CVE-2019-3749 Path traversal in Dell Command Update (DCU)

Medium 5.6 Published Updated

A local attacker can delete arbitrary files via symlink exploitation due to incorrect directory permissions in Dell Command Update.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2019-3749?

CVE-2019-3749 is a medium-severity path traversal vulnerability in Dell Command Update (DCU), published on 3 Dec 2019. 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

Dell Command Update versions prior to 3.1 contain an Arbitrary File Deletion Vulnerability. A local authenticated malicious user with low privileges potentially could exploit this vulnerability to delete arbitrary files by creating a symlink from the "Temp\ICProgress\Dell_InventoryCollector_Progress.xml" to any targeted file. This issue occurs because permissions on the Temp directory were set incorrectly.

Weakness: CWE-59, CWE-427

Which versions are affected by CVE-2019-3749?

It affects 1 product.

Products include Dell Command Update.

How do I fix CVE-2019-3749?

No fix has been published for CVE-2019-3749 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-2019-3749 being exploited?

There is no known exploitation of CVE-2019-3749 in the wild and no public exploit code.

Sources

Also known as GHSA-f6pq-354j-4f2p.

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