Vulnerability Monitor

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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.

Published

2020-08-27T19:15:12.037

Last Modified

2024-11-21T05:15:57.530

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

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

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

10.0

Weaknesses

Type: Primary
CWE-276

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	openzfs	openzfs	≤ 0.8.4	Yes
Operating System	freebsd	freebsd	-	No

References

https://github.com/openzfs/zfs/commit/716b53d0a14c72bda16c0872565dd1909757e73f Patch, Third Party Advisory ([email protected])
https://github.com/openzfs/zfs/compare/zfs-0.8.4...zfs-2.0.0-rc1 Patch, Third Party Advisory ([email protected])
https://jira.ixsystems.com/browse/NAS-107270 Exploit, Issue Tracking, Patch, Third Party Advisory ([email protected])
https://reviews.freebsd.org/D26107 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://github.com/openzfs/zfs/commit/716b53d0a14c72bda16c0872565dd1909757e73f Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/openzfs/zfs/compare/zfs-0.8.4...zfs-2.0.0-rc1 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://jira.ixsystems.com/browse/NAS-107270 Exploit, Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://reviews.freebsd.org/D26107 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)