CVE-2020-15076 Path traversal in Private Tunnel

High 7.8 Published Updated

An attacker can corrupt system critical files via symlink attacks in /tmp during installation, potentially leading to privilege escalation.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-15076?

CVE-2020-15076 is a high-severity path traversal vulnerability in Private Tunnel, published on 26 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Private Tunnel installer for macOS version 3.0.1 and older versions may corrupt system critical files it should not have access via symlinks in /tmp.

Weakness: CWE-59, CWE-61

Which versions are affected by CVE-2020-15076?

It affects 1 product.

Products include Openvpn Private Tunnel.

How do I fix CVE-2020-15076?

No fix has been published for CVE-2020-15076 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-2020-15076 being exploited?

There is no known exploitation of CVE-2020-15076 in the wild and no public exploit code.

Sources

Also known as GHSA-r7xj-75mx-fcrr.

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