CVE-2024-20438: nexus dashboard Auth Bypass — Fix

Description

A vulnerability in the REST API endpoints of Cisco NDFC could allow an authenticated, low-privileged, remote attacker to read or write files on an affected device. This vulnerability exists because of missing authorization controls on some REST API endpoints. An attacker could exploit this vulnerability by sending crafted API requests to an affected endpoint. A successful exploit could allow the attacker to perform limited network-admin functions such as reading device configuration information, uploading files, and modifying uploaded files. Note: This vulnerability only affects a subset of REST API endpoints and does not affect the web-based management interface.

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CVSS v3.1 Score

6.3

MEDIUM

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

Weakness Type (CWE)

CWE-693 CWE-693

CWE-862 Missing Authorization

Affected Products

Vendor	Product	Versions
cisco	nexus_dashboard	< 3.2\(1e\)
cisco	nexus_dashboard_fabric_controller	12.0.0 — 12.2.2

References

Advisories & Patches

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ndhs-uaapi-Jh4V6zpN

Frequently Asked Questions

What is CVE-2024-20438? +

A vulnerability in the REST API endpoints of Cisco NDFC could allow an authenticated, low-privileged, remote attacker to read or write files on an affected device. This vulnerability exists because of missing authorization controls on some REST API endpoints. An attacker could exploit this vulnerability by sending crafted API requests to an affected endpoint. A successful exploit could allow the attacker to perform limited network-admin functions such as reading device configuration information, uploading files, and modifying uploaded files. Note: This vulnerability only affects a subset of REST API endpoints and does not affect the web-based management interface. It has a CVSS v3.1 base score of 6.3 (MEDIUM).

How severe is CVE-2024-20438? +

CVE-2024-20438 has a CVSS v3.1 score of 6.3 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-2024-20438? +

CVE-2024-20438 affects products from cisco, specifically: nexus_dashboard, nexus_dashboard_fabric_controller. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-20438? +

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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CVE-2024-20438