CVE-2019-6524 Auth bypass in Moxa IKS, EDS

Critical 9.8 Published 5 Mar 2019 Updated 16 Sep 2024

Attackers can brute-force passwords due to missing lockout mechanisms, potentially gaining unauthorized access to Moxa industrial network devices.

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-2019-6524?

CVE-2019-6524 is a critical authentication bypass vulnerability in ICS-CERT Moxa IKS, EDS, published on 5 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Moxa IKS and EDS do not implement sufficient measures to prevent multiple failed authentication attempts, which may allow an attacker to discover passwords via brute force attack.

Weakness: CWE-307

Which versions are affected by CVE-2019-6524?

It affects 4 products.

Products include Moxa Eds-405a Firmware, Moxa Eds-408a Firmware, Moxa Eds-510a Firmware, Moxa Iks-G6824a Firmware.

How do I fix CVE-2019-6524?

No fix has been published for CVE-2019-6524 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2019-6524 being exploited?

There is no known exploitation of CVE-2019-6524 in the wild and no public exploit code.

Sources

Also known as GHSA-xm5x-38fw-r6fq.