CVE-2017-16928 Path traversal in n/a

High 7.8 Published Updated

Local attackers can exploit a path traversal flaw in the Arq updater to write arbitrary files and gain root privileges on Mac systems.

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-2017-16928?

CVE-2017-16928 is a high-severity path traversal vulnerability in n/a, published on 31 Jan 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The arq_updater binary in Arq 5.10 and earlier for Mac allows local users to write to arbitrary files and consequently gain root privileges via a crafted update URL, as demonstrated by file:///tmp/blah/Arq.zip.

Weakness: CWE-732

Which versions are affected by CVE-2017-16928?

It affects 1 product.

Products include Haystacksoftware Arq.

How do I fix CVE-2017-16928?

No fix has been published for CVE-2017-16928 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-2017-16928 being exploited?

There is no known exploitation of CVE-2017-16928 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-5xhf-rj7x-hqqx.

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