Microsoft Excel 2016 access control

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Microsoft Excel 2016. This impacts an unknown function. The manipulation results in access control. This vulnerability is reported as CVE-2018-0841. The attack can be launched remotely. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Microsoft Excel 2016 (Spreadsheet Software). Affected is an unknown function. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Microsoft Office 2016 Click-to-Run allows a remote code execution vulnerability due to how objects are handled in memory, aka "Office Remote Code Execution Vulnerability"

The bug was discovered 02/13/2018. The weakness was disclosed 02/13/2018 with Zero Day Initiative as confirmed security update guide (Website). The advisory is shared for download at portal.msrc.microsoft.com. This vulnerability is traded as CVE-2018-0841 since 12/01/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068. The advisory points out:

A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

The vulnerability scanner Nessus provides a plugin with the ID 106803 (Security Updates for Microsoft Excel Products (February 2018)), 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 110311 (Microsoft Office and Microsoft Office Services and Web Apps Security Update February 2018).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (106803) and SecurityFocus (BID 102957†). The entries VDB-113216, VDB-113233, VDB-113234 and VDB-113235 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 106803
Nessus Name: Security Updates for Microsoft Excel Products (February 2018)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 902588
OpenVAS Name: Microsoft Office 2016 Click-to-Run (C2R) Remote Code Execution Vulnerability - Mar18
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

12/01/2017 🔍
02/13/2018 +74 days 🔍
02/13/2018 +0 days 🔍
02/13/2018 +0 days 🔍
02/13/2018 +0 days 🔍
02/13/2018 +0 days 🔍
02/14/2018 +1 days 🔍
02/14/2018 +0 days 🔍
02/03/2021 +1085 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: portal.msrc.microsoft.com
Researcher: A3F2160DCA1BDE70DA1D99ED267D5DC1EC336192 working with Trend Micro's Zero Day Initiative.
Organization: Zero Day Initiative
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-0841 (🔍)
GCVE (CVE): GCVE-0-2018-0841
GCVE (VulDB): GCVE-100-113232

OVAL: 🔍

SecurityFocus: 102957 - Microsoft Excel CVE-2018-0841 Remote Code Execution Vulnerability
SecurityTracker: 1040367

See also: 🔍

Entryinfo

Created: 02/14/2018 09:04
Updated: 02/03/2021 12:32
Changes: 02/14/2018 09:04 (76), 01/04/2020 15:54 (6), 02/03/2021 12:28 (3), 02/03/2021 12:32 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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