CVE-2017-8631 — HIGH (7.8) — White Hats Nepal

Vulnerability Description

A remote code execution vulnerability exists in Excel Services, Microsoft Excel 2007 Service Pack 3, Microsoft Excel 2010 Service Pack 2, Microsoft Excel 2013 Service Pack 1, Microsoft Excel 2013 RT Service Pack 1, Microsoft Excel 2016, Microsoft Office Web Apps 2013, Microsoft Office Compatibility Pack Service Pack 3, Microsoft Excel Web App 2013 Service Pack 1, Microsoft Excel Viewer 2007 Service Pack 3, and Office Online Server when they fail to properly handle objects in memory, aka "Microsoft Office Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-8630, CVE-2017-8632, and CVE-2017-8744.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Microsoft	Excel	2007
Microsoft	Excel Viewer	2007
Microsoft	Excel Web App	2013
Microsoft	Office Compatibility Pack	-
Microsoft	Office Online Server	All versions
Microsoft	Office Web Apps	2013

References

http://www.securityfocus.com/bid/100751Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039315Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8631PatchVendor Advisory
http://www.securityfocus.com/bid/100751Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039315Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8631PatchVendor Advisory

FAQ

What is CVE-2017-8631?

CVE-2017-8631 is a vulnerability with a CVSS score of 7.8 (HIGH). A remote code execution vulnerability exists in Excel Services, Microsoft Excel 2007 Service Pack 3, Microsoft Excel 2010 Service Pack 2, Microsoft Excel 2013 Service Pack 1, Microsoft Excel 2013 RT S...

How severe is CVE-2017-8631?

CVE-2017-8631 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2017-8631?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Excel, Microsoft Excel Viewer, Microsoft Excel Web App, Microsoft Office Compatibility Pack, Microsoft Office Online Server.