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AUSCERT External Security Bulletin Redistribution
ESB-2015.0558
MS15-022: Vulnerabilities in Microsoft Office Could Allow
Remote Code Execution
11 March 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: Microsoft Office
Microsoft Office Services and Web Apps
Microsoft SharePoint Server Software
Publisher: Microsoft
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Cross-site Scripting -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2015-1636 CVE-2015-1633 CVE-2015-0097
CVE-2015-0086 CVE-2015-0085
Original Bulletin:
https://technet.microsoft.com/library/security/ms15-022
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Document Metadata
Bulletin Number: MS15-022
Bulletin Title: Vulnerabilities in Microsoft Office Could Allow Remote Code
Execution
Severity: Critical
KB Article: 3038999
Version: 1.0
Published Date: March 10, 2015
Description: This security update resolves vulnerabilities in Microsoft
Office. The most severe of the vulnerabilities could allow remote code
execution if a user opens a specially crafted Microsoft Office file. An
attacker who successfully exploited the vulnerabilities could run arbitrary
code in the context of the current user. Customers whose accounts are
configured to have fewer user rights on the system could be less impacted than
those who operate with administrative user rights.
Executive Summary
This security update resolves vulnerabilities in Microsoft Office. The most
severe of the vulnerabilities could allow remote code execution if a user
opens a specially crafted Microsoft Office file. An attacker who successfully
exploited the vulnerabilities could run arbitrary code in the context of the
current user. Customers whose accounts are configured to have fewer user
rights on the system could be less impacted than those who operate with
administrative user rights.
This security update is rated Critical for all supported editions of Microsoft
Office 2007, Microsoft Office 2010, and Microsoft Office 2013.
Affected Software
The following software versions or editions are affected.
Microsoft Office Suites Software Component
Microsoft Office 2007
Microsoft Office 2007 Service Pack 3 Not applicable
Microsoft Office 2007 Service Pack 3 Microsoft Excel 2007 Service Pack 3
Microsoft Office 2007 Service Pack 3 Microsoft PowerPoint 2007 Service Pack 3
Microsoft Office 2007 Service Pack 3 Microsoft Word 2007 Service Pack 3
Microsoft Office 2010
Microsoft Office 2010 Service Pack 2 Not applicable
(32-bit editions)
Microsoft Office 2010 Service Pack 2 Not applicable
(64-bit editions)
Microsoft Office 2010 Service Pack 2 Not applicable
(32-bit editions)
Microsoft Office 2010 Service Pack 2 Not applicable
(64-bit editions)
Microsoft Office 2010 Service Pack 2 Not applicable
(32-bit editions) (oart)
Microsoft Office 2010 Service Pack 2 Not applicable
(64-bit editions) (oart)
Microsoft Office 2010 Service Pack 2 Not applicable
(32-bit editions) (oartconv)
Microsoft Office 2010 Service Pack 2 Not applicable
(64-bit editions) (oartconv)
Microsoft Office 2010 Service Pack 2 Microsoft Excel 2010
(32-bit editions) Service Pack 2
(32-bit editions)
Microsoft Office 2010 Service Pack 2 Microsoft Excel 2010
(64-bit editions) Service Pack 2
(64-bit editions)
Microsoft Office 2010 Service Pack 2 Microsoft PowerPoint
(32-bit editions) 2010 Service Pack 2
(32-bit editions)
Microsoft Office 2010 Service Pack 2 Microsoft PowerPoint
(64-bit editions) 2010 Service Pack 2
(64-bit editions)
Microsoft Office 2010 Service Pack 2 Microsoft Word 2010
(32-bit editions) Service Pack 2
(32-bit editions)
Microsoft Office 2010 Service Pack 2 Microsoft Word 2010
(64-bit editions) Service Pack 2
(64-bit editions)
Microsoft Office 2013
Microsoft Office 2013 (32-bit editions) Not applicable
Microsoft Office 2013 Service Pack 1 Not applicable
(32-bit editions)
Microsoft Office 2013 Not applicable
(64-bit editions)
Microsoft Office 2013 Service Pack 1 Not applicable
(64-bit editions)
Microsoft Office 2013 (32-bit editions) Microsoft Word 2013
(32-bit editions)
Microsoft Office 2013 Service Pack 1 Microsoft Word 2013
(32-bit editions) Service Pack 1
(32-bit editions)
Microsoft Office 2013 (64-bit editions) Microsoft Word 2013
(64-bit editions)
Microsoft Office 2013 Service Pack 1 Microsoft Word 2013
(64-bit editions) Service Pack 1
(64-bit editions)
Office 2013 RT
Microsoft Office 2013 RT Not applicable
Microsoft Office 2013 RT Service Pack 1 Not applicable
Microsoft Office 2013 RT Microsoft Word 2013 RT [1]
Microsoft Office 2013 RT Service Pack 1 Microsoft Word 2013 RT
Service Pack 1 [1]
Other Office Software
Microsoft Word Viewer Not applicable
Microsoft Excel Viewer Not applicable
Microsoft Office Compatibility Pack Not applicable
Service Pack 3
Microsoft Office Compatibility Pack Not applicable
Service Pack 3 (xlconv)
[1]This update is available via Windows Update.
Microsoft Office Services and Web Apps Component
Microsoft SharePoint Server 2010
Microsoft SharePoint Server 2010 Service Pack 2 Word Automation Services
(wdsrv)
Microsoft SharePoint Server 2013
Microsoft SharePoint Server 2013 Excel Services (xlsrvloc)
Microsoft SharePoint Server 2013 Service Pack 1 Excel Services (xlsrvloc)
Microsoft SharePoint Server 2013 Word Automation Services
(wdsrvloc)
Microsoft SharePoint Server 2013 Service Pack 1 Word Automation Services
(wdsrvloc)
Microsoft Office Web Apps 2010
Microsoft Office Web Apps 2010 Service Pack 2 Microsoft Web Applications
2010 Service Pack 2
(wacloc2010)
Microsoft Office Web Apps 2010 Service Pack 2 Microsoft Office Web Apps
Server 2010 Service Pack 2
(wacloc2010)
Microsoft Office Web Apps 2013
Microsoft Office Web Apps 2013 Microsoft Office Web Apps
Server 2013[2]
(wacserver2013)
Microsoft Office Web Apps 2013 Service Pack 1 Microsoft Office Web Apps
Server 2013 Service Pack 1[2]
(wacserver2013)
[2]Applying Office Web Apps Server updates by using the automatic updates
process is not supported for Office Web Apps Server.
Microsoft SharePoint Server Component
Microsoft SharePoint Server 2007
Microsoft SharePoint Server 2007 Service Pack 3 Not applicable
(32-bit editions)
Microsoft SharePoint Server 2007 Service Pack 3 Not applicable
(64-bit editions)
Microsoft Windows SharePoint Services 3.0 Not applicable
Service Pack 3 (32-bit versions)
Microsoft Windows SharePoint Services 3.0 Not applicable
Service Pack 3 (64-bit versions)
Microsoft SharePoint Server 2010
Microsoft SharePoint Server 2010 Service Pack 2 Microsoft SharePoint
Foundation 2010 Service
Pack 2 (wssloc)
Microsoft SharePoint Server 2010 Service Pack 2 Microsoft SharePoint Server
2010 Service Pack 2 (wssloc)
Microsoft SharePoint Server 2013
Microsoft SharePoint Server 2013 Microsoft SharePoint Foundation
2013 (sts)
Microsoft SharePoint Server 2013 Service Pack 1 Microsoft SharePoint Foundation
2013 Service Pack 1 (sts)
Microsoft SharePoint Server 2013 Microsoft SharePoint Foundation
2013 (wssloc)
Microsoft SharePoint Server 2013 Service Pack 1 Microsoft SharePoint Foundation
2013 Service Pack 1 (wssloc)
Microsoft SharePoint Server 2013 Microsoft SharePoint Foundation
2013 (smsloc)
Microsoft SharePoint Server 2013 Service Pack 1 Microsoft SharePoint Foundation
2013 Service Pack 1 (smsloc)
Microsoft SharePoint Server 2013 Microsoft SharePoint Server 2013 (
acsrvloc)
Microsoft SharePoint Server 2013 Service Pack 1 Microsoft SharePoint Server
2013 Service Pack 1 (acsrvloc)
Microsoft SharePoint Server 2013 Microsoft SharePoint Server 2013
(coreserverloc)
Microsoft SharePoint Server 2013 Service Pack 1 Microsoft SharePoint Server 2013
Service Pack 1 (coreserverloc)
Microsoft SharePoint Server 2013 Microsoft SharePoint Server 2013
(eduloc)
Microsoft SharePoint Server 2013 Service Pack 1 Microsoft SharePoint Server 2013
Service Pack 1 (eduloc)
Microsoft SharePoint Server 2013 Microsoft SharePoint Server 2013
(ifsloc)
Microsoft SharePoint Server 2013 Service Pack 1 Microsoft SharePoint Server 2013
Service Pack 1 (ifsloc)
Microsoft SharePoint Server 2013 Microsoft SharePoint Server 2013
(lpsrvloc)
Microsoft SharePoint Server 2013 Service Pack 1 Microsoft SharePoint Server 2013
Service Pack 1 (lpsrvloc)
Microsoft SharePoint Server 2013 Microsoft SharePoint Server 2013
(ppsmaloc)
Microsoft SharePoint Server 2013 Service Pack 1 Microsoft SharePoint Server 2013
Service Pack 1 (ppsmaloc)
Microsoft SharePoint Server 2013 Microsoft SharePoint Server 2013
(vsrvloc)
Microsoft SharePoint Server 2013 Service Pack 1 Microsoft SharePoint Server 2013
Service Pack 1 (vsrvloc)
Microsoft SharePoint Server 2013 Microsoft SharePoint Server 2013
(wasrvloc)
Microsoft SharePoint Server 2013 Service Pack 1 Microsoft SharePoint Server 2013
Service Pack 1 (wasrvloc)
Vulnerability Information
Microsoft Office Component Use After Free Vulnerability - CVE-2015-0085
A remote code execution vulnerability exists in Microsoft Office software that
is caused when the Office software improperly handles objects in memory while
parsing specially crafted Office files. This could corrupt system memory in
such a way as to allow an attacker to execute arbitrary code.
An attacker who successfully exploited this vulnerability could run arbitrary
code in the context of the current user. If the current user is logged on with
administrative user rights, an attacker could take complete control of the
affected system. An attacker could then install programs; view, change, or
delete data; or create new accounts with full user rights. Users whose
accounts are configured to have fewer user rights on the system could be less
impacted than users who operate with administrative user rights.
Exploitation of this vulnerability requires that a user open a specially
crafted file with an affected version of Microsoft Office software. In an
email attack scenario an attacker could exploit the vulnerability by sending a
specially crafted file to the user and convincing the user to open the file.
In a web-based attack scenario an attacker could host a website (or leverage a
compromised website that accepts or hosts user-provided content) that contains
a specially crafted file that is designed to exploit the vulnerability. An
attacker would have no way to force users to visit the website. Instead, an
attacker would have to convince users to visit it, typically by getting them
to click a link in an instant messenger or email message, and then convince
them to open the specially crafted file.
The security update addresses the vulnerability by correcting how Microsoft
Office parses specially crafted files.
Microsoft received information about the vulnerability through coordinated
vulnerability disclosure. When this security bulletin was issued, Microsoft
had not received any information to indicate that this vulnerability had been
publicly used to attack customers.
Microsoft Office Memory Corruption Vulnerability - CVE-2015-0086
A remote code execution vulnerability exists in Microsoft Office software when
the Office software fails to properly handle rich text format files in memory.
An attacker who successfully exploited the vulnerability could use a specially
crafted file to perform actions in the security context of the current user.
The file could then, for example, take actions on the behalf of the logged-on
user with the same permissions as the current user.
Exploitation of this vulnerability requires that a user open a specially
crafted file with an affected version of Microsoft Office software. In an
email attack scenario an attacker could exploit the vulnerability by sending
the specially crafted file to the user and convincing the user to open the
file. Note that the Preview Pane is an attack vector for this vulnerability.
In a web-based attack scenario an attacker could host a website (or leverage a
compromised website that accepts or hosts user-provided content) that contains
a specially crafted file that is designed to exploit the vulnerability. An
attacker would have no way to force users to visit the website. Instead, an
attacker would have to convince users to visit it, typically by getting them
to click a link in an instant messenger or email message, and then convince
them to open the specially crafted file.
The security update addresses the vulnerability by correcting how Office
handles files in memory.
Microsoft received information about the vulnerability through coordinated
vulnerability disclosure. When this security bulletin was issued, Microsoft
had not received any information to indicate that this vulnerability had been
publicly used to attack customers.
Microsoft Word Local Zone Remote Code Execution Vulnerability CVE-2015-0097
A remote code execution vulnerability exists in Microsoft Office software that
is caused when the Office software improperly handles objects in memory while
parsing specially crafted Office files. This could corrupt system memory in
such a way as to allow an attacker to execute arbitrary code.
An attacker who successfully exploited the vulnerability could use a specially
crafted file to perform actions in the security context of the current user.
The file could then, for example, take actions on the behalf of the logged-on
user with the same permissions as the current user.
Exploitation of this vulnerability requires that a user open a specially
crafted file with an affected version of Microsoft Office software. In an
email attack scenario an attacker could exploit the vulnerability by sending
the specially crafted file to the user and convincing the user to open the
file. Note that the Preview Pane is not an attack vector for this
vulnerability. In a web-based attack scenario an attacker could host a website
(or leverage a compromised website that accepts or hosts user-provided
content) that contains a specially crafted file that is designed to exploit
the vulnerability. An attacker would have no way to force users to visit the
website. Instead, an attacker would have to convince users to visit it,
typically by getting them to click a link in an instant messenger or email
message, and then convince them to open the specially crafted file.
The security update addresses the vulnerability by correcting how Microsoft
Office parses specially crafted files.
Microsoft received information about the vulnerability through coordinated
vulnerability disclosure. When this security bulletin was issued, Microsoft
had not received any information to indicate that this vulnerability had been
publicly used to attack customers.
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.
Vulnerability title CVE number Publicly Disclosed Exploited
Microsoft SharePoint CVE-2015-1633 No No
XSS Vulnerability
Microsoft SharePoint CVE-2015-1636 No No
XSS Vulnerability
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