CVE-2017-3199 Information

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.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/97382 http://www.securityweek.com/flaws-java-amf-libraries-allow-remote-code-execution https://codewhitesec.blogspot.com/2017/04/amf.html https://www.kb.cert.org/vuls/id/307983

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.1