CVE-2023-28643

CWE-706 — Use of Incorrectly-Resolved Name2 documents2 sources
Severity
8.8HIGH
EPSS
0.7%
top 28.85%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Nextcloud Security-advisoriesNextcloud Nextcloud Server
Timeline
PublishedMar 30

Description

Nextcloud server is an open source home cloud implementation. In affected versions when a recipient receives 2 shares with the same name, while a memory cache is configured, the second share will replace the first one instead of being renamed to `{name} (2)`. It is recommended that the Nextcloud Server is upgraded to 25.0.3 or 24.0.9. Users unable to upgrade should avoid sharing 2 folders with the same name to the same user.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:LExploitability: 2.1 | Impact: 3.4

Affected Packages2 packages

▶NVDnextcloud/nextcloud_server24.0.0 — 24.0.9+1
▶CVEListV5nextcloud/security-advisories< 24.0.9+1

Patches

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

🔴Vulnerability Details

1
CVEList
Potential share collision for recipients when caching is enabled in nextcloud server↗2023-03-30
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CVE-2023-28643 (HIGH CVSS 8.8) | Nextcloud server is an open source | cvebase.io