CVE-2013-3895 in SharePoint Server
Summary
by MITRE
Microsoft SharePoint Server 2007 SP3 and 2010 SP1 and SP2 allows remote attackers to conduct clickjacking attacks via a crafted web page, aka "Parameter Injection Vulnerability."
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Analysis
by VulDB Data Team • 05/26/2021
The vulnerability identified as CVE-2013-3895 represents a critical security flaw in Microsoft SharePoint Server versions 2007 SP3 and 2010 SP1 and SP2 that enables remote attackers to execute clickjacking attacks through maliciously crafted web pages. This vulnerability falls under the category of web application security issues and specifically relates to the improper handling of user interactions within the SharePoint interface. The flaw allows attackers to manipulate user sessions by overlaying transparent or opaque web elements to deceive users into performing unintended actions on the SharePoint server.
The technical implementation of this vulnerability stems from the SharePoint server's insufficient validation and sanitization of parameters within web requests. When users navigate to compromised web pages, the malicious code can exploit the parameter injection mechanism to manipulate how SharePoint processes user inputs and interactions. This creates an environment where attackers can craft web pages that appear legitimate to users while secretly executing unauthorized commands or actions on behalf of the authenticated user. The vulnerability is particularly dangerous because it leverages the trust relationship between the user and the SharePoint server, making it difficult for users to distinguish between legitimate and malicious interactions.
From an operational impact perspective, this vulnerability poses significant risks to organizations relying on SharePoint for document management, collaboration, and content sharing. Attackers could potentially gain unauthorized access to sensitive data, modify or delete content, manipulate user permissions, or escalate privileges within the SharePoint environment. The clickjacking attack vector allows for sophisticated social engineering campaigns where users might be tricked into performing actions such as changing their passwords, granting administrative rights to malicious users, or accessing confidential documents. The attack requires minimal technical expertise from the attacker while potentially yielding substantial damage to organizational security posture and data integrity.
Organizations should implement multiple layers of defense to mitigate this vulnerability including immediate patch deployment for the affected SharePoint versions, implementation of frame-busting techniques to prevent clickjacking attacks, and enhanced web application firewalls that can detect and block malicious parameter injection attempts. The vulnerability aligns with CWE-1021, which describes improper restriction of operations within a limited context, and maps to ATT&CK technique T1059.001 for command and scripting interpreter. Additionally, organizations should conduct regular security assessments and user awareness training to recognize potential clickjacking attempts and maintain up-to-date security configurations to prevent exploitation of such parameter injection vulnerabilities in web applications.