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AUSCERT External Security Bulletin Redistribution
Microsoft Security Bulletin MS15-036 - Important
15 April 2015
AusCERT Security Bulletin Summary
Product: Microsoft SharePoint Server
Operating System: Windows
Impact/Access: Cross-site Scripting -- Remote with User Interaction
CVE Names: CVE-2015-1653 CVE-2015-1640
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Microsoft Security Bulletin MS15-036 - Important
Vulnerabilities in Microsoft SharePoint Server Could Allow Elevation of
Published: April 14, 2015
This security update resolves vulnerabilities in Microsoft Office server and
productivity software. The vulnerabilities could allow elevation of privilege
if an attacker sends a specially crafted request to an affected SharePoint
server. An attacker who successfully exploited the vulnerabilities could read
content that the attacker is not authorized to read, use the victim's identity
to take actions on the SharePoint site on behalf of the victim, such as change
permissions and delete content, and inject malicious content in the victims
This security update is rated Important for supported editions of Microsoft
SharePoint Server 2010, Microsoft SharePoint Server 2013, and Microsoft
SharePoint Foundation 2013.
For more information, see the Affected Software section.
Microsoft SharePoint Server 2013
Microsoft SharePoint Server 2013 Service Pack 1
Microsoft SharePoint Server 2010
Microsoft SharePoint Server 2010 Service Pack 2
Multiple SharePoint XSS Vulnerabilities
Elevation of privilege vulnerabilities exist when SharePoint Server does not
properly sanitize a specially crafted request to an affected SharePoint
server. An authenticated attacker could exploit these vulnerabilities by
sending a specially crafted request to an affected SharePoint server. The
attacker who successfully exploited these vulnerabilities could then perform
cross-site scripting attacks on affected systems and run script in the
security context of the current user.These attacks could allow the attacker to
read content that the attacker is not authorized to read, use the victim's
identity to take actions on the SharePoint site on behalf of the victim, such
as change permissions and delete content, and inject malicious content in the
browser of the victim.
The security update addresses the vulnerabilities by helping to ensure that
SharePoint Server properly sanitizes user input.
Microsoft received information about the vulnerabilities through coordinated
vulnerability disclosure. When this security bulletin was issued, Microsoft
had not received any information to indicate that these vulnerabilities had
been publicly used to attack customers.
The following table contains links to the standard entry for each
vulnerability in the Common Vulnerabilities and Exposures list:
Vulnerability title CVE number
Microsoft SharePoint XSS Vulnerability CVE-2015-1640
Microsoft SharePoint XSS Vulnerability CVE-2015-1653
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