Microsoft Edge Security Feature 7pk security

Summaryinfo

A vulnerability identified as critical has been detected in Microsoft Edge. The affected element is an unknown function of the component Security Feature. This manipulation causes 7pk security. This vulnerability is registered as CVE-2019-0762. Remote exploitation of the attack is possible. No exploit is available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability has been found in Microsoft Edge (Web Browser) (affected version not known) and classified as critical. Affected by this vulnerability is some unknown functionality of the component Security Feature. The manipulation with an unknown input leads to a 7pk security vulnerability. The CWE definition for the vulnerability is CWE-254. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A security feature bypass vulnerability exists when Microsoft browsers improperly handle requests of different origins, aka 'Microsoft Browsers Security Feature Bypass Vulnerability'.

The bug was discovered 03/12/2019. The weakness was published 03/12/2019 as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. The public release has been coordinated with Microsoft. This vulnerability is known as CVE-2019-0762 since 11/26/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. 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 05/16/2020). MITRE ATT&CK project uses the attack technique T1211 for this issue. The advisory points out:

A security feature bypass vulnerability exists when Microsoft browsers improperly handle requests of different origins. The vulnerability allows Microsoft browsers to bypass Same-Site cookie restrictions, and to allow requests that should otherwise be ignored. An attacker who successfully exploited the vulnerability could force the browser to send data that would otherwise be restricted.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 100363 (Microsoft Internet Explorer Security Update for March 2019).

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

Similar entries are available at VDB-131618, VDB-131620, VDB-131621 and VDB-131623. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Web Browser

Vendor

• Microsoft

Name

• Edge

License

• commercial

Website

• Vendor: https://www.microsoft.com/

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Entryinfo

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

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