CVE-2019-4520 Security feature bypass in Security Directory Server

High 7.5 Published 2 Oct 2019 Updated 17 Sep 2024

Inadequate account lockout settings in IBM Security Directory Server allow remote attackers to brute force credentials and take over accounts.

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-2019-4520?

CVE-2019-4520 is a high-severity vulnerability in IBM Security Directory Server, published on 2 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

IBM Security Directory Server 6.4.0 uses an inadequate account lockout setting that could allow a remote attacker to brute force account credentials. IBM X-Force ID: 165178.

Weakness: CWE-307

Which versions are affected by CVE-2019-4520?

It affects 1 product.

Products include Ibm Security Directory Server.

How do I fix CVE-2019-4520?

No fix has been published for CVE-2019-4520 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-4520 being exploited?

There is no known exploitation of CVE-2019-4520 in the wild and no public exploit code.

Sources

Also known as GHSA-gq9m-8c7h-8jr8.