CVE-2019-13269

Severity Score

8.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Edimax BR-6208AC V1 devices have Insufficient Compartmentalization between a host network and a guest network that are established by the same device. A DHCP Request is sent to the router with a certain Transaction ID field. Following the DHCP protocol, the router responds with an ACK or NAK message. Studying the NAK case revealed that the router erroneously sends the NAK to both Host and Guest networks with the same Transaction ID as found in the DHCP Request. This allows encoding of data to be sent cross-router into the 32-bit Transaction ID field.

Los dispositivos Br-6208AC V1 de Edimax tienen una compartimentación insuficiente entre una red host y una red de invitados establecida por el mismo dispositivo. Una petición DHCP se envía al router con un determinado campo del ID de transacción. Siguiendo el protocolo DHCP, el router responde con un mensaje ACK o NAK. El estudio del caso NAK reveló que el router envía erróneamente el NAK a las redes del host y del invitado con el mismo ID de transacción que se encuentra en la petición DHCP. Esto permite que la codificación de los datos se envíe entre enrutadores en el campo ID de transacción de 32 bits.

*Credits: N/A

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Adjacent

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-07-04 CVE Reserved
2019-08-27 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-20: Improper Input Validation

CAPEC

References (2)

URL	Tag	Source
https://www.usenix.org/system/files/woot19-paper_ovadia.pdf	Third Party Advisory

URL	Date	SRC
https://orenlab.sise.bgu.ac.il/publications/CrossRouter	2024-08-04

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
Edimax Search vendor "Edimax"	Br-6208ac V1 Firmware Search vendor "Edimax" for product "Br-6208ac V1 Firmware"	-	-	Affected	in	Edimax Search vendor "Edimax"	Br-6208ac V1 Search vendor "Edimax" for product "Br-6208ac V1"	-	-	Safe