cbcvebase.
CVE-2018-0807
published 2018-01-10

CVE-2018-0807: Equation Editor in Microsoft Office 2003, Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allows a remote code…

PriorityP258high8.8CVSS 3.0
AVNACLPRNUIRSUCHIHAH
EPSS
24.40%
97.6th percentile
Equation Editor in Microsoft Office 2003, Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allows a remote code execution vulnerability due to the way objects are handled in memory, aka "Microsoft Word Remote Code Execution Vulnerability". This CVE is unique from CVE-2018-0804, CVE-2018-0805, and CVE-2018-0806.

Affected

21 ranges
VendorProductVersion rangeFixed in
microsoftoffice
microsoftoffice
microsoftoffice
microsoftoffice
microsoftword
microsoftword
microsoftword
microsoftword
microsoft_corporationequation_editor
msrcmicrosoft_office_2007_service_pack_3
msrcmicrosoft_office_2010_service_pack_2
msrcmicrosoft_office_2013_service_pack_1
msrcmicrosoft_office_2016
msrcmicrosoft_office_2016_click-to-run_for_32-bit_editions
msrcmicrosoft_office_2016_click-to-run_for_64-bit_editions
msrcmicrosoft_office_compatibility_pack_service_pack_3
msrcmicrosoft_word_2007_service_pack_3
msrcmicrosoft_word_2010_service_pack_2
msrcmicrosoft_word_2013_rt_service_pack_1
msrcmicrosoft_word_2013_service_pack_1
msrcmicrosoft_word_2016

Detection & IOCsextracted from sources · hover to see the quote

  • The vulnerability is triggered when a user opens a specially crafted file with an affected version of Microsoft Office or Microsoft WordPad; detection should focus on suspicious Office/WordPad file opens, particularly via email attachments or web downloads.
  • The attack vector includes email delivery of a malicious file; monitor for Office/WordPad documents delivered via email that spawn child processes or invoke Equation Editor (EQNEDT32.EXE).
  • The vulnerability resides in Equation Editor functionality; monitor for execution of EQNEDT32.EXE spawned from Office applications as a suspicious indicator.
  • ·Exploit status is publicly disclosed: No and exploited: No at time of advisory; exploitation likelihood rated 'Unlikely' for both latest and older software releases, so prevalence in the wild may be low.
  • ·The CVE-2018-0807 vulnerability is distinct from the closely related Equation Editor RCE CVEs CVE-2018-0805 and CVE-2018-0806; ensure detections and patches target the correct CVE and affected Office versions (2003, 2007, 2010, 2013, 2016).

CVSS provenance

nvdv3.08.8HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.09.3CRITICALAV:N/AC:M/Au:N/C:C/I:C/A:C
vendor_msrc8.8HIGH
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