Microsoft SharePoint contains a vulnerability that could allow an unauthenticated, remote attacker to gain unauthorized access to an affected system. Updates are available.
Microsoft SharePoint contains a vulnerability that could allow an unauthenticated, remote attacker to gain unauthorized access to an affected system.
The vulnerability is due to insufficient validation of user-supplied input. An unauthenticated, remote attacker could exploit this vulnerability by convincing a user on a targeted system to visit a crafted URL. If successful, the attacker could gain unauthorized access to sensitive information, which could be used to elevate privileges on the system.
Microsoft confirmed the vulnerability in a security bulletin and released software updates.
The following Microsoft products are affected:
Microsoft SharePoint Server 2010 SP1
Microsoft SharePoint Foundation 2010 SP1
To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link.
Microsoft has corrected this vulnerability by modifying the way Microsoft SharePoint performs validation and sanitization of user input.
Microsoft has released a security bulletin at the following link: MS13-024
An unauthenticated, remote attacker could exploit this vulnerability to access sensitive information on a targeted system. This information could be use to elevate privileges, which could be used to conduct further attacks on the system.
The vulnerability is due to insufficient validation of user-supplied input processed by the affected software.
An unauthenticated, remote attacker could exploit this vulnerability by convincing a user on a targeted system to visit a crafted URL. Successful exploitation could allow the attacker to gain unauthorized access to sensitive information or perform actions on the system on behalf of the user.
Administrators are advised to apply the appropriate updates.
Users are advised not to open e-mail messages from suspicious or unrecognized sources. If users cannot verify that links or attachments included in e-mail messages are safe, they are advised not to open them.
Administrators may consider using the Microsoft Baseline Security Analyzer (MBSA) scan tool to identify common security misconfigurations and missing security updates on system endpoints.
Administrators are advised to monitor affected systems.
Microsoft customers can obtain updates directly by using the links in the security bulletin. These updates are also distributed by Windows automatic update features and available on the Microsoft Update service. Microsoft Windows Server Update Services (WSUS), Systems Management Server, and System Center Configuration Manager can assist administrators in deploying software updates.
The security vulnerability applies to the following combinations of products.
Office SharePoint Server
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