Microsoft Internet Explorer 11 Security Feature 7pk security

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Microsoft Internet Explorer 11. This impacts an unknown function of the component Security Feature. Performing a manipulation results in 7pk security. This vulnerability is cataloged as CVE-2018-8126. The attack must be initiated from a local position. There is no exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Microsoft Internet Explorer 11 (Web Browser). This affects an unknown functionality of the component Security Feature. The manipulation with an unknown input leads to a 7pk security vulnerability. CWE is classifying the issue as CWE-254. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A security feature bypass vulnerability exists when Internet Explorer fails to validate User Mode Code Integrity (UMCI) policies, aka "Internet Explorer Security Feature Bypass Vulnerability." This affects Internet Explorer 11.

The bug was discovered 05/08/2018. The weakness was shared 05/08/2018 by Matt as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. The vendor cooperated in the coordination of the public release. This vulnerability is uniquely identified as CVE-2018-8126 since 03/14/2018. An attack has to be approached locally. The successful exploitation needs a authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1211 for this issue. The advisory points out:

A security feature bypass vulnerability exists when Internet Explorer fails to validate User Mode Code Integrity (UMCI) policies. The vulnerability could allow an attacker to bypass Device Guard UMCI policies.

The vulnerability scanner Nessus provides a plugin with the ID 109611 (KB4103731: Windows 10 Version 1703 May 2018 Security 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 100335 (Microsoft Internet Explorer Security Update for May 2018).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (109611) and SecurityFocus (BID 103997†). The entries VDB-117444, VDB-117445, VDB-117446 and VDB-117447 are related to this item. 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: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 5.3
Vendor Vector (Microsoft): 🔍

NVD Base Score: 8.8
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: 7pk security
CWE: CWE-254
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: 109611
Nessus Name: KB4103731: Windows 10 Version 1703 May 2018 Security Update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53775
OpenVAS Name: Microsoft Windows Multiple Vulnerabilities (KB4103727)
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: 🔍

Timelineinfo

03/14/2018 🔍
05/08/2018 +55 days 🔍
05/08/2018 +0 days 🔍
05/08/2018 +0 days 🔍
05/08/2018 +0 days 🔍
05/08/2018 +0 days 🔍
05/09/2018 +0 days 🔍
05/09/2018 +0 days 🔍
03/11/2023 +1767 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: portal.msrc.microsoft.com
Researcher: Matt
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2018-8126 (🔍)
GCVE (CVE): GCVE-0-2018-8126
GCVE (VulDB): GCVE-100-117489

OVAL: 🔍

SecurityFocus: 103997 - Microsoft Internet Explorer CVE-2018-8126 Security Bypass Vulnerability
SecurityTracker: 1040846

See also: 🔍

Entryinfo

Created: 05/09/2018 14:52
Updated: 03/11/2023 09:32
Changes: 05/09/2018 14:52 (89), 02/03/2020 13:51 (6), 03/11/2023 09:32 (4)
Complete: 🔍
Cache ID: 216::103

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

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