CVE-2017-3203

Pivotal/Spring Spring-flex's Action Message Format (AMF3) Java implementation is vulnerable to insecure deserialization

Severity Score

8.1

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Las implementaciones de Java de los deserializadores AMF3 en Pivotal/Spring Spring-flex derivan las instancias de clase desde java.io.Externalizable en lugar de la recomendación de especificación de AMF3 de flash.utils.IExternalizable. Un atacante remoto con la habilidad de suplantar o controlar una conexión de servidor RMI podría ser capaz de enviar objetos Java serializados que ejecutan código arbitrario al deserializarse.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-12-05 CVE Reserved
2018-06-11 CVE Published
2024-04-20 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-502: Deserialization of Untrusted Data

CAPEC

References (4)

URL	Tag	Source
http://www.securityweek.com/flaws-java-amf-libraries-allow-remote-code-execution	Third Party Advisory
https://www.kb.cert.org/vuls/id/307983	Third Party Advisory
https://www.securityfocus.com/bid/97376	Third Party Advisory

URL	Date	SRC
https://codewhitesec.blogspot.com/2017/04/amf.html	2024-08-05

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Pivotal Search vendor "Pivotal"		Spring-flex Search vendor "Pivotal" for product "Spring-flex"				*		-		Affected