CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
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6.7 | $0-$5k | 0.00 |
A vulnerability has been found in Microsoft Office 2016 (Office Suite Software) and classified as critical. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
Microsoft Office 2016 allows a remote code execution vulnerability when it fails to properly handle objects in memory, aka "Microsoft Office Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-8631, CVE-2017-8632, and CVE-2017-8744.
The bug was discovered 09/12/2017. The weakness was shared 09/12/2017 with McAfee as KB3203474 as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. This vulnerability was named CVE-2017-8630 since 05/03/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The advisory points out:
A remote code execution vulnerability exists in Microsoft Office software when it fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could use a specially crafted file to perform actions in the security context of the current user. For example, the file could then take actions on behalf of the logged-on user with the same permissions as the current user. Exploitation of this vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Office software.
The vulnerability scanner Nessus provides a plugin with the ID 103133 (Security Updates for Microsoft Office Products (September 2017)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 110303 (Microsoft Office and Microsoft Office Services and Web Apps Security Update September 2017).
Applying the patch KB3203474 is able to eliminate this problem. The bugfix is ready for download at catalog.update.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (103133). The entries 106470, 106473, 106475 and 106476 are related to this item.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
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CVSSv3
VulDB Meta Base Score: 7.0VulDB Meta Temp Score: 6.9
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CVSSv2
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Exploiting
Class: Memory corruptionCWE: CWE-119
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
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Nessus ID: 103133
Nessus Name: Security Updates for Microsoft Office Products (September 2017)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 802136
OpenVAS Name: Microsoft Office 2016 Remote Code Execution Vulnerability (KB3203474)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
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Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: KB3203474
Timeline
05/03/2017 🔍09/12/2017 🔍
09/12/2017 🔍
09/12/2017 🔍
09/12/2017 🔍
09/12/2017 🔍
09/12/2017 🔍
09/13/2017 🔍
01/11/2021 🔍
Sources
Vendor: microsoft.comAdvisory: KB3203474
Researcher: Debasish Mandal
Organization: McAfee
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2017-8630 (🔍)
OVAL: 🔍
SecurityTracker: 1039315
SecurityFocus: 100732 - Microsoft Office CVE-2017-8630 Remote Code Execution Vulnerability
See also: 🔍
Entry
Created: 09/13/2017 13:03Updated: 01/11/2021 18:52
Changes: 09/13/2017 13:03 (74), 11/15/2019 14:04 (12), 01/11/2021 18:47 (2), 01/11/2021 18:52 (1)
Complete: 🔍
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