CVE-2019-20406 Privilege escalation in Confluence Data Center

High 7.8 Published Updated

Local attackers can escalate privileges and execute code via DLL hijacking in Confluence on Windows by writing to a directory in the global path.

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-2019-20406?

CVE-2019-20406 is a high-severity vulnerability in Atlassian Confluence Data Center, published on 6 Feb 2020. 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

The usage of Tomcat in Confluence on the Microsoft Windows operating system before version 7.0.5, and from version 7.1.0 before version 7.1.1 allows local system attackers who have permission to write a DLL file in a directory in the global path environmental variable variable to inject code & escalate their privileges via a DLL hijacking vulnerability.

Weakness: CWE-427

Which versions are affected by CVE-2019-20406?

It affects 2 products.

Products include Atlassian Confluence, Atlassian Confluence Server.

How do I fix CVE-2019-20406?

No fix has been published for CVE-2019-20406 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-20406 being exploited?

There is no known exploitation of CVE-2019-20406 in the wild and no public exploit code.

Sources

Also known as GHSA-gw5q-m62q-j9vf.

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