#VU50399 Security features bypass in Microsoft Edge - CVE-2021-24113

Vulnerability identifier: #VU50399

Vulnerability risk: Medium

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

CVE-ID: CVE-2021-24113

CWE-ID: CWE-254

Exploitation vector: Network

Exploit availability: No

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

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to Microsoft Edge allows JavaScript to be executed in URL when copying then pasting it in the Edge browser. A remote attacker can trick the victim to copy and paste a specially crafted URL and execute arbitrary JavaScript code in victim's browser.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft Edge: 79.0.309.71, 83.0.478.37, 84.0.522.40, 88.0.705.50

---

External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24113

---

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.