CVE-2020-3238 Cisco IOx Application Framework Arbitrary File Creation Vulnerability

High 8.1 Published Updated

An authenticated attacker can upload a malicious package to write or modify arbitrary files within the Cisco IOx virtual instance.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-3238?

CVE-2020-3238 is a high-severity vulnerability in Cisco IOx, published on 3 Jun 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in the Cisco Application Framework component of the Cisco IOx application environment could allow an authenticated, remote attacker to write or modify arbitrary files in the virtual instance that is running on the affected device. The vulnerability is due to insufficient input validation of user-supplied application packages. An attacker who can upload a malicious package within Cisco IOx could exploit the vulnerability to modify arbitrary files. The impacts of a successful exploit are limited to the scope of the virtual instance and do not affect the device that is hosting Cisco IOx.

Weakness: CWE-20

Which versions are affected by CVE-2020-3238?

It affects 1 product.

Products include Cisco Iox.

How do I fix CVE-2020-3238?

No fix has been published for CVE-2020-3238 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-3238 being exploited?

There is no known exploitation of CVE-2020-3238 in the wild and no public exploit code.

Sources

Also known as GHSA-vwph-w88h-2p73.

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