Microsoft Excel up to 2016 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Excel 2007 SP3/2010 SP2/2013 RT SP1/2013 SP1/2016 and classified as critical. The affected element is an unknown function. The manipulation results in memory corruption. This vulnerability is known as CVE-2017-8744. It is possible to launch the attack remotely. No exploit is available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in Microsoft Excel 2007 SP3/2010 SP2/2013 RT SP1/2013 SP1/2016 (Spreadsheet Software). It has been classified as critical. Affected is an unknown code. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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, and Microsoft Excel 2016 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-2017-8731.

The bug was discovered 09/12/2017. The weakness was published 09/12/2017 with Zero Day Initiative as KB3213564 as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. This vulnerability is traded as CVE-2017-8744 since 05/03/2017. 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. 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 KB3213564 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 databases at Tenable (103133) and SecurityFocus (BID 100748†). Similar entries are available at VDB-106470, VDB-106473, VDB-106474 and VDB-106475. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.0
VulDB 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: 🔍

CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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 2007 Service Pack 3 Remote Code Execution Vulnerability (KB3213646)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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0-Day Time: 🔍
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Patch: KB3213564

Timelineinfo

05/03/2017 🔍
09/12/2017 +132 days 🔍
09/12/2017 +0 days 🔍
09/12/2017 +0 days 🔍
09/12/2017 +0 days 🔍
09/12/2017 +0 days 🔍
09/12/2017 +0 days 🔍
09/13/2017 +1 days 🔍
01/12/2021 +1217 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: KB3213564
Researcher: Lucas Leong
Organization: Zero Day Initiative
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-8744 (🔍)
GCVE (CVE): GCVE-0-2017-8744
GCVE (VulDB): GCVE-100-106530

OVAL: 🔍

SecurityFocus: 100748 - Microsoft Office CVE-2017-8744 Remote Code Execution Vulnerability
SecurityTracker: 1039315

See also: 🔍

Entryinfo

Created: 09/13/2017 14:34
Updated: 01/12/2021 12:12
Changes: 09/13/2017 14:34 (73), 11/15/2019 15:48 (12), 01/12/2021 12:08 (2), 01/12/2021 12:12 (1)
Complete: 🔍
Cache ID: 216::103

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