Privilege escalation in Microsoft Edge based on Chromium



Published: 2020-07-20
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-1341
CWE-ID CWE-427
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe
Microsoft Edge
Client/Desktop applications / Web browsers

Vendor Microsoft

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Insecure DLL loading

EUVDB-ID: #VU31684

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-1341

CWE-ID: CWE-427 - Uncontrolled Search Path Element

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to DLL files are allowed to download without prompting additional warning to the user. A remote attacker can trick a victim to visit a specially crafted website to drop the DLL files on the users Download folder (or equivalent) and gain elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Edge: before 84.0.522.40

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1341


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.



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