CVE-2017-3206 XML external entity in Flamingo amf-serializer

Critical 9.8 Published Updated

An attacker can exploit XML external entity references in AMF3 messages to read sensitive data or cause denial of service.

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-2017-3206?

CVE-2017-3206 is a critical vulnerability in Exadel Flamingo amf-serializer, published on 11 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Java implementation of AMF3 deserializers used by Flamingo amf-serializer by Exadel, version 2.2.0, allows external entity references (XXEs) from XML documents embedded within AMF3 messages. If the XML parsing is handled incorrectly it could potentially expose sensitive data on the server, denial of service, or server side request forgery.

Weakness: CWE-611

Which versions are affected by CVE-2017-3206?

It affects 1 product.

Products include Exadel Flamingo.

How do I fix CVE-2017-3206?

No fix has been published for CVE-2017-3206 yet. Limit exposure of the affected software until one is available.

Is CVE-2017-3206 being exploited?

There is no known exploitation of CVE-2017-3206 in the wild and no public exploit code.

Sources

Also known as GHSA-685x-q7j3-8c52.

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