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CVE-2017-3203

Date: June 11, 2018

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.

Language: Java

Severity Score

Related Resources (6)

https://www.kb.cert.org/vuls/id/307983
https://www.securityfocus.com/bid/97376
https://codewhitesec.blogspot.com/2017/04/amf.html
http://www.securityweek.com/flaws-java-amf-libraries-allow-remote-code-execution
https://nvd.nist.gov/vuln/detail/CVE-2017-3203
https://www.mend.io/vulnerability-database/CVE-2017-3203

Severity Score

Weakness Type (CWE)

Deserialization of Untrusted Data

CWE-502

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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