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.
Remediation
References
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
https://www.securityfocus.com/bid/97376
Related Vulnerabilities
CVE-2018-10469 Vulnerability in maven package org.b3log:symphony
CVE-2020-36183 Vulnerability in maven package com.fasterxml.jackson.core:jackson-databind
CVE-2023-34616 Vulnerability in maven package com.progsbase.libraries:json
CVE-2022-45391 Vulnerability in maven package io.jenkins.plugins:cavisson-ns-nd-integration
CVE-2020-7622 Vulnerability in maven package io.jooby:jooby-netty