What is CVE-2020-3238?

CVE-2020-3238 is a vulnerability in the Cisco Application Framework component of the Cisco IOx application environment that allows an authenticated, remote attacker to write or modify arbitrary files on the affected device.

How severe is CVE-2020-3238?

CVE-2020-3238 has a severity score of 8.1 out of 10, indicating a high severity.

What software is affected by CVE-2020-3238?

The vulnerability affects Cisco IOx version up to and excluding 1.9.0.

How can an attacker exploit CVE-2020-3238?

An attacker with authenticated access to the affected device can exploit CVE-2020-3238 by writing or modifying arbitrary files in the virtual instance running on the device.

Is there a fix available for CVE-2020-3238?

Cisco has released a security advisory with information on how to mitigate the vulnerability. Please refer to the reference provided for more details.

Vulnerability/
CVE-2020-3238

high

8.1

CWE

3/6/2020

15/11/2024

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

First published: Wed Jun 03 2020(Updated: )

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.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco IOx	<1.9.0

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Reference Links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-caf-3dXM8exv

Frequently Asked Questions

What is CVE-2020-3238?
CVE-2020-3238 is a vulnerability in the Cisco Application Framework component of the Cisco IOx application environment that allows an authenticated, remote attacker to write or modify arbitrary files on the affected device.
How severe is CVE-2020-3238?
CVE-2020-3238 has a severity score of 8.1 out of 10, indicating a high severity.
What software is affected by CVE-2020-3238?
The vulnerability affects Cisco IOx version up to and excluding 1.9.0.
How can an attacker exploit CVE-2020-3238?
An attacker with authenticated access to the affected device can exploit CVE-2020-3238 by writing or modifying arbitrary files in the virtual instance running on the device.
Is there a fix available for CVE-2020-3238?
Cisco has released a security advisory with information on how to mitigate the vulnerability. Please refer to the reference provided for more details.

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