVE-2017-0066 Microsoft Edge Security Windows Clients: FeatureBypass Vulnerability Important / SFB Windows Servers: Low / SFB CVE-2017-0067 Scripting Engine Memory Windows Clients: Corruption Vulnerability Critical / RCE Windows Servers: Moderate / RCE CVE-2017-0068 Microsoft Edge Information Windows Clients: Disclosure Vulnerability Important / ID Windows Servers: Low / ID CVE-2017-0069 Microsoft Edge Spoofing Windows Clients: Vulnerability Important / Spoofing Windows Servers: Low / Spoofing CVE-2017-0070 Scripting Engine Memory Windows Clients: Corruption Vulnerability Critical / RCE Windows Servers: Moderate / RCE CVE-2017-0071 Scripting Engine Memory Windows Clients: Corruption Vulnerability Critical / RCE (Only Windows 10 versions 1511 and 1607 are affected) Windows Servers: Moderate / RCE CVE-2017-0094 Scripting Engine Memory Windows Clients: Corruption Vulnerability Critical / RCE Windows Servers: Moderate / RCE CVE-2017-0131 Scripting Engine Memory Windows Clients: Corruption Vulnerability Important / RCE Windows Servers: Low / RCE CVE-2017-0132 Scripting Engine Memory Windows Clients: Corruption Vulnerability Critical / RCE Windows Servers: Moderate / RCE CVE-2017-0133 Scripting Engine Memory Windows Clients: Corruption Vulnerability Critical / RCE (Only Windows 10 versions 1511 and 1607 are affected) Windows Servers: Moderate / RCE CVE-2017-0134 Scripting Engine Memory Windows Clients: Corruption Vulnerability Critical / RCE Windows Servers: Moderate / RCE CVE-2017-0135 Microsoft Edge Security Windows Clients: Feature Bypass Important / SFB Windows Servers: Low / SFB CVE-2017-0136 Scripting Engine Memory Windows Clients: Corruption Vulnerability Critical / RCE (Only Windows 10 version 1607 is affected) CVE-2017-0137 Scripting Engine Memory Windows Clients: Corruption Vulnerability Critical / RCE Windows Servers: Moderate / RCE CVE-2017-0138 Scripting Engine Memory Windows Clients: Corruption Vulnerability Critical / RCE Windows Servers: Moderate / RCE CVE-2017-0140 Microsoft Edge Security Windows Clients: Feature Bypass Important / SFB (Only Windows 10 version 1607 is affected) Windows Servers: Low / SFB CVE-2017-0141 Scripting Engine Memory Windows Clients: Corruption Vulnerability Critical / RCE Windows Servers: Moderate / RCE CVE-2017-0150 Scripting Engine Memory Windows Clients: Corruption Vulnerability Critical / RCE (Only Windows 10 version 1607 is affected) Windows Servers: Moderate / RCE CVE-2017-0151 Scripting Engine Memory Windows Clients: Corruption Vulnerability Critical / RCE (Only Windows 10 version 1607 is affected) Windows Servers: Moderate / RCE Vulnerability Information Multiple Microsoft Scripting Engine Memory Corruption Vulnerabilities Remote code execution vulnerabilities exist in the way affected Microsoft scripting engines render when handling objects in memory in Microsoft browsers. These vulnerabilities could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited these vulnerabilities could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited these vulnerabilities could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit these vulnerabilities through a Microsoft browser 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 Edge 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. The security update addresses these vulnerabilities by modifying how the affected Microsoft scripting engines handle objects in memory. Mitigating Factors Microsoft has not identified any mitigating factors for these vulnerabilities. Workarounds Microsoft has not identified any workarounds for these vulnerabilities. Multiple Microsoft Edge Information Disclosure Vulnerabilities Multiple information disclosure vulnerabilities exist in the way that the affected components handle objects in memory. An attacker who successfully exploited these vulnerabilities could obtain information to further compromise a target system. In a web-based attack scenario, an attacker could host a website that is used to attempt to exploit the vulnerabilities. Additionally, compromised websites and websites that accept or host user-provided content could contain specially crafted content that could be used to exploit these vulnerabilities. However, in all cases, an attacker would have no way to force users to view attacker-controlled content. Instead, an attacker would have to convince users to take action. For example, an attacker could trick users into clicking a link that takes them to the attacker's site. The security update addresses these vulnerabilities by correcting how the affected components handle objects in memory. Mitigating Factors Microsoft has not identified any mitigating factors for these vulnerabilities. Workarounds Microsoft has not identified any workarounds for these vulnerabilities. Multiple Microsoft Edge Spoofing Vulnerabilities Spoofing vulnerabilities exist when a Microsoft browser does not properly parse HTTP responses. An attacker who successfully exploited these vulnerabilities could trick a user by redirecting them to a specially crafted website. The specially crafted website could spoof content or be used as a pivot to chain an attack with other vulnerabilities in web services. To exploit these vulnerabilities, the user must click a specially crafted URL. In an email attack scenario, an attacker could send an email message containing the specially crafted URL to the user in an attempt to convince the user to click it. In a web-based attack scenario, an attacker could host a specially crafted website designed to appear as a legitimate website to the user. However, the attacker would have no way to force the user to visit the specially crafted website. The attacker would have to convince the user to visit the specially crafted website, typically by way of enticement in an email or Instant Messenger message, and then convince the user to interact with content on the website. The update addresses these vulnerabilities by correcting how Microsoft browsers parse HTTP responses. Mitigating Factors Microsoft has not identified any mitigating factors for these vulnerabilities. Workarounds Microsoft has not identified any workarounds for these vulnerabilities. Microsoft Browser Memory Corruption Vulnerability CVE-2017-0037 A remote code execution vulnerability exists when Microsoft Edge improperly accesses objects in memory. The vulnerability could corrupt memory that enables an attacker to execute arbitrary code in the context of the current user. An attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge, and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements by adding specially crafted content that could exploit the vulnerability. In all cases, however, an attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action, typically by way of enticement in an email or Instant Messenger message, or by getting them to open an attachment sent through email. In order to effect full code execution, an adversary would also need to combine this vulnerability with other exploits. An attacker who successfully combined multiple vulnerabilities to create an exploit chain could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. The update addresses the vulnerability by modifying how Microsoft Edge handles objects in memory. Mitigating Factors Microsoft has not identified any mitigating factors for this vulnerability. Workarounds Microsoft has not identified any workarounds for this vulnerability. Microsoft PDF Memory Corruption Vulnerability CVE 2017-0023 A remote code execution vulnerability exists when Microsoft Windows PDF Library improperly handles objects in memory. The vulnerability could corrupt memory in a way that enables an attacker to execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit the vulnerability on Windows 10 systems with Microsoft Edge set as the default browser, an attacker could host a specially crafted website that contains malicious PDF content and then convince users to view the website. The attacker could also take advantage of compromised websites, or websites that accept or host user-provided content or advertisements, by adding specially crafted PDF content to such sites. Only Windows 10 systems with Microsoft Edge set as the default browser can be compromised simply by viewing a website. The browsers for all other affected operating systems do not automatically render PDF content, so an attacker would have no way to force users to view attacker- controlled content. Instead, an attacker would have to convince users to open a specially crafted PDF document, typically by way of an enticement in an email or instant message or by way of an email attachment. The update addresses the vulnerability by modifying how affected systems handle objects in memory. Mitigating Factors Microsoft has not identified any mitigating factors for this vulnerability. Workarounds Microsoft has not identified any workarounds for this vulnerability. Multiple Microsoft Edge Security Feature Bypass Vulnerabilities Multiple security feature bypass vulnerabilities exist when Microsoft Edge fails to correctly apply Same Origin Policy for HTML elements present in other browser windows. An attacker could trick a user into loading a page with malicious content. To exploit these vulnerabilities, an attacker would need to trick a user into loading a page or visiting a site. The page could also be injected into a compromised site or ad network. The update addresses these vulnerabilities by correcting the Same Origin Policy check for scripts attempting to manipulate HTML elements in other browser windows. Mitigating Factors Microsoft has not identified any mitigating factors for these vulnerabilities. Workarounds Microsoft has not identified any workarounds for these vulnerabilities. Microsoft Edge Memory Corruption Vulnerability - CVE-2017-0034 A remote code execution vulnerability exists when Microsoft Edge improperly accesses objects in memory. The vulnerability could corrupt memory in a way that enables an attacker to execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. An attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge, and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements by adding specially crafted content that could exploit the vulnerability. In all cases, however, an attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action, typically by way of an enticement in an email or instant message, or by getting them to open an email attachment. The update addresses the vulnerability by modifying how Microsoft Edge handles objects in memory. Mitigating Factors Microsoft has not identified any mitigating factors for the vulnerability. Workarounds Microsoft has not identified any workarounds for the vulnerability. Security Update Deployment For Security Update Deployment information, see the Microsoft Knowledge Base article referenced here in the Executive Summary. Acknowledgments Microsoft recognizes the efforts of those in the security community who help us protect customers through coordinated vulnerability disclosure. See Acknowledgments for more information. Disclaimer The information provided in the Microsoft Knowledge Base is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. 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