SB2020011432 - Multiple vulnerabilities in Microsoft .NET Framework and Core

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Input validation error (CVE-ID: CVE-2020-0605)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insufficient validation of user-supplied input when the software fails to check the source markup of a file. A remote attacker can trick a victim to open s specially crafted file and execute arbitrary code in the context of the current user.

2) Input validation error (CVE-ID: CVE-2020-0606)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insufficient validation of user-supplied input when the software fails to check the source markup of a file. A remote attacker can trick a victim to open s specially crafted file and execute arbitrary code in the context of the current user.

3) Input validation error (CVE-ID: CVE-2020-0646)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insufficient validation of user-supplied input in the Microsoft .NET Framework. A remote attacker can pass specific input to an application utilizing susceptible .Net methods and execute arbitrary code on the target system.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0605
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0606
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0646