Microsoft Windows 7 SP1/Server 2008 R2 SP1/Server 2008 SP2 ActiveX Object Memory information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Microsoft Windows 7 SP1/Server 2008 R2 SP1/Server 2008 SP2. This impacts an unknown function of the component ActiveX Object Handler. This manipulation causes information disclosure (Memory). This vulnerability is handled as CVE-2017-0242. The attack can be initiated remotely. There is not any exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability has been found in Microsoft Windows 7 SP1/Server 2008 R2 SP1/Server 2008 SP2 (Operating System) and classified as critical. Affected by this vulnerability is an unknown functionality of the component ActiveX Object Handler. The manipulation with an unknown input leads to a information disclosure vulnerability (Memory). The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An information disclosure vulnerability exists in the way some ActiveX objects are instantiated, aka "Microsoft ActiveX Information Disclosure Vulnerability."

The bug was discovered 05/09/2017. The weakness was released 05/09/2017 with Microsoft as 4018927 as confirmed security update guide (Website). It is possible to read the advisory at portal.msrc.microsoft.com. This vulnerability is known as CVE-2017-0242 since 09/09/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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 attack technique deployed by this issue is T1592 according to MITRE ATT&CK. The advisory points out:

An information disclosure vulnerability exists in the way some ActiveX objects are instantiated. An attacker who successfully exploited this vulnerability could gain access to protected memory contents.

The vulnerability scanner Nessus provides a plugin with the ID 100063 (Windows 2008 May 2017 Multiple Security Updates), 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 91369 (Microsoft Windows Security Update May 2017).

Applying the patch 4018927 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 (100063) and SecurityFocus (BID 98275†). Entries connected to this vulnerability are available at VDB-100999, VDB-101004, VDB-101021 and VDB-101023. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.0

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 4.2
Vendor Vector (Microsoft): 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Name: Memory
Class: Information disclosure / Memory
CWE: CWE-200 / CWE-284 / CWE-266
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: 100063
Nessus Name: Windows 2008 May 2017 Multiple Security Updates
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801966
OpenVAS Name: Microsoft ActiveX Msadcf.dll Information Disclosure Vulnerability (4018927)
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: 4018927

Timelineinfo

09/09/2016 🔍
05/09/2017 +242 days 🔍
05/09/2017 +0 days 🔍
05/09/2017 +0 days 🔍
05/09/2017 +0 days 🔍
05/09/2017 +0 days 🔍
05/10/2017 +1 days 🔍
05/12/2017 +2 days 🔍
12/22/2020 +1320 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: 4018927
Researcher: Microsoft
Organization: Microsoft
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-0242 (🔍)
GCVE (CVE): GCVE-0-2017-0242
GCVE (VulDB): GCVE-100-101011

OVAL: 🔍

SecurityFocus: 98275 - Microsoft Windows CVE-2017-0242 ActiveX Control Local Information Disclosure Vulnerability
OSVDB: - CVE-2017-0242 - Microsoft - Windows - Information Disclosure Issue

scip Labs: https://www.scip.ch/en/?labs.20140213
See also: 🔍

Entryinfo

Created: 05/10/2017 12:20
Updated: 12/22/2020 18:35
Changes: 05/10/2017 12:20 (92), 09/25/2020 09:04 (7), 12/22/2020 18:35 (3)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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