CVE-2020-7958

{"id": "CVE-2020-7958", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 2.1, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.0, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 4.0, "exploitabilityScore": 1.5}]}, "published": "2020-04-14T16:15:13.297", "references": [{"url": "https://www.synopsys.com/blogs/software-security/cve-2020-7958/", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Se detect\u00f3 un problema en los dispositivos OnePlus 7 Pro versiones anteriores a 10.0.3.GM21BA. Se encontr\u00f3 que el firmware conten\u00eda una funcionalidad que permite a un usuario privilegiado (root) en el Rich Execution Environment (REE) obtener im\u00e1genes de mapa de bits del sensor de huellas digitales debido a un Leftover Debug Code. El problema es que la Trusted Application (TA) admite un n\u00famero extendido de comandos m\u00e1s all\u00e1 de lo que es necesario para implementar un sistema de autenticaci\u00f3n de huellas digitales compatible con Android. Un atacante que est\u00e1 en la posici\u00f3n para enviar comandos a la TA (por ejemplo, el usuario root) puede enviar una secuencia de estos comandos que resultar\u00e1 en que la TA env\u00ede una imagen de huella digital sin procesar al REE. Esto significa que el Trusted Execution Environment (TEE) ya no protege los datos de huellas digitales identificables del REE."}], "lastModified": "2021-07-21T11:39:23.747", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:oneplus:oneplus_7_pro_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F9546C39-5F7C-4621-A53A-E9DC8DFD92EA", "versionEndExcluding": "10.0.3.gm21ba"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:oneplus:oneplus_7_pro:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "D3C76F01-D272-48E9-BCFF-6C0816A0E4E5"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}