#VU14376 Privilege escalation in Microsoft Edge - CVE-2018-8357

Vulnerability identifier: #VU14376

Vulnerability risk: Low

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-8357

CWE-ID: CWE-264

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 gain elevated privileges on the target system.

The vulnerability exists due to sandbox escape. A remote unauthenticated attacker can trick the victim into visiting a specially crafted website and use the sandbox escape to elevate privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft Edge: All versions

---

External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8357

---

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.