Document Title: =============== Microsoft SharePoint 2013 - Persistent Web Vulnerability References (Source): ==================== http://www.vulnerability-lab.com/get_content.php?id=812 Security Bulletin: MS13-067 http://technet.microsoft.com/de-de/security/bulletin/MS13-067 Microsoft Security Response Center (MSRC) ID: 14096 Release Date: ============= 2013-09-09 Vulnerability Laboratory ID (VL-ID): ==================================== 812 Common Vulnerability Scoring System: ==================================== 5.7 Product & Service Introduction: =============================== Microsoft SharePoint is a Web application platform developed by Microsoft. First launched in 2001, SharePoint has historically been associated with intranet content management and document management, but recent versions have significantly broader capabilities. Microsoft has two versions of SharePoint available at no cost, but it sells premium editions with additional functionality, and provides a cloud service edition as part of their Office 365 platform (previously BPOS). The product is also sold through a cloud model by many third-party vendors. SharePoint comprises a multipurpose set of Web technologies backed by a common technical infrastructure. By default, SharePoint has a Microsoft Office-like interface, and it is closely integrated with the Office suite. The web tools are designed to be usable by non- technical users. SharePoint can be used to provide intranet portals, document & file management, collaboration, social networks, extranets, websites, enterprise search, and business intelligence. It also has system integration, process integration, and workflow automation capabilities. Enterprise application software (e.g. ERP or CRM packages) often provide some SharePoint integration capability, and SharePoint also incorporates a complete development stack based on web technologies and standards-based APIs. As an application platform, SharePoint provides central management, governance, and security controls for implementation of these requirements. The SharePoint platform integrates directly into IIS - enabling bulk management, scaling, and provisioning of servers, as is often required by large organizations or cloud hosting providers. In 2008, the Gartner Group put SharePoint in the`leaders` quadrant in three of its Magic Quadrants (for search, portals, and enterprise content management). SharePoint is used by 78% of Fortune 500 companies[citation needed]. Between 2006 to 2011, Microsoft sold over 36.5 million user licenses[citation needed]. (Copy of the Homepage: http://en.wikipedia.org/wiki/Microsoft_SharePoint ) Abstract Advisory Information: ============================== The Vulnerability Laboratory Research Team discovered a persistent web vulnerability in the official Microsoft Sharepoint Online (cloud-based) application. Vulnerability Disclosure Timeline: ================================== 2013-02-01: Researcher Notification & Coordination (Benjamin Kunz Mejri) 2013-02-06: Vendor Notification (Microsoft Security Response Center - MSRC) 2013-02-07: Vendor Response/Feedback (Microsoft Security Response Center - MSRC) 2013-09-11: Vendor Fix/Patch (Microsoft Security Bulletin) 2013-09-11: Public Disclosure (Vulnerability Laboratory) Discovery Status: ================= Published Affected Product(s): ==================== Microsoft Corp. Product: Sharepoint Online (Cloud-Based) Exploitation Technique: ======================= Remote Severity Level: =============== Medium Technical Details & Description: ================================ A persistent input validation vulnerability is detected in the official Microsoft Sharepoint 2013 Online (cloud-based) web-application. The vulnerability allows remote attackers to inject own malicious script code to a vulnerable module on application-side (persistent). The vulnerability is located in the `Sharepoint Online Cloud 2013 Service` section when processing to request the `Berechtigungen für den Metadatenspeicher festlegen` module with manipulated ms-descriptionText - ctl00_PlaceHolderDialogBodySection_ PlaceHolderDialogBodyMainSection_ValSummary parameters. The persistent injected script code execution occurs in the main `invalid BDC Übereinstimmung` web application exception-handling. The vulnerability can be exploited with a low (restricted) privileged application user account and low or medium required user interaction. Successful exploitation of the vulnerability result in persistent session hijacking, persistent phishing, stable external redirect, stable external malware loads and persistent vulnerable module context manipulation. Vulnerable Service(s): [+] Microsoft - Sharepoint Online (cloud-based) Vulnerable Module(s): [+] Berechtigungen für den Metadatenspeicher festlegen - BDC Metadatenspeicher zuweisen Vulnerable Parameter(s): [+] ms-descriptionText - ctl00_PlaceHolderDialogBodySection_PlaceHolderDialogBodyMainSection_ValSummary [+] TA_ManageBDCPermissions_data Affected Module(s): [+] BDC Übereinstimmung - Exception Handling Proof of Concept (PoC): ======================= The persistent input validation web vulnerability can be exploited by remote attackers with low required user interaction and low privileged sharepoint cloud application user account. For demonstration or reproduce ... Review: Berechtigungen für den Metadatenspeicher festlegen - Summery > BDC Übereinstimmung > Exception (TA_ManageBDCPermissions_data)
Fehler beim Versuch, 'IMetadataCatalog' eine Zugriffssteuerungsliste mit dem Namen 'ApplicationRegistry' zuzuweisen. Mindestens ein Benutzer oder eine Gruppe in der Zugriffssteuerungsliste muss über das Recht 'SetPermissions' verfügen, um das Erstellen eines nicht verwaltbaren Objekts zu verhindern.
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