CVE-2019-14239

On NXP Kinetis KV1x, Kinetis KV3x, and Kinetis K8x devices, Flash Access Controls (FAC) (a software IP protection method for execute-only access) can be defeated by leveraging a load instruction inside the execute-only region to expose the protected code into a CPU register.

CVSS v3.0 6.6 MEDIUM
CVSS v2.0 4.6 MEDIUM

6.6^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 0.7 / Impact : 5.9

Attack Vector PHYSICAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.usenix.org/system/files/woot19-paper_schink.pdf	Exploit Mitigation Third Party Advisory
https://www.usenix.org/conference/woot19/presentation/schink	Exploit Third Party Advisory

Advertisement

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:nxp:kinetis_kv1x_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:nxp:kinetis_kv1x:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:nxp:kinetis_kv3x_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:nxp:kinetis_kv3x:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:nxp:kinetis_k8x_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:nxp:kinetis_k8x:-:*:*:*:*:*:*:*

Information

Published : 2019-09-24 12:15

Updated : 2019-09-25 06:45

NVD link : CVE-2019-14239

Mitre link : CVE-2019-14239

JSON object : View

CWE

CWE-287

Improper Authentication

Advertisement

Products Affected

nxp

kinetis_kv3x_firmware
kinetis_kv3x
kinetis_kv1x
kinetis_k8x_firmware
kinetis_k8x
kinetis_kv1x_firmware

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://www.usenix.org/system/files/woot19-paper_schink.pdf", "name": "https://www.usenix.org/system/files/woot19-paper_schink.pdf", "tags": ["Exploit", "Mitigation", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://www.usenix.org/conference/woot19/presentation/schink", "name": "https://www.usenix.org/conference/woot19/presentation/schink", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "On NXP Kinetis KV1x, Kinetis KV3x, and Kinetis K8x devices, Flash Access Controls (FAC) (a software IP protection method for execute-only access) can be defeated by leveraging a load instruction inside the execute-only region to expose the protected code into a CPU register."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-287"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2019-14239", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 4.6, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.6, "attackVector": "PHYSICAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 0.7}}, "publishedDate": "2019-09-24T19:15Z", "configurations": {"nodes": [{"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:nxp:kinetis_kv1x_firmware:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:h:nxp:kinetis_kv1x:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}, {"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:nxp:kinetis_kv3x_firmware:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:h:nxp:kinetis_kv3x:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}, {"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:nxp:kinetis_k8x_firmware:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:h:nxp:kinetis_k8x:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2019-09-25T13:45Z"}