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Sources : US Cert, Cert EU, Cert FR, Cnil, VulDB.

vendredi 10 mai 2019

McDonalds Self-Service Machine Burger Hamburglar privilege escalation

A vulnerability was found in McDonalds Self-Service Machine (affected version unknown). It has been declared as critical. Affected by this vulnerability is a code block of the component Burger Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability (Hamburglar). The CWE definition for the vulnerability is CWE-269. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 04/08/2019 by Hamburglar Bourne as Free Food from Maccas as confirmed video (Youtube). The advisory is shared at youtu.be. The public release happened without involvement of McDonalds. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/10/2019). Due to its background and reception, this vulnerability has a historic impact.

A public exploit has been developed by Hamburglar Bourne and been published immediately after the advisory. It is declared as proof-of-concept. It is possible to download the exploit at youtu.be. We expect the 0-day to have been worth approximately $5k-$25k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Additional details are provided at mashable.com.

Product

Vendor

Name

CPE 2.3

CPE 2.2

Video

Youtube: https://youtu.be/1oFpTNsPu_w

CVSSv3

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.9
VulDB Temp Score: 5.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploiting

Class: Privilege escalation / Hamburglar (CWE-269)
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Author: Hamburglar Bourne
Download: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

Threat Intelligence

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍

Countermeasures

Recommended: no mitigation known
0-Day Time: 🔒
Exploit Delay Time: 🔍

Timeline

04/08/2019 Advisory disclosed
04/08/2019 Exploit disclosed
05/10/2019 VulDB entry created
05/10/2019 VulDB last update

Sources

Advisory: Free Food from Maccas
Researcher: Hamburglar Bourne
Status: Confirmed
Misc.: 🔒

Entry

Created: 05/10/2019 11:39 AM
Complete: 🔍

Lien vers l'article source

Auteur: VulDB

Catégories: VulDBNombre de vues: 157

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Événements SSI

BLOCKCHAIN

Conférence et exposition sur les applications d'entreprise de la blockchain à Paris, cité universitaire internationale, les 13 et 14 novembre 2019. Organisés par Corp Agency.

TRUSTECH

Cet événement international dédié aux paiements, à l'identification et à la sécurité est organisé à Cannes (palais des festivals) du 26 au 28 novembre 2019. Organisé par Comexposium.

FIC

Ayant pour thème cette année "Replacer l'humain au coeur de la cybersécurité", le Forum International de la Cybersécurité occupe les 28, 29 et 30 janvier 2020 le Grand Palais de Lille. Organisé par la Région Hauts-de-France et Euratechnologies, la Gendarmerie Nationale et CEIS.

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