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Computer vulnerabilities of Office InfoPath

vulnerability bulletin CVE-2014-6362

Microsoft Office: bypassing ASLR

Synthesis of the vulnerability

An attacker can bypass ASLR via Microsoft Office, in order to ease the exploitation of another vulnerability.
Impacted products: Office, Access, Excel, InfoPath, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word.
Severity: 2/4.
Consequences: user access/rights.
Provenance: document.
Creation date: 10/02/2015.
Identifiers: 3033857, CERTFR-2015-AVI-064, CVE-2014-6362, MS15-013, VIGILANCE-VUL-16163.

Description of the vulnerability

Systems use ASLR in order to randomize memory addresses used by programs and libraries.

However, Microsoft Office allows an attacker to bypass this security feature.

An attacker can therefore bypass ASLR via Microsoft Office, in order to ease the exploitation of another vulnerability.
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vulnerability announce CVE-2015-0063 CVE-2015-0064 CVE-2015-0065

Microsoft Office: three vulnerabilities

Synthesis of the vulnerability

An attacker can use several vulnerabilities of Microsoft Office.
Impacted products: Office, Access, Excel, InfoPath, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word.
Severity: 3/4.
Consequences: user access/rights.
Provenance: document.
Number of vulnerabilities in this bulletin: 3.
Creation date: 10/02/2015.
Identifiers: 3032328, CERTFR-2015-AVI-063, CVE-2015-0063, CVE-2015-0064, CVE-2015-0065, MS15-012, VIGILANCE-VUL-16162.

Description of the vulnerability

Several vulnerabilities were announced in Microsoft Office.

An attacker can generate a memory corruption in Excel, in order to trigger a denial of service, and possibly to execute code. [severity:3/4; CVE-2015-0063]

An attacker can generate a memory corruption in Word, in order to trigger a denial of service, and possibly to execute code. [severity:3/4; CVE-2015-0064]

An attacker can generate a memory corruption in Word OneTableDocumentStream, in order to trigger a denial of service, and possibly to execute code. [severity:3/4; CVE-2015-0065]
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computer vulnerability alert CVE-2014-6364

Microsoft Office: use after free

Synthesis of the vulnerability

An attacker can force the usage of a freed memory area of Microsoft Office, in order to trigger a denial of service, and possibly to execute code.
Impacted products: Office, Excel, InfoPath, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word.
Severity: 3/4.
Consequences: user access/rights, denial of service on client.
Provenance: document.
Creation date: 09/12/2014.
Identifiers: 3017349, CERTFR-2014-AVI-520, CVE-2014-6364, MS14-082, VIGILANCE-VUL-15766.

Description of the vulnerability

The Microsoft Office suite converts documents to object located in memory.

However, a function frees a memory area before reusing it.

An attacker can therefore force the usage of a freed memory area of Microsoft Office, in order to trigger a denial of service, and possibly to execute code.
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vulnerability bulletin CVE-2014-4077

Office 2007: privilege escalation via IME Japanese

Synthesis of the vulnerability

An attacker can use a vulnerability of the IME Japanese of Office 2007, in order to escalate his privileges.
Impacted products: Office, Access, Office Communicator, Excel, InfoPath, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word.
Severity: 2/4.
Consequences: administrator access/rights, privileged access/rights.
Provenance: document.
Creation date: 12/11/2014.
Identifiers: 2992719, CERTFR-2014-AVI-476, CVE-2014-4077, MS14-078, VIGILANCE-VUL-15623.

Description of the vulnerability

The Office 2007 product can be configured with a Japanese IME (Input Method Editor), in order to enter Japanese characters.

However, a special file can be used to escape from the sandbox.

An attacker can therefore use a vulnerability of the IME Japanese of Office 2007, in order to escalate his privileges.
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vulnerability announce CVE-2014-1809

Microsoft Office: bypassing ASLR via MSCOMCTL

Synthesis of the vulnerability

An attacker can obtain memory addresses, to bypass ASLR, in order to facilitate the development of an attack tool.
Impacted products: Office, Access, Excel, InfoPath, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word.
Severity: 2/4.
Consequences: data reading.
Provenance: document.
Creation date: 13/05/2014.
Identifiers: 2961033, CERTFR-2014-AVI-222, CVE-2014-1809, MS14-024, VIGILANCE-VUL-14742.

Description of the vulnerability

The ASLR (Address Space Layout Randomization) feature loads programs at random memory addresses, so it's more difficult to exploit memory corruptions.

However, the Microsoft Office MSCOMCTL library uses fixed addresses.

An attacker can therefore obtain memory addresses, to bypass ASLR, in order to facilitate the development of an attack tool.
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vulnerability alert CVE-2014-1756 CVE-2014-1808

Microsoft Office: two vulnerabilities

Synthesis of the vulnerability

An attacker can use several vulnerabilities of Microsoft Office.
Impacted products: Office, Access, Excel, InfoPath, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word.
Severity: 3/4.
Consequences: user access/rights, data reading.
Provenance: document.
Number of vulnerabilities in this bulletin: 2.
Creation date: 13/05/2014.
Identifiers: 2961037, CERTFR-2014-AVI-221, CVE-2014-1756, CVE-2014-1808, MS14-023, VIGILANCE-VUL-14741.

Description of the vulnerability

Several vulnerabilities were announced in Microsoft Office.

The Simplified Chinese Grammar Checker accepts to load a DLL from a remote path, so an attacker can execute code. [severity:3/4; CVE-2014-1756]

An attacker can reuse a token, in order to obtain sensitive information. [severity:2/4; CVE-2014-1808]
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computer vulnerability CVE-2013-5057

Microsoft Office 2007, 2010: bypassing ASLR via HXDS

Synthesis of the vulnerability

An attacker can use hxds.dll, in order to bypass ASLR to exploit another vulnerability.
Impacted products: Office, Access, Office Communicator, Excel, InfoPath, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word.
Severity: 2/4.
Consequences: administrator access/rights, privileged access/rights, user access/rights.
Provenance: internet server.
Creation date: 11/12/2013.
Identifiers: 2905238, BID-64095, CERTA-2013-AVI-672, CVE-2013-5057, MS13-106, VIGILANCE-VUL-13935.

Description of the vulnerability

The ASLR (Address Space Layout Randomization) feature loads programs at random memory addresses, so it's more difficult to exploit memory corruptions.

The Office suite installs the hxds.dll library (C:\Program Files\Common Files\microsoft shared\Help\). It can be instanciated in Internet Explorer with JavaScript code such as "location.href = 'ms-help:'".

However, memory addresses of this library are not randomized.

An attacker can therefore use hxds.dll, in order to bypass ASLR to exploit another vulnerability.
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vulnerability note CVE-2013-5054

Microsoft Office 2013: obtaining the SharePoint token

Synthesis of the vulnerability

An attacker can invite the victim to open an Office document on a remote server, in order to obtain the authentication token for a SharePoint server.
Impacted products: Office, Access, Excel, InfoPath, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word.
Severity: 2/4.
Consequences: user access/rights, data reading.
Provenance: internet server.
Creation date: 11/12/2013.
Identifiers: 2909976, BID-64092, CERTA-2013-AVI-670, CVE-2013-5054, MS13-104, VIGILANCE-VUL-13934.

Description of the vulnerability

An Office program can open a document located on a remote server.

The remote server can require an authentication. However, the server can deceive Office, so it sends authentication data which are for another SharePoint server.

An attacker can therefore invite the victim to open an Office document on a remote server, in order to obtain the authentication token for a SharePoint server.
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vulnerability alert CVE-2013-3906

Windows, Office, Lync: memory corruption via TIFF

Synthesis of the vulnerability

An attacker can invite the victim to display a document containing a malicious TIFF image, to generate a memory corruption in Windows, Office or Lync, in order to trigger a denial of service, and possibly to execute code.
Impacted products: Lync, Office, Access, Office Communicator, Excel, InfoPath, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word, Windows 2008 R0, Windows 2008 R2, Windows Vista.
Severity: 3/4.
Consequences: user access/rights, denial of service on client.
Provenance: document.
Creation date: 06/11/2013.
Identifiers: 2896666, 2908005, BID-63530, CERTA-2013-ALE-007, CERTA-2013-AVI-662, CVE-2013-3906, MS13-096, VIGILANCE-VUL-13711.

Description of the vulnerability

The TIFF (Tagged Image File Format) format is used to store an image. It is supported by the GDI+ interface, and can be displayed by Windows, Office or Lync applications.

However, fields of a TIFF image are not correctly processed by GDI+, and a memory corruption occurs.

An attacker can therefore invite the victim to display a document containing a malicious TIFF image, to generate a memory corruption in Windows, Office or Lync, in order to trigger a denial of service, and possibly to execute code.
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computer vulnerability CVE-2013-3859

Microsoft Office: privilege escalation via Pinyin IME

Synthesis of the vulnerability

On a Chinese system, a local attacker can use Pinyin IME of Microsoft Office, in order to escalate his privileges.
Impacted products: Office, Access, Excel, InfoPath, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word.
Severity: 2/4.
Consequences: administrator access/rights.
Provenance: user shell.
Creation date: 10/09/2013.
Identifiers: 2878687, BID-62181, CERTA-2013-AVI-520, CVE-2013-3859, MS13-075, VIGILANCE-VUL-13405.

Description of the vulnerability

When Microsoft Office 2010 is installed on a Chinese system, Microsoft Pinyin IME 2010 is enabled, in order to help users to enter special characters.

However, the IME toolbar can be used to start Internet Explorer with system privileges.

On a Chinese system, a local attacker can therefore use Pinyin IME of Microsoft Office, in order to escalate his privileges.
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