CVE-2017-3199
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.12%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 6.12% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- graniteds/graniteds
- Source
- cret@cert.org
References
- http://www.securityfocus.com/bid/97382Third 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, US Government Resource
- http://www.securityfocus.com/bid/97382Third 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, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.