What is the severity of CVE-2024-20421?

The CVE-2024-20421 vulnerability is classified as a high severity vulnerability due to the possibility of remote exploitation without authentication.

How do I fix CVE-2024-20421?

To mitigate CVE-2024-20421, update the Cisco ATA 190 Series Analog Telephone Adapter firmware to a version that addresses this vulnerability.

What devices are affected by CVE-2024-20421?

CVE-2024-20421 affects the Cisco ATA 191 and ATA 192 Series Analog Telephone Adapters running specific vulnerable firmware versions.

What kind of attack can be executed through CVE-2024-20421?

CVE-2024-20421 allows an unauthenticated attacker to perform a cross-site request forgery (CSRF) attack on affected devices.

Is authentication required to exploit CVE-2024-20421?

No, CVE-2024-20421 can be exploited without any authentication, making it more critical.

Vulnerability/
CVE-2024-20421

high

7.1

CWE

352

16/10/2024

31/10/2024

CVE-2024-20421: Cisco ATA 190 Series Analog Telephone Adapter Firmware Cross-Site Request Forgery Vulnerability

First published: Wed Oct 16 2024(Updated: )

A vulnerability in the web-based management interface of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack and perform arbitrary actions on an affected device. This vulnerability is due to insufficient CSRF protections for the web-based management interface of an affected device. An attacker could exploit this vulnerability by persuading a user to follow a crafted link. A successful exploit could allow the attacker to perform arbitrary actions on the affected device with the privileges of the targeted user.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
All of
Cisco ATA 191	<12.0.2
Cisco ATA
All of
Cisco ATA 191	<11.2.5
Cisco ATA
All of
Cisco ATA 192	<11.2.5
Cisco ATA

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Reference Links

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ata19x-multi-RDTEqRsy

Frequently Asked Questions

What is the severity of CVE-2024-20421?
The CVE-2024-20421 vulnerability is classified as a high severity vulnerability due to the possibility of remote exploitation without authentication.
How do I fix CVE-2024-20421?
To mitigate CVE-2024-20421, update the Cisco ATA 190 Series Analog Telephone Adapter firmware to a version that addresses this vulnerability.
What devices are affected by CVE-2024-20421?
CVE-2024-20421 affects the Cisco ATA 191 and ATA 192 Series Analog Telephone Adapters running specific vulnerable firmware versions.
What kind of attack can be executed through CVE-2024-20421?
CVE-2024-20421 allows an unauthenticated attacker to perform a cross-site request forgery (CSRF) attack on affected devices.
Is authentication required to exploit CVE-2024-20421?
No, CVE-2024-20421 can be exploited without any authentication, making it more critical.

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