Vulnerability Description
An issue was discovered on OnePlus 7 Pro devices before 10.0.3.GM21BA. The firmware was found to contain functionality that allows a privileged user (root) in the Rich Execution Environment (REE) to obtain bitmap images from the fingerprint sensor because of Leftover Debug Code. The issue is that the Trusted Application (TA) supports an extended number of commands beyond what is needed to implement a fingerprint authentication system compatible with Android. An attacker who is in the position to send commands to the TA (for example, the root user) is able to send a sequence of these commands that will result in the TA sending a raw fingerprint image to the REE. This means that the Trusted Execution Environment (TEE) no longer protects identifiable fingerprint data from the REE.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Oneplus | Oneplus 7 Pro Firmware | < 10.0.3.gm21ba |
| Oneplus | Oneplus 7 Pro | - |
References
- https://www.synopsys.com/blogs/software-security/cve-2020-7958/ExploitThird Party Advisory
- https://www.synopsys.com/blogs/software-security/cve-2020-7958/ExploitThird Party Advisory
FAQ
What is CVE-2020-7958?
CVE-2020-7958 is a vulnerability with a CVSS score of 6.0 (MEDIUM). An issue was discovered on OnePlus 7 Pro devices before 10.0.3.GM21BA. The firmware was found to contain functionality that allows a privileged user (root) in the Rich Execution Environment (REE) to o...
How severe is CVE-2020-7958?
CVE-2020-7958 has been rated MEDIUM with a CVSS base score of 6.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-7958?
Check the references section above for vendor advisories and patch information. Affected products include: Oneplus Oneplus 7 Pro Firmware, Oneplus Oneplus 7 Pro.