What is the severity of CVE-2024-20420?

CVE-2024-20420 is rated as a medium severity vulnerability due to its potential for authenticated, remote exploitation.

Which devices are affected by CVE-2024-20420?

CVE-2024-20420 affects the Cisco ATA 191 and Cisco ATA 192 series devices running specific vulnerable firmware versions.

Can CVE-2024-20420 be exploited remotely?

Yes, CVE-2024-20420 can be exploited remotely by an authenticated attacker with low privileges.

What type of attack can CVE-2024-20420 facilitate?

CVE-2024-20420 could allow an attacker to execute commands with Admin privileges due to improper authorization controls.

Vulnerability/
CVE-2024-20420

high

8.8

CWE

250 863

16/10/2024

31/10/2024

CVE-2024-20420: Cisco ATA 190 Series Analog Telephone Adapter Firmware Privilege Escalation Vulnerability

Q: How do I fix CVE-2024-20420?

To mitigate CVE-2024-20420, users should upgrade their Cisco ATA 190 Series Analog Telephone Adapter firmware to a version that addresses the 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 authenticated, remote attacker with low privileges to run commands as an Admin user. This vulnerability is due to incorrect authorization verification by the HTTP server. An attacker could exploit this vulnerability by sending a malicious request to the web-based management interface. A successful exploit could allow the attacker to run commands as the Admin 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-2024-20420?
CVE-2024-20420 is rated as a medium severity vulnerability due to its potential for authenticated, remote exploitation.
How do I fix CVE-2024-20420?
To mitigate CVE-2024-20420, users should upgrade their Cisco ATA 190 Series Analog Telephone Adapter firmware to a version that addresses the vulnerability.
Which devices are affected by CVE-2024-20420?
CVE-2024-20420 affects the Cisco ATA 191 and Cisco ATA 192 series devices running specific vulnerable firmware versions.
Can CVE-2024-20420 be exploited remotely?
Yes, CVE-2024-20420 can be exploited remotely by an authenticated attacker with low privileges.
What type of attack can CVE-2024-20420 facilitate?
CVE-2024-20420 could allow an attacker to execute commands with Admin privileges due to improper authorization controls.

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