High severity8.1NVD Advisory· Published Jun 11, 2018· Updated Jun 17, 2026
CVE-2017-3203
CVE-2017-3203
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.springframework.flex:spring-flexMaven | <= 1.5.2.RELEASE | — |
Affected products
2- Range: 0
Patches
Vulnerability mechanics
References
6- codewhitesec.blogspot.com/2017/04/amf.htmlnvdExploitMitigationThird Party AdvisoryWEB
- www.securityweek.com/flaws-java-amf-libraries-allow-remote-code-executionnvdThird Party AdvisoryWEB
- github.com/advisories/GHSA-8v4h-j42h-wfhcghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2017-3203ghsaADVISORY
- www.kb.cert.org/vuls/id/307983nvdThird Party AdvisoryUS Government ResourceWEB
- www.securityfocus.com/bid/97376nvdThird Party AdvisoryVDB Entry
News mentions
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