What is the CVSS score of CVE-2020-7958?

CVE-2020-7958 has a CVSS 3.1 base score of 6.0 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N. EPSS exploitation probability: 0.6%.

Is there a public PoC exploit available for CVE-2020-7958?

Yes, a public proof-of-concept exploit is available for CVE-2020-7958. Prioritise patching immediately. EPSS: 0.6%.

Oneplus 7 Pro Firmware CVE-2020-7958

MEDIUM

2020-04-14 cve@mitre.org

Google Information Disclosure Oneplus 7 Pro Firmware

6.0

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.0 MEDIUM

AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Apr 14, 2020 - 16:15 nvd

MEDIUM 6.0

DescriptionNVD

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.

AnalysisAI

An issue was discovered on OnePlus 7 Pro devices before 10.0.3.GM21BA. Rated medium severity (CVSS 6.0), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.