Multiple vulnerabilities in Microsoft Word



Published: 2019-01-08
Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2019-0561
CVE-2019-0585
CWE-ID CWE-200
CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Microsoft Office for Mac
Client/Desktop applications / Office applications

Microsoft Office
Client/Desktop applications / Office applications

Microsoft Word
Client/Desktop applications / Office applications

Word Automation Services on Microsoft SharePoint Server
Server applications / Other server solutions

Office Online Server
Server applications / Other server solutions

Microsoft Office Web Apps Server
Server applications / Application servers

Microsoft SharePoint Server
Server applications / Application servers

Vendor Microsoft

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU16882

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2019-0561

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to improper usage of Microsoft Word macro buttons. A remote attacker can create a specially crafted Microsoft Word file, trick the victim into opening it and read contents of arbitrary file on the system.

Successful exploitation of the vulnerability requires knowledge of the exact location of the file.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Office for Mac: 2016

Microsoft Office: 365 ProPlus - 2019 for Mac

Microsoft Word: 2010 - 2019

Word Automation Services on Microsoft SharePoint Server: 2010 Service Pack 2

Microsoft Office Web Apps Server: 2010 Service Pack 2


CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0561

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

2) Buffer overflow

EUVDB-ID: #VU16881

Risk: High

CVSSv3.1:

CVE-ID: CVE-2019-0585

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing Microsoft Word files. A remote attacker can create a specially crafted Word document, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Office for Mac: 2016

Microsoft Office: 365 ProPlus - 2019 for Mac

Microsoft Word: 2010 - Viewer

Microsoft SharePoint Server: 2013 - 2019

Word Automation Services on Microsoft SharePoint Server: 2010 Service Pack 2

Office Online Server : 2016

Microsoft Office Web Apps Server: 2010 Service Pack 2


CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0585

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?



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