Microsoft Edge Security Feature input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.0$5k-$25k0.00

A vulnerability was found in Microsoft Edge (Web Browser) (version unknown) and classified as critical. Affected by this issue is an unknown function of the component Security Feature. The manipulation with an unknown input 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, and integrity.

The bug was discovered 11/14/2017. The weakness was disclosed 11/14/2017 as KB4048953 as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. This vulnerability is handled as CVE-2017-11863 since 07/31/2017. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/23/2021). The advisory points out:

A security feature bypass vulnerability exists in Microsoft Edge when the Edge Content Security Policy (CSP) fails to properly validate certain specially crafted documents. An attacker who exploited the bypass could trick a user into loading a page containing malicious content.

The vulnerability scanner Nessus provides a plugin with the ID 104552 (KB4048956: Windows 10 LTSB November 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.

Applying the patch KB4048953 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 vulnerability database at Tenable (104552). The entries 109334, 109335, 109336 and 109337 are pretty similar.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

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

NVD Base Score: 6.1
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: 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: 104552
Nessus Name: KB4048956: Windows 10 LTSB November 2017 Cumulative Update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 880598
OpenVAS Name: Microsoft Windows Multiple Vulnerabilities (KB4048956)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: KB4048953

Timelineinfo

07/31/2017 🔍
11/14/2017 +106 days 🔍
11/14/2017 +0 days 🔍
11/14/2017 +0 days 🔍
11/14/2017 +0 days 🔍
11/14/2017 +0 days 🔍
11/14/2017 +0 days 🔍
11/15/2017 +1 days 🔍
01/23/2021 +1165 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: KB4048953
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-11863 (🔍)
OVAL: 🔍

SecurityTracker: 1039801
SecurityFocus: 101748 - Microsoft Edge Content Security Policy CVE-2017-11863 Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 11/15/2017 10:57
Updated: 01/23/2021 16:17
Changes: 11/15/2017 10:57 (85), 12/06/2019 11:38 (5), 01/23/2021 16:17 (3)
Complete: 🔍

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