CVE-2024-20420: ata 191 Auth Bypass — Fix

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.

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CVSS v3.1 Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Weakness Type (CWE)

CWE-250 CWE-250

CWE-863 Incorrect Authorization

Affected Products

Vendor	Product	Versions
cisco	ata_191_firmware	< 12.0.2
cisco	ata_191	All
cisco	ata_191_firmware	< 11.2.5
cisco	ata_191	All
cisco	ata_192_firmware	< 11.2.5
cisco	ata_192	All

References

Advisories & Patches

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

Frequently Asked Questions

What is CVE-2024-20420? +

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. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2024-20420? +

CVE-2024-20420 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-20420? +

CVE-2024-20420 affects products from cisco, specifically: ata_191, ata_191_firmware, ata_192, ata_192_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-20420? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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