CVE-2021-25143 Denial of service in Aruba Instant Access Points

High 7.5 Published 29 Mar 2021 Updated 3 Aug 2024

Remote attackers can cause a denial of service on Aruba Instant Access Points, requiring administrators to apply vendor patches.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-25143?

CVE-2021-25143 is a high-severity denial of service vulnerability in Siemens Scalance W1750d Firmware, published on 29 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A remote denial of service (dos) vulnerability was discovered in some Aruba Instant Access Point (IAP) products in version(s): Aruba Instant 8.3.x: 8.3.0.12 and below; Aruba Instant 8.5.x: 8.5.0.9 and below; Aruba Instant 8.6.x: 8.6.0.4 and below. Aruba has released patches for Aruba Instant that address this security vulnerability.

Which versions are affected by CVE-2021-25143?

It affects 2 products.

Products include Arubanetworks Instant, Siemens Scalance W1750d Firmware.

How do I fix CVE-2021-25143?

No fix has been published for CVE-2021-25143 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-25143 being exploited?

There is no known exploitation of CVE-2021-25143 in the wild and no public exploit code.

All Siemens Scalance W1750d Firmware vulnerabilities

Sources

Also known as GHSA-whw2-3966-q7jh.