CVE-2020-4019 Path traversal in Companion App
Local attackers can execute arbitrary code by exploiting an untrusted search path vulnerability in the file editing functionality.
- 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-2020-4019?
CVE-2020-4019 is a high-severity path traversal vulnerability in Atlassian Companion App, published on 1 Jun 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 file editing functionality in the Atlassian Companion App before version 1.0.0 allows local attackers to have the app run a different executable in place of the app's cmd.exe via a untrusted search path vulnerability.
Weakness: CWE-426
Which versions are affected by CVE-2020-4019?
It affects 1 product.
Products include Atlassian Companion.
How do I fix CVE-2020-4019?
No fix has been published for CVE-2020-4019 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2020-4019 being exploited?
There is no known exploitation of CVE-2020-4019 in the wild and no public exploit code.
Other vulnerabilities in Atlassian Companion App
Sources
Also known as GHSA-vcrx-86h7-q9f8.