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

Medium 5.4 Published 16 Oct 2024 Updated 31 Oct 2024

Authenticated low-privilege attackers can escalate to Admin privileges and execute commands via the web interface due to incorrect authorization checks.

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-2024-20420?

CVE-2024-20420 is a medium-severity vulnerability in Cisco Analog Telephone Adaptor (ATA) Software, published on 16 Oct 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

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.

Weakness: CWE-863, CWE-250

Which versions are affected by CVE-2024-20420?

It affects 2 products.

Products include Cisco Ata 191 Firmware, Cisco Ata 192 Firmware.

How do I fix CVE-2024-20420?

No fix has been published for CVE-2024-20420 yet. Limit exposure of the affected software until one is available.

Is CVE-2024-20420 being exploited?

There is no known exploitation of CVE-2024-20420 in the wild and no public exploit code.

Sources

Also known as GHSA-w5cm-m7c3-4jj4.