Microsoft Edge on Win10/Server 2016 Javascript XML DOM Object information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Edge on Win10/Server 2016. It has been rated as problematic. Affected by this issue is some unknown functionality of the component Javascript XML DOM Object Handler. Performing a manipulation results in information disclosure. This vulnerability was named CVE-2017-8498. The attack may be initiated remotely. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Microsoft Edge on Win10/Server 2016 (Web Browser) (version unknown). It has been classified as problematic. This affects an unknown function of the component Javascript XML DOM Object Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

Microsoft Edge in Windows 10 1607 and 1703, and Windows Server 2016 allows an attacker to read data not intended to be disclosed when Edge allows JavaScript XML DOM objects to detect installed browser extensions, aka "Microsoft Edge Information Disclosure Vulnerability". This CVE ID is unique from CVE-2017-8504.

The bug was discovered 06/13/2017. The weakness was presented 06/13/2017 as KB4022715 as confirmed security update guide (Website). It is possible to read the advisory at portal.msrc.microsoft.com. This vulnerability is uniquely identified as CVE-2017-8498 since 05/03/2017. It is possible to initiate the attack remotely. No form of authentication is needed for 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 attack technique deployed by this issue is T1592 according to MITRE ATT&CK. The advisory points out:

An information disclosure vulnerability exists in Microsoft Edge that allows JavaScript XML DOM objects to detect installed browser extensions.

The vulnerability scanner Nessus provides a plugin with the ID 100760 (KB4022715: Windows 10 Version 1607 and Windows Server 2016 June 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 91384 (Microsoft Edge Security Update for June 2017).

Applying the patch KB4022715 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 (100760) and SecurityFocus (BID 98886†). See VDB-102374, VDB-102378, VDB-102379 and VDB-102380 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 4.3
Vendor Vector (Microsoft): 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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: 100760
Nessus Name: KB4022715: Windows 10 Version 1607 and Windows Server 2016 June 2017 Cumulative Update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802136
OpenVAS Name: Microsoft Windows Multiple Vulnerabilites (KB4022725)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: KB4022715

Timelineinfo

05/03/2017 🔍
06/13/2017 +41 days 🔍
06/13/2017 +0 days 🔍
06/13/2017 +0 days 🔍
06/13/2017 +0 days 🔍
06/13/2017 +0 days 🔍
06/14/2017 +1 days 🔍
06/15/2017 +1 days 🔍
10/18/2019 +855 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: KB4022715
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-8498 (🔍)
GCVE (CVE): GCVE-0-2017-8498
GCVE (VulDB): GCVE-100-102543

OVAL: 🔍

SecurityFocus: 98886 - Microsoft Edge CVE-2017-8498 Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 06/15/2017 10:20
Updated: 10/18/2019 09:40
Changes: 06/15/2017 10:20 (90), 10/18/2019 09:40 (4)
Complete: 🔍
Cache ID: 216::103

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