CVE-2020-24717

OpenZFS before 2.0.0-rc1, when used on FreeBSD, misinterprets group permissions as user permissions, as demonstrated by mode 0770 being equivalent to mode 0777.

CVSS v3 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

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

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/openzfs/zfs/commit/716b53d0a14c72bda16c0872565dd1909757e73f	Patch Third Party Advisory
https://github.com/openzfs/zfs/compare/zfs-0.8.4...zfs-2.0.0-rc1	Patch Third Party Advisory
https://jira.ixsystems.com/browse/NAS-107270	Exploit Issue Tracking Patch Third Party Advisory
https://reviews.freebsd.org/D26107	Issue Tracking Patch Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:openzfs:openzfs:*:*:*:*:*:*:*:*

cpe:2.3:o:freebsd:freebsd:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-08-27 19:15

Updated : 2024-02-28 17:47

NVD link : CVE-2020-24717

Mitre link : CVE-2020-24717

CVE.ORG link : CVE-2020-24717

JSON object : View

Products Affected

freebsd

freebsd

openzfs

openzfs

CWE

CWE-276

Incorrect Default Permissions

{"id": "CVE-2020-24717", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.2, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/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": 1.8}]}, "published": "2020-08-27T19:15:12.037", "references": [{"url": "https://github.com/openzfs/zfs/commit/716b53d0a14c72bda16c0872565dd1909757e73f", "tags": ["Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/openzfs/zfs/compare/zfs-0.8.4...zfs-2.0.0-rc1", "tags": ["Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://jira.ixsystems.com/browse/NAS-107270", "tags": ["Exploit", "Issue Tracking", "Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://reviews.freebsd.org/D26107", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-276"}]}], "descriptions": [{"lang": "en", "value": "OpenZFS before 2.0.0-rc1, when used on FreeBSD, misinterprets group permissions as user permissions, as demonstrated by mode 0770 being equivalent to mode 0777."}, {"lang": "es", "value": "OpenZFS versiones anteriores a 2.0.0-rc1, cuando es usado en FreeBSD, malinterpreta los permisos de grupo como permisos de usuario, como es demostrado por el modo 0770 que es equivalente al modo 0777"}], "lastModified": "2020-09-04T16:20:30.173", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openzfs:openzfs:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5C4D689C-899B-4558-B217-438B10E533EA", "versionEndIncluding": "0.8.4"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:freebsd:freebsd:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "3B2AEFCC-A2F6-45A6-A2EF-24F7906E44E2"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}