CVE-2023-50927

Insufficient boundary checks for DIO and DAO messages in RPL-Lite in Contiki-NG

Severity Score

8.6

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An attacker can trigger out-of-bounds reads in the RPL-Lite implementation of the RPL protocol in the Contiki-NG operating system. This vulnerability is caused by insufficient control of the lengths for DIO and DAO messages, in particular when they contain RPL sub-option headers. The problem has been patched in Contiki-NG 4.9. Users are advised to upgrade. Users unable to upgrade should manually apply the code changes in PR #2484.

Contiki-NG es un sistema operativo multiplataforma de código abierto para dispositivos IoT de próxima generación. Un atacante puede activar lecturas fuera de los límites en la implementación RPL-Lite del protocolo RPL en el sistema operativo Contiki-NG. Esta vulnerabilidad se debe a un control insuficiente de la longitud de los mensajes DIO y DAO, en particular cuando contienen encabezados de subopciones RPL. El problema ha sido solucionado en Contiki-NG 4.9. Se recomienda a los usuarios que actualicen. Los usuarios que no puedan actualizar deben aplicar manualmente los cambios de código en PR #2484.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-12-15 CVE Reserved
2024-02-14 CVE Published
2024-08-02 CVE Updated
2025-04-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (2)

URL	Tag	Source
https://github.com/contiki-ng/contiki-ng/pull/2484	X_refsource_misc
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-9423-rgj4-wjfw	X_refsource_confirm

URL	Date	SRC

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
Contiki-ng Search vendor "Contiki-ng"		Contiki-ng Search vendor "Contiki-ng" for product "Contiki-ng"				< 4.9 Search vendor "Contiki-ng" for product "Contiki-ng" and version " < 4.9"		en		Affected