CVE-2018-3762 - Improper Preservation of Permissions

Severity

40%

Complexity

80%

Confidentiality

48%

Nextcloud Server before 12.0.8 and 13.0.3 suffers from improper checks of dropped permissions for incoming shares allowing a user to still request previews for files it should not have access to.

Nextcloud Server before 12.0.8 and 13.0.3 suffers from improper checks of dropped permissions for incoming shares allowing a user to still request previews for files it should not have access to.

CVSS 3.0 Base Score 4.3. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).

CVSS 2.0 Base Score 4. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:S/C:P/I:N/A:N).

Overview

First reported 6 years ago

2018-07-05 16:29:00

Last updated 5 years ago

2019-10-09 23:40:00

Affected Software

Nextcloud Server 13.0.3

13.0.3

References

https://hackerone.com/reports/358339

Third Party Advisory

https://nextcloud.com/security/advisory/?id=nc-sa-2018-002

Vendor Advisory

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