PT-2015-2335 · Microsoft · Office Web Apps Server+5

Published 2015-10-13 · Updated 2018-10-12 · CVE-2015-6037

Positive Technologies (AI Summary)

CVSS v2.0

3.5

Low

Base vector

AV:N/AC:M/Au:S/C:N/I:P/A:N

Name of the Vulnerable Software and Affected Versions Microsoft Excel Services on SharePoint Server versions 2010 SP2 through 2013 SP1 Office Web Apps versions 2010 SP2 through 2013 SP1 Excel Web App version 2010 SP2 Office Web Apps Server version 2013 SP1 SharePoint Foundation version 2013 SP1

Description The issue allows remote authenticated users to inject arbitrary web script or HTML via a crafted URL. An attacker could exploit this by sending a specially crafted request to an affected Office Web Apps Server, potentially leading to cross-site scripting attacks. These attacks could allow the attacker to read unauthorized content, use the victim's identity to take actions on the Office Web App site, change permissions, delete content, steal sensitive information, and inject malicious content in the victim's browser. For this issue to be exploited, a user must click a specially crafted URL that takes the user to a targeted Office Web App site.

Recommendations For Microsoft Excel Services on SharePoint Server 2010 SP2, update to a version that includes the fix for this issue. For Microsoft Excel Services on SharePoint Server 2013 SP1, update to a version that includes the fix for this issue. For Office Web Apps 2010 SP2, update to a version that includes the fix for this issue. For Office Web Apps 2013 SP1, update to a version that includes the fix for this issue. For Excel Web App 2010 SP2, update to a version that includes the fix for this issue. For Office Web Apps Server 2013 SP1, update to a version that includes the fix for this issue. For SharePoint Foundation 2013 SP1, update to a version that includes the fix for this issue. As a temporary workaround, consider restricting access to the vulnerable Office Web Apps Server to minimize the risk of exploitation. Avoid using specially crafted URLs in the affected Office Web App sites until the issue is resolved.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BDU:2015-11700

CVE-2015-6037

Affected Products

Excel Web App

Excel Services

Office Web Apps

Office Web Apps Server

Sharepoint Foundation

Sharepoint Server

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2015-6037 · Security Note
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-110 · Vendor Advisory
• https://bdu.fstec.ru/vul/2015-11700 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6037 · Security Note
• http://technet.microsoft.com/security/bulletin/MS15-110 · Note
• http://securitytracker.com/id/1033803 · Note
• http://technet.microsoft.com/security/bulletin/ms15-110 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6037 · Note
• http://securitytracker.com/id/1033804 · Note