CVE-2017-3199

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

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.

Affected

GraniteDS · Framework

CVSS v3.1 NVD

8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS

6.04% chance of exploitation in the next 30 days, 93rd percentile

Published

2018-06-11

Updated

2024-08-05

Proof-of-concept exploits (1)

• https://codewhitesec.blogspot.com/2017/04/amf.html

Security advisories

• http://www.securityfocus.com/bid/97382
• http://www.securityweek.com/flaws-java-amf-libraries-allow-remote-code-execution
• https://www.kb.cert.org/vuls/id/307983
• advisories/GHSA-8m35-r25c-qr56

References

• CVE Record
• NVD entry