Microsoft Windows up to Server 2016 Error Reporting access control

CVSS Meta Temp Score
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CTI Interest Score
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7.2$5k-$25k0.00

Summaryinfo

A vulnerability has been found in Microsoft Windows up to Server 2016 and classified as problematic. Affected by this vulnerability is an unknown functionality of the component Error Reporting. The manipulation leads to access control. This vulnerability is uniquely identified as CVE-2017-8633. The attack is possible to be carried out remotely. No exploit exists. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows up to Server 2016 (Operating System) and classified as critical. This issue affects an unknown part of the component Error Reporting. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Windows Error Reporting (WER) in Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allows an elevation of privilege vulnerability, aka "Windows Error Reporting Elevation of Privilege Vulnerability".

The bug was discovered 08/08/2017. The weakness was disclosed 08/08/2017 with Zero Day Initiative as KB4034658 as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. The identification of this vulnerability is CVE-2017-8633 since 05/03/2017. The exploitation is known to be difficult. The attack may be initiated remotely. A simple authentication is necessary for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 01/07/2021). MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 102264 (KB4034658: Windows 10 Version 1607 and Windows Server 2016 August 2017 Cumulative Update), 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 91405 (Microsoft Windows Security Update August 2017).

Applying the patch KB4034658 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 (102264) and SecurityFocus (BID 100069†). The entries VDB-102409, VDB-104989, VDB-104990 and VDB-104991 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 7.5
Vendor Vector (Microsoft): 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 102264
Nessus Name: KB4034658: Windows 10 Version 1607 and Windows Server 2016 August 2017 Cumulative Update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802136
OpenVAS Name: Microsoft Windows Error Reporting Elevation of Privilege Vulnerability (KB4035679)
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: 🔍

Patch: KB4034658

Timelineinfo

05/03/2017 🔍
08/08/2017 +97 days 🔍
08/08/2017 +0 days 🔍
08/08/2017 +0 days 🔍
08/08/2017 +0 days 🔍
08/08/2017 +0 days 🔍
08/08/2017 +0 days 🔍
08/09/2017 +1 days 🔍
01/07/2021 +1247 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: KB4034658
Researcher: Thomas Vanhoutte working with Trend Micro's Zero Day Initiative.
Organization: Zero Day Initiative
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-8633 (🔍)
GCVE (CVE): GCVE-0-2017-8633
GCVE (VulDB): GCVE-100-105017

OVAL: 🔍

SecurityFocus: 100069 - Microsoft Windows Error Reporting CVE-2017-8633 Remote Privilege Escalation Vulnerability
SecurityTracker: 1039102

scip Labs: https://www.scip.ch/en/?labs.20161215
See also: 🔍

Entryinfo

Created: 08/09/2017 11:50
Updated: 01/07/2021 17:54
Changes: 08/09/2017 11:50 (89), 06/06/2020 09:17 (6), 01/07/2021 17:50 (3), 01/07/2021 17:54 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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