Remote code execution in Microsoft XML Core Services

Published: 2018-09-13 18:58:47
Severity High
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2018-8420
CVSSv3 7.7 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CWE ID CWE-20
Exploitation vector Network
Public exploit Not available
Vulnerable software Windows
Windows Server
Vulnerable software versions Windows 8.1
Windows 7
Windows 10
Windows RT 8.1
Windows Server 2012
Windows Server 2012 R2
Windows Server 2008
Windows Server 2008 R2
Windows Server 2016
Vendor URL Microsoft

Security Advisory

1) Input validation error

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of user-supplied input within the Microsoft XML Core Services MSXML parser when processing malicious XML data. A remote attacker can create a specially crafted website, trick the victim into visiting it and execute arbitrary code on the target system.

Remediation

Install updates from vendor's website.

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8420

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