CVE-2019-11895 : What You Need to Know
Learn about CVE-2019-11895, a vulnerability in Bosch Smart Home Controller (SHC) before 9.8.905, leading to a denial of service risk due to improper access control. Find mitigation steps here.
A potential vulnerability exists in the JSON-RPC interface of the Bosch Smart Home Controller (SHC) before version 9.8.905, leading to a denial of service risk. The vulnerability is related to improper access control.
Understanding CVE-2019-11895
This CVE involves a security flaw in the Bosch Smart Home Controller (SHC) that could allow an attacker to disrupt the service and connected devices.
What is CVE-2019-11895?
The vulnerability in the JSON-RPC interface of the Bosch Smart Home Controller (SHC) before version 9.8.905 could result in a successful denial of service attack. Exploiting this flaw requires the adversary to have successfully paired an app or service with user interaction.
The Impact of CVE-2019-11895
- CVSS Base Score: 5.3 (Medium Severity)
- Attack Vector: Adjacent Network
- Availability Impact: High
- This vulnerability could lead to a denial of service for the SHC and its connected sensors and actuators.
Technical Details of CVE-2019-11895
This section provides more in-depth technical details about the vulnerability.
Vulnerability Description
The vulnerability is classified as CWE-284 - Improper Access Control, indicating a flaw in controlling access to resources.
Affected Systems and Versions
- Affected Product: Smart Home Controller
- Vendor: Bosch
- Vulnerable Versions: Before 9.8.905
Exploitation Mechanism
- The vulnerability is related to improper access control in the JSON-RPC interface of the SHC.
- Successful exploitation requires the adversary to have paired an app or service with user interaction.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.
Immediate Steps to Take
- Update the Bosch Smart Home Controller to version 9.8.905 or later to mitigate the vulnerability.
- Monitor for any unusual activity on the SHC and its connected devices.
Long-Term Security Practices
- Regularly update and patch all software and firmware to prevent security vulnerabilities.
- Implement strong access control measures to restrict unauthorized access to the SHC.
Patching and Updates
- Ensure that all security patches and updates provided by Bosch are promptly applied to the Smart Home Controller to address known vulnerabilities.