WebORB for Java by Midnight Coders, version 5.1.1.0, Action Message Format (AMF3) Java implementation is vulnerable to insecure deserialization
CVE-2017-3207

9.8CRITICAL

Key Information:

Vendor

Midnight Coders

Status
Weborb For Java
Vendor
CVE Published:
11 June 2018

What is CVE-2017-3207?

The Java implementations of AMF3 deserializers in WebORB for Java by Midnight Coders, version 5.1.1.0, 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 Version(s)

WebORB for Java 5.1.1.0

References

https://codewhitesec.blogspot.com/2017/04/amf.html
x_refsource_MISC
https://www.kb.cert.org/vuls/id/307983
third-party-advisoryx_refsource_CERT-VN
http://www.securityweek.com/flaws-java-amf-libraries-allo...
x_refsource_MISC

EPSS Score

7% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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