KLA11267 Multiple vulnerabilities in Microsoft Office

Multiple serious vulnerabilities have been found in Microsoft Office. Malicious users can exploit these vulnerabilities to gain privileges, obtain sensitive information or execute arbitrary code.

Below is a complete list of vulnerabilities:

1. An incorrect handling of requests in Microsoft SharePoint Server can be exploited remotely via a specially designed request to gain privileges;
2. Multiple improper handling of objects in memory vulnerabilities in Microsoft Excel can be exploited locally via a specially designed document file to execute arbitrary code or obtain sensitive information;
3. An incorrect handling of requests in Office Web Apps Server 2013 and Office Online Server can be exploited remotely via a specially designed request to gain privileges;
4. An incorrect OLE objects instantiation in Microsoft Publisher can be exploited remotely via a specially designed request to gain privileges;
5. An improper validation of attachment headers in Microsoft Outlook can be exploited remotely via a specially designed e-main message to gain privileges.

Original advisories

ADV180015

CVE-2018-8254

CVE-2018-8248

CVE-2018-8246

CVE-2018-8252

CVE-2018-8247

CVE-2018-8245

CVE-2018-8244

Exploitation

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Related products

Microsoft-Office

Microsoft-Outlook

Microsoft-Excel

CVE list

CVE-2018-8254 warning

CVE-2018-8248 critical

CVE-2018-8246 warning

CVE-2018-8252 warning

CVE-2018-8247 high

CVE-2018-8245 high

CVE-2018-8244 warning

KB list

4022209

4022197

3115248

4022182

4022179

4022205

4022190

4022199

3115197

4022196

4022174

4022173

4022160

4022151

4011186

4011026

4018387

4022210

4022169

4022177

4018391

4022183

4022191

4022203

Solution

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)

Impacts

• ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

• OSI

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

• SB

Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.

• PE

Privilege escalation. Exploitation of vulnerabilities with this impact can lead to performing by abuser actions, which are normally disallowed for current role.

Affected Products

• Excel ServicesMicrosoft Excel 2010 Service Pack 2 (32-bit editions)Microsoft Excel 2010 Service Pack 2 (64-bit editions)Microsoft Excel 2013 RT Service Pack 1Microsoft Excel 2013 Service Pack 1 (32-bit editions)Microsoft Excel 2013 Service Pack 1 (64-bit editions)Microsoft Excel 2016 (32-bit edition)Microsoft Excel 2016 (64-bit edition)Microsoft Excel ViewerMicrosoft Office 2010 Service Pack 2 (32-bit editions)Microsoft Office 2010 Service Pack 2 (64-bit editions)Microsoft Office 2013 RT Service Pack 1Microsoft Office 2013 Service Pack 1 (32-bit editions)Microsoft Office 2013 Service Pack 1 (64-bit editions)Microsoft Office 2016 (32-bit edition)Microsoft Office 2016 (64-bit edition)Microsoft Office 2016 Click-to-Run (C2R) for 32-bit editionsMicrosoft Office 2016 Click-to-Run (C2R) for 64-bit editionsMicrosoft Office Compatibility Pack Service Pack 3Microsoft Office Online Server 2016Microsoft Office Web Apps Server 2010 Service Pack 2Microsoft Office Web Apps Server 2013 Service Pack 1Microsoft Outlook 2010 Service Pack 2 (32-bit editions)Microsoft Outlook 2010 Service Pack 2 (64-bit editions)Microsoft Outlook 2013 RT Service Pack 1Microsoft Outlook 2013 Service Pack 1 (32-bit editions)Microsoft Outlook 2013 Service Pack 1 (64-bit editions)Microsoft Outlook 2016 (32-bit edition)Microsoft Outlook 2016 (64-bit edition)Microsoft Project Server 2010 Service Pack 2Microsoft Publisher 2010 Service Pack 2 (32-bit editions)Microsoft Publisher 2010 Service Pack 2 (64-bit editions)Microsoft SharePoint Enterprise Server 2016Microsoft SharePoint Foundation 2013 Service Pack 1Word Automation Services