CVE-2019-16896 Path traversal in n/a

High 7.8 Published Updated

An attacker can exploit improper privilege validation in the backup module to perform arbitrary file writes via symbolic links, 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-2019-16896?

CVE-2019-16896 is a high-severity path traversal vulnerability in n/a, published on 27 Dec 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In K7 Ultimate Security 16.0.0117, the module K7BKCExt.dll (aka the backup module) improperly validates the administrative privileges of the user, allowing an arbitrary file write via a symbolic link attack with file restoration functionality.

Weakness: CWE-59

Which versions are affected by CVE-2019-16896?

It affects 1 product.

Products include K7computing K7 Ultimate Security.

How do I fix CVE-2019-16896?

No fix has been published for CVE-2019-16896 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-2019-16896 being exploited?

There is no known exploitation of CVE-2019-16896 in the wild and no public exploit code.

Sources

Also known as GHSA-9qgf-qmmg-fc5c.

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