VDB-134485 · CVE-2019-11561 · GCVE-0-2019-11561

Chuango 433 MHz Burglar-Alarm OV2 Base Station access control

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.1	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Chuango 433 MHz Burglar-Alarm. Affected is an unknown function of the component OV2 Base Station. This manipulation causes access control. This vulnerability is registered as CVE-2019-11561. It is feasible to perform the attack on the physical device. No exploit is available.

Detailsinfo

A vulnerability was found in Chuango 433 MHz Burglar-Alarm (affected version unknown). It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component OV2 Base Station. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect availability. The summary by CVE is:

The Chuango 433 MHz burglar-alarm product line is vulnerable to a Denial of Service attack. When the condition is triggered, the OV2 base station is unable to process sensor states and effectively prevents the alarm from setting off, as demonstrated by Chuango branded products, and non-Chuango branded products such as the Eminent EM8617 OV2 Wifi Alarm System.

The bug was discovered 04/27/2019. The weakness was published 05/08/2019. This vulnerability is known as CVE-2019-11561 since 04/26/2019. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 11 days. During that time the estimated underground price was around $0-$5k.

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

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Productinfo

Vendor

Chuango

Name

433 MHz Burglar-Alarm

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.1
VulDB Meta Temp Score: 4.1

VulDB Base Score: 2.4
VulDB Temp Score: 2.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/26/2019 🔍
04/27/2019 +1 days 🔍
05/08/2019 +11 days 🔍
05/09/2019 +1 days 🔍
09/15/2023 +1590 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2019-11561 (🔍)
GCVE (CVE): GCVE-0-2019-11561
GCVE (VulDB): GCVE-100-134485

Entryinfo

Created: 05/09/2019 07:00
Updated: 09/15/2023 08:37
Changes: 05/09/2019 07:00 (52), 06/08/2020 09:54 (1), 09/15/2023 08:37 (3)
Complete: 🔍
Cache ID: 216::103