Vulnerability identifier: #VU25250

Vulnerability risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-0706

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft Edge
Client/Desktop applications / Web browsers
Microsoft Internet Explorer
Client/Desktop applications / Web browsers

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists in the way Microsoft browsers handle cross-origin requests. A remote attacker can create a specially crafted web page, trick the victim into visiting it and determine the origin of all of the web pages in the affected browser.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft Edge:

Microsoft Internet Explorer: 10 - 11

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0706

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.