Remote code execution in Microsoft Office
| Risk | Critical |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2016-7193 |
| CWE-ID | CWE-119 |
| Exploitation vector | Network |
| Public exploit | This vulnerability is being exploited in the wild. |
| Vulnerable software |
Microsoft Office Client/Desktop applications / Office applications Microsoft Office Compatibility Pack Client/Desktop applications / Office applications Microsoft Office for Mac Client/Desktop applications / Office applications Microsoft Word Client/Desktop applications / Office applications Word Viewer Client/Desktop applications / Office applications Office Online Server Server applications / Other server solutions Word Automation Services on Microsoft SharePoint Server Server applications / Other server solutions |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains one critical risk vulnerability.
1) Memory corruption
EUVDB-ID: #VU964
Risk: Critical
CVSSv4.0: 8.4 [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:A/U:Red]
CVE-ID: CVE-2016-7193
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to boundary error when handling of malicious RTF files by Microsoft Word. A remote attacker can create a specially crafted RTF document, trick the victim into opening it, trigger memory corruption and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability will result in arbitrary code execution.
Note: the vulnerability was being actively exploited.
Install update from vendor's website.
Microsoft Office: 2007 - 2016
Microsoft Office Compatibility Pack: Service Pack 3
Microsoft Office for Mac: 2011 - 2016
Office Online Server: 1.0
Microsoft Word: 2007 - 2013
Word Viewer: 2007
Word Automation Services on Microsoft SharePoint Server: 2010 - 2013
CPE2.3- cpe:2.3:a:microsoft:microsoft_office:*:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office_compatibility_pack:Service_Pack_3:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office_for_mac:2011:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office_for_mac:2016:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:office_online_server:1.0:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_word:*:*:*:*:*:microsoft_office:*:*
- cpe:2.3:a:microsoft:word_viewer:2007:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:word_automation_services_on_microsoft_sharepoint_server:2010:*:*:*:*:*:*:*
http://technet.microsoft.com/en-us/library/security/MS16-121
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to visit a specially crafted website or open a file.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.
