CVE-2021-22877 — Improper Access Control in Server

CWE-284 — Improper Access ControlCWE-862 — Missing AuthorizationCWE-269 — Improper Privilege Management3 documents3 sources
Severity
6.5MEDIUMNVD
EPSS
0.3%
top 48.63%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Nextcloud ServerFedoraproject Fedora
Timeline
PublishedMar 3
Latest updateMay 24

Description

A missing user check in Nextcloud prior to 20.0.6 inadvertently populates a user's own credentials for other users external storage configuration when not already configured yet.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:NExploitability: 1.2 | Impact: 5.2

Affected Packages2 packages

▶CVEListV5nextcloud/nextcloud_serverFixed in 20.0.6

Also affects: Fedora 34

Patches

Patch: github.com ↗Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-v65r-wc6r-r9x8: A missing user check in Nextcloud prior to 20↗2022-05-24
▶
CVEList
CVE-2021-22877: A missing user check in Nextcloud prior to 20↗2021-03-03
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CVE-2021-22877 — Improper Access Control in Server | cvebase