VDB-122972 · CVE-2018-8388 · BID 105025

Microsoft Edge HTML Content input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

A vulnerability was found in Microsoft Edge (Web Browser) (the affected version unknown) and classified as critical. Affected by this issue is an unknown part. The manipulation as part of a HTML Content leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A spoofing vulnerability exists when Microsoft Edge improperly handles specific HTML content, aka "Microsoft Edge Spoofing Vulnerability." This affects Microsoft Edge. This CVE ID is unique from CVE-2018-8383.

The bug was discovered 08/14/2018. The weakness was disclosed 08/14/2018 by Gareth Heyes as confirmed security update guide (Website). The advisory is shared for download at portal.msrc.microsoft.com. The public release has been coordinated in cooperation with the vendor. This vulnerability is handled as CVE-2018-8388 since 03/13/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/02/2023). The advisory points out:

A spoofing vulnerability exists when Microsoft Edge improperly handles specific HTML content. An attacker who successfully exploited this vulnerability could trick a user into believing that the user was on a legitimate website. The specially crafted website could either spoof content or serve as a pivot to chain an attack with other vulnerabilities in web services.

The vulnerability scanner Nessus provides a plugin with the ID 111685 (KB4343887: Windows 10 Version 1607 and Windows Server 2016 August 2018 Security Update (Foreshadow)), 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 91464 (Microsoft Edge Security Update for August 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 vulnerability database at Tenable (111685). The entries 122825, 122827, 122828 and 122829 are pretty similar.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 5.4
Vendor Vector (Microsoft): 🔍

NVD Base Score: 4.3
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CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 111685
Nessus Name: KB4343887: Windows 10 Version 1607 and Windows Server 2016 August 2018 Security Update (Foreshadow)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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Timelineinfo

03/13/2018 🔍
08/14/2018 +153 days 🔍
08/14/2018 +0 days 🔍
08/14/2018 +0 days 🔍
08/14/2018 +0 days 🔍
08/14/2018 +0 days 🔍
08/15/2018 +0 days 🔍
08/16/2018 +1 days 🔍
05/02/2023 +1720 days 🔍

Sourcesinfo

Vendor: microsoft.com

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

CVE: CVE-2018-8388 (🔍)
OVAL: 🔍

SecurityTracker: 1041457
SecurityFocus: 105025 - Microsoft Edge CVE-2018-8388 Spoofing Vulnerability

See also: 🔍

Entryinfo

Created: 08/16/2018 06:39 AM
Updated: 05/02/2023 11:40 AM
Changes: 08/16/2018 06:39 AM (86), 03/16/2020 09:39 AM (5), 05/02/2023 11:40 AM (4)
Complete: 🔍

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