VDB-135685 · CVE-2019-11893 · GCVE-0-2019-11893

Bosch Smart Home Controller up to 9.8 Update API permission

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.
6.0	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in Bosch Smart Home Controller up to 9.8. Affected by this vulnerability is an unknown functionality of the component Update API. This manipulation causes permission. This vulnerability is registered as CVE-2019-11893. The attack requires access to the local network. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Bosch Smart Home Controller up to 9.8. Affected by this vulnerability is an unknown code of the component Update API. The manipulation with an unknown input leads to a permission vulnerability. The CWE definition for the vulnerability is CWE-275. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A potential incorrect privilege assignment vulnerability exists in the app permission update API of the Bosch Smart Home Controller (SHC) before 9.8.905 that may result in a restricted app obtaining default app permissions. In order to exploit the vulnerability, the adversary needs to have successfully paired an app with restricted permissions, which required user interaction.

The weakness was published 05/29/2019 (Website). The advisory is shared at psirt.bosch.com. This vulnerability is known as CVE-2019-11893 since 05/13/2019. The attack needs to be initiated within the local network. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1222 for this issue.

Upgrading to version 9.8.905 eliminates this vulnerability.

Similar entries are available at VDB-135683, VDB-135684, VDB-135686 and VDB-135687. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Bosch

Name

Smart Home Controller

Version

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔍

CNA Base Score: 5.5
CNA Vector (Robert Bosch GmbH): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Permission
CWE: CWE-275 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Smart Home Controller 9.8.905

Timelineinfo

05/13/2019 🔍
05/29/2019 +16 days 🔍
05/30/2019 +1 days 🔍
09/25/2023 +1579 days 🔍

Sourcesinfo

Advisory: psirt.bosch.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-11893 (🔍)
GCVE (CVE): GCVE-0-2019-11893
GCVE (VulDB): GCVE-100-135685
See also: 🔍

Entryinfo

Created: 05/30/2019 08:58
Updated: 09/25/2023 07:46
Changes: 05/30/2019 08:58 (57), 06/17/2020 06:54 (1), 09/25/2023 07:46 (13)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.