Vulnerability identifier: #VU45631

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-1476

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Microsoft .NET Framework
Server applications / Frameworks for developing and running applications

Vendor: Microsoft

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to ASP.NET or .NET web applications running on IIS improperly allow access to cached files. A local user can send a specially crafted request and gain elevated privileges on the target system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Microsoft .NET Framework: 4.8, 2.0, 4.5.2, 4.6, 3.5, 3.5.1

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1476

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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