Microsoft Office Object 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 classified as critical has been found in Microsoft Office. This vulnerability affects unknown code of the component Object Handler. The manipulation leads to memory corruption. This vulnerability is listed as CVE-2017-0243. The attack may be initiated remotely. There is no available exploit. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Office (Office Suite Software) (version now known). This issue affects some unknown processing of the component Object Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Microsoft Office allows a remote code execution vulnerability due to the way that it handles objects in memory, aka "Microsoft Office Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-8570.

The bug was discovered 07/11/2017. The weakness was presented 07/11/2017 by Sean as KB3203459 as confirmed security update guide (Website). It is possible to read the advisory at portal.msrc.microsoft.com. The identification of this vulnerability is CVE-2017-0243 since 09/09/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 101371 (Security Update for Microsoft Office Products (July 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 110300 (Microsoft Office and Microsoft Office Services and Web Apps Security Update July 2017).

Applying the patch KB3203459 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 (101371) and SecurityFocus (BID 99446†). See VDB-103421, VDB-103422, VDB-103433 and VDB-103434 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

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

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Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 101371
Nessus Name: Security Update for Microsoft Office Products (July 2017)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802136
OpenVAS Name: Microsoft Office 2010 Service Pack 2 Remote Code Execution Vulnerability (KB3203468)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: KB3203459

Timelineinfo

09/09/2016 🔍
07/11/2017 +305 days 🔍
07/11/2017 +0 days 🔍
07/11/2017 +0 days 🔍
07/11/2017 +0 days 🔍
07/11/2017 +0 days 🔍
07/11/2017 +0 days 🔍
07/12/2017 +1 days 🔍
12/31/2020 +1268 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: KB3203459
Researcher: @j00sean (Sean)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-0243 (🔍)
GCVE (CVE): GCVE-0-2017-0243
GCVE (VulDB): GCVE-100-103403

OVAL: 🔍

SecurityFocus: 99446 - Microsoft Office CVE-2017-0243 Remote Code Execution Vulnerability
SecurityTracker: 1038851

See also: 🔍

Entryinfo

Created: 07/12/2017 10:31
Updated: 12/31/2020 15:44
Changes: 07/12/2017 10:31 (79), 10/24/2019 17:33 (5), 12/31/2020 15:39 (3), 12/31/2020 15:44 (1)
Complete: 🔍
Cache ID: 216::103

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