CVE-2017-3203

HIGH

Pivotal Spring-flex - Insecure Deserialization

Title source: rule

Description

The Java implementations of AMF3 deserializers in Pivotal/Spring Spring-flex derive 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.

References (4)

[Third Party Advisory] http://www.securityweek.com/flaws-java-amf-libraries-allow-remote-code-execution

[Exploit, Mitigation, Third Party Advisory] https://codewhitesec.blogspot.com/2017/04/amf.html

[Third Party Advisory, US Government Resource] https://www.kb.cert.org/vuls/id/307983

[Third Party Advisory, VDB Entry] https://www.securityfocus.com/bid/97376

Scores

CVSS v3 8.1

EPSS 0.1342

EPSS Percentile 94.1%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

CWE

CWE-502

Status published

Affected Products (2)

pivotal/spring-flex

org.springframework.flex/spring-flex Maven

Timeline

Published Jun 11, 2018

Tracked Since Feb 18, 2026