SynopsisThe remote Windows host is affected by multiple vulnerabilities.
DescriptionThe remote Windows host has a version of Microsoft Office, Excel, Excel Viewer, SharePoint Server, Microsoft Office Compatibility Pack, or Microsoft Office Web Apps installed that is affected by multiple vulnerabilities :
- Multiple remote code execution vulnerabilities exist due to improper handling of objects in memory. A remote attacker can exploit these vulnerabilities by convincing a user to open a specially crafted file, resulting in execution of arbitrary code in the context of the current user. (CVE-2015-2555, CVE-2015-2557, CVE-2015-2558)
- An information disclosure vulnerability exists in the SharePoint InfoPath Forms Services due to improper parsing of document type definitions (DTD) in XML files.
A remote attacker can exploit this, via a crafted XML file, to browse the contents of arbitrary files on a SharePoint server. (CVE-2015-2556)
- A cross-site scripting vulnerability exists in Office Web Apps Server due to improper sanitization of crafted requests before returning it to the user. A remote attacker can exploit this to run arbitrary script code in the user's browser session. (CVE-2015-6037)
SolutionMicrosoft has released a set of patches for Office 2007, 2010, 2013, 2013 RT, 2016; SharePoint Server 2007, 2010, 2013; Microsoft Office Compatibility Pack SP3; Microsoft Excel Viewer; and Microsoft Office Web Apps 2010, 2013.