Local AT command execution via broadcast Intent
Published Apr 22, 2024 · Updated Aug 2, 2024
AT command injection in Nokia C200 builds 02US_1_040 and 02US_1_080 allows local users to execute arbitrary AT commands as the radio user. The exported com.tracfone.tfstatus/.TFStatus receiver forwards an externally controlled Intent string to TFStatusActivity, which executes it as AT-command input without adequate access control or filtering. Exploitation requires installing and running a third-party app but requires no app permissions or further user interaction, exposing modem functions available to the radio context.
Summary
What happened
AT command injection in Nokia C200 builds 02US_1_040 and 02US_1_080 allows local users to execute arbitrary AT commands as the radio user. The exported com.tracfone.tfstatus/.TFStatus receiver forwards an externally controlled Intent string to TFStatusActivity, which executes it as AT-command input without adequate access control or filtering. Exploitation requires installing and running a third-party app but requires no app permissions or further user interaction, exposing modem functions available to the radio context.
The record
- CVE
- CVE-2023-38293
- Published
- Apr 22, 2024
- Updated
- Aug 2, 2024
- Vendor
- Nokia
- Product
- Nokia C200
- Classifications
- CWE-20
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 22, 2024CVE publishedPublication date reported by the CVE source.
- Aug 2, 2024Record updatedLatest update available in the CVE record.
Exploitability
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