// For flags

CVE-2019-13263

 

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

D-link DIR-825AC G1 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 D-link DIR-825AC G1 poseen una Compartimentación Insuficiente entre una red host y una red invitada que es establecida por el mismo dispositivo. Una Petición DHCP se envía al router con un determinado campo Transaction ID. Siguiendo el protocolo DHCP, el enrutador responde con un mensaje ACK o NAK. Estudiando el caso de NAK reveló que el router envía erróneamente el NAK tanto a las redes Host como a las Invitadas con el mismo Transaction ID que se encuentra en la petición DHCP. Esto permite que la codificación de datos se envíe por medio del router hacia el campo Transaction ID de 32 bits.

*Credits: N/A
CVSS Scores
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-669: Incorrect Resource Transfer Between Spheres
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Dlink
Search vendor "Dlink"
 Dir-825\/ac G1 Firmware
Search vendor "Dlink" for product "Dir-825\/ac G1 Firmware"
--
Affected
in Dlink
Search vendor "Dlink"
 Dir-825\/ac G1
Search vendor "Dlink" for product "Dir-825\/ac G1"
--
Safe