CVE-2017-3199

Public Exploit
GraniteDS, version 3.1.1.GA, Action Message Format (AMF3) Java implementation is vulnerable to insecure deserialization

Description

The Java implementation of GraniteDS, version 3.1.1.GA, AMF3 deserializers derives class instances from java.io.Externalizable rather than the AMF3 specification's recommendation of flash.utils.IExternalizable. A remote attacker with the ability to spoof or control an RMI server connection may be able to send serialized Java objects that execute arbitrary code when deserialized.

Category

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 14.46% Top 10%
Third-Party Advisory cert.org Third-Party Advisory securityfocus.com Third-Party Advisory securityweek.com Third-Party Advisory blogspot.com
Affected: GraniteDS Framework
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/97382 vdb entry third party advisory
https://codewhitesec.blogspot.com/2017/04/amf.html third party advisory exploit
https://www.kb.cert.org/vuls/id/307983 third party advisory us government resource
http://www.securityweek.com/flaws-java-amf-libraries-allow-remote-code-execution third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-3199?
CVE-2017-3199 has been scored as a high severity vulnerability.
How to fix CVE-2017-3199?
To fix CVE-2017-3199, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-3199 being actively exploited in the wild?
It is possible that CVE-2017-3199 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~14% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-3199?
CVE-2017-3199 affects GraniteDS Framework.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.