CVE-2017-3201
The Java implementation of AMF3 deserializers used in Flamingo amf-serializer by Exadel, version 2.2.0 derives class instances from java.io.Externalizable rather than the AMF3 specification's recommendation of flash.utils.IExternalizable.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The Java implementation of AMF3 deserializers used in Flamingo amf-serializer by Exadel, version 2.2.0 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 3.0
- 8.1 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 5.36% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- exadel/flamingo amf-serializer
- Source
- cret@cert.org
References
- http://www.securityfocus.com/bid/97380Third Party Advisory, VDB Entry
- http://www.securityweek.com/flaws-java-amf-libraries-allow-remote-code-executionThird Party Advisory
- https://codewhitesec.blogspot.com/2017/04/amf.htmlExploit, Third Party Advisory
- https://www.kb.cert.org/vuls/id/307983Third Party Advisory
- http://www.securityfocus.com/bid/97380Third Party Advisory, VDB Entry
- http://www.securityweek.com/flaws-java-amf-libraries-allow-remote-code-executionThird Party Advisory
- https://codewhitesec.blogspot.com/2017/04/amf.htmlExploit, Third Party Advisory
- https://www.kb.cert.org/vuls/id/307983Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.