CVE-2024-21397 Microsoft Azure File Sync Elevation of Privilege Vulnerability

Medium 5.3 Published Updated

An attacker can exploit a path traversal flaw in Azure File Sync to elevate privileges within the system.

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-2024-21397?

CVE-2024-21397 is a medium-severity path traversal vulnerability in Microsoft Azure File Sync, published on 13 Feb 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Microsoft Azure File Sync Elevation of Privilege Vulnerability

Weakness: CWE-59

Which versions are affected by CVE-2024-21397?

It affects 1 product.

Products include Microsoft Azure File Sync.

How do I fix CVE-2024-21397?

No fix has been published for CVE-2024-21397 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-2024-21397 being exploited?

There is no known exploitation of CVE-2024-21397 in the wild and no public exploit code.

Sources

Also known as GHSA-77qj-g9f7-xqj9.

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