Microsoft Edge Security Feature Bypass Vulnerability

1) Same-origin policy bypass

EUVDB-ID: #VU5988

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-0135

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to improper handling of HTML elements present in other browser windows. A remote attacker can trick the victim to visit a specially crafted web page, bypass  same-origin policy restrictions and gain access to potentially sensitive information located in a separate browser window.

Mitigation

Install updates from Microsoft website.

Vulnerable software versions

Microsoft Edge: All versions

CPE2.3

• cpe:2.3:a:microsoft:edge:*:*:*:*:*:*:*:*

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0135

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.