CVE-2019-4539 XML external entity in Security Directory Server

High 7.1 Published Updated

Attackers can exploit improper XML neutralization in IBM Security Directory Server to modify XML syntax, content, or commands.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-4539?

CVE-2019-4539 is a high-severity vulnerability in IBM Security Directory Server, published on 2 Oct 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM Security Directory Server 6.4.0 does not properly neutralize special elements that are used in XML, allowing attackers to modify the syntax, content, or commands of the XML before it is processed by an end system. IBM X-Force ID: 165812.

Weakness: CWE-91

Which versions are affected by CVE-2019-4539?

It affects 1 product.

Products include Ibm Security Directory Server.

How do I fix CVE-2019-4539?

No fix has been published for CVE-2019-4539 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-4539 being exploited?

There is no known exploitation of CVE-2019-4539 in the wild and no public exploit code.

Sources

Also known as GHSA-vpj2-4h83-h98j.

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