CVE-2018-7484 Privilege escalation in n/a

High 7.8 Published Updated

Local attackers can escalate privileges to SYSTEM via DLL hijacking due to insecure library loading and permissive directory permissions in the PureVPN Windows client.

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-2018-7484?

CVE-2018-7484 is a high-severity vulnerability in n/a, published on 26 Feb 2018. 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 issue was discovered in PureVPN through 5.19.4.0 on Windows. The client installation grants the Everyone group Full Control permission to the installation directory. In addition, the PureVPNService.exe service, which runs under NT Authority\SYSTEM privileges, tries to load several dynamic-link libraries using relative paths instead of the absolute path. When not using a fully qualified path, the application will first try to load the library from the directory from which the application is started. As the residing directory of PureVPNService.exe is writable to all users, this makes the application susceptible to privilege escalation through DLL hijacking.

Weakness: CWE-426

Which versions are affected by CVE-2018-7484?

It affects 1 product.

Products include Purevpn Purevpn.

How do I fix CVE-2018-7484?

No fix has been published for CVE-2018-7484 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-7484 being exploited?

There is no known exploitation of CVE-2018-7484 in the wild and no public exploit code.

Sources

Also known as GHSA-qr57-c849-39j8.

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