This security advisory describes one medium risk vulnerability.

1) Input validation error

Severity: Medium

CVSSv3:
6.5 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID:
CVE-2020-0660

CWE-ID:
CWE-20 – Improper Input Validation

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input within the Remote Desktop Protocol (RDP). A remote attacker can send a specially crafted request and crash the RDP service on the target system.

Mitigation

Install updates from vendor’s website.

Vulnerable software versions

Windows:
8.1, 10, 10 1607, 10 1709, 10 1803, 10 1809, 10 1903, 10 1909, RT 8.1

Windows Server:
1803, 1903, 1909, 2012, 2012 R2, 2016, 2019

CPE
External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0660

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.





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