Incorrect privilege assignment in the app permission update API of the Bosch Smart Home Controller (SHC)
Key facts
- Attack vector
- Adjacent network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-266.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Bosch | Smart Home Controller | before 9.8.905 | 9.8.905 | Patch available | CNA |
- Smart Home Controller VendorBosch Affected before 9.8.905 Fixed in 9.8.905 Patch available CNA
Remediation
- Fix · CNA Smart Home Controller (Bosch) Fixed in 9.8.905
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Bosch Smart Home Controller 9.8.905
5 records Highest priority Priority LOW 5 LOW
Other records, highest priority first
- TI-2019-08918 Improper access control in the JSON-RPC interface of the Bosch Smart Home Controller (SHC)Priority LOW 37
- TI-2019-08917 Incorrect privilege assignment in the app pairing mechanism of the Bosch Smart Home Controller (SHC)Priority LOW 36
- TI-2019-08921 Improper access control in the JSON-RPC interface of the Bosch Smart Home Controller (SHC)Priority LOW 26
Timeline
- 2026-10-02 Threatist record created from CVE-2019-11893
- 2026-10-03 Alias added: GHSA-422w-959p-3whv
References
More Bosch Smart Home Controller Firmware vulnerabilities
- TI-2019-08918 Improper access control in the JSON-RPC interface of the Bosch Smart Home Controller (SHC) CVSS 3.1HIGH 8.0
- TI-2019-08917 Incorrect privilege assignment in the app pairing mechanism of the Bosch Smart Home Controller (SHC) CVSS 3.1HIGH 8.0
- TI-2019-08922 Incorrect pviilege assignment in the 3rd party pairing mechanism of the Bosch Smart Home Controller (SHC) CVSS 3.1HIGH 7.1
- TI-2019-08921 Improper access control in the JSON-RPC interface of the Bosch Smart Home Controller (SHC) CVSS 3.1MEDIUM 5.3
- TI-2019-08920 Improper access control in the backup mechanism of the Bosch Smart Home Controller (SHC) CVSS 3.1MEDIUM 5.7
Sources
- CVE-2019-11893 · CVE Program
- CVE-2019-11893 · NVD
- FIRST EPSS
- GHSA-422w-959p-3whv · GitHub Advisory Database · CC BY 4.0
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