#VU29771 Buffer overflow in Microsoft products - CVE-2020-1447
Vulnerability identifier: #VU29771
Vulnerability risk: High
CVSSv4.0: [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Microsoft SharePoint Server
Server applications /
Application servers
Microsoft Office
Client/Desktop applications /
Office applications
Microsoft Word
Client/Desktop applications /
Office applications
Microsoft Office for Mac
Client/Desktop applications /
Office applications
Microsoft Office Web Apps
Client/Desktop applications /
Office applications
Office Online Server
Server applications /
Other server solutions
Vendor: Microsoft
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 file, 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 update from vendor's website.
Vulnerable software versions
Microsoft SharePoint Server: 2010 - 2019
Microsoft Office: 2010 Service Pack 2, 2019 for Mac - 2019
Office Online Server : 2016
Microsoft Word: 2010, 2013 RT Service Pack 1, 2013 Service Pack 1, 2016
Microsoft Office for Mac: 2016
Microsoft Office Web Apps: 2010 Service Pack 2 - 2013 Service Pack 1
External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1447
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
