CVE-2020-27217

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In Eclipse Hono version 1.3.0 and 1.4.0 the AMQP protocol adapter does not verify the size of AMQP messages received from devices. In particular, a device may send messages that are bigger than the max-message-size that the protocol adapter has indicated during link establishment. While the AMQP 1.0 protocol explicitly disallows a peer to send such messages, a hand crafted AMQP 1.0 client could exploit this behavior in order to send a message of unlimited size to the adapter, eventually causing the adapter to fail with an out of memory exception.

En Eclipse Hono versiones 1.3.0 y 1.4.0, el adaptador de protocolo AMQP no verifica el tamaño de los mensajes AMQP recibidos desde dispositivos. En particular, un dispositivo puede enviar mensajes que son más grandes que el tamaño máximo de mensaje que el adaptador de protocolo ha indicado durante el establecimiento del enlace. Si bien el protocolo AMQP versión 1.0 explícitamente no permite a un peer enviar dichos mensajes, un cliente AMQP versión 1.0 diseñado podría explotar este comportamiento a fin de enviar un mensaje de tamaño ilimitado hacia el adaptador, lo que eventualmente causa a un adaptador un fallo con una excepción de falta de memoria

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-10-19 CVE Reserved
2020-11-13 CVE Published
2023-07-30 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-1284: Improper Validation of Specified Quantity in Input

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://bugs.eclipse.org/bugs/show_bug.cgi?id=567068	2020-12-01

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Eclipse Search vendor "Eclipse"		Hono Search vendor "Eclipse" for product "Hono"				1.3.0 Search vendor "Eclipse" for product "Hono" and version "1.3.0"		-		Affected
Eclipse Search vendor "Eclipse"		Hono Search vendor "Eclipse" for product "Hono"				1.4.0 Search vendor "Eclipse" for product "Hono" and version "1.4.0"		-		Affected