CVE-2019-0948 Windows Event Viewer Information Disclosure Vulnerability

Medium 4.7 Published Updated

An attacker can read arbitrary files by tricking a user into importing a malicious XML file into Windows Event Viewer.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2019-0948?

CVE-2019-0948 is a medium-severity vulnerability in Microsoft Windows 10, published on 12 Jun 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

An information disclosure vulnerability exists in the Windows Event Viewer (eventvwr.msc) when it improperly parses XML input containing a reference to an external entity. An attacker who successfully exploited this vulnerability could read arbitrary files via an XML external entity (XXE) declaration. To exploit the vulnerability, an attacker could create a file containing specially crafted XML content and convince an authenticated user to import the file. The update addresses the vulnerability by modifying the way that the Event Viewer parses XML input.

Weakness: CWE-611

Which versions are affected by CVE-2019-0948?

It affects 8 products.

Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012 and 2 more.

How do I fix CVE-2019-0948?

No fix has been published for CVE-2019-0948 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-0948 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-0948 exists.

Public exploit code: 1 Exploit-DB entry.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-r88q-8vv9-3qmg.

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