Medium severity · published Jul 12, 2021
CVE-2021-32725
Nextcloud Server is a Nextcloud package that handles data storage
5.3
CVSS
1.2%
EPSS
No
On KEV
Description
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, default share permissions were not being respected for federated reshares of files and folders. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nextcloud Server · Nextcloud
before 19.0.13; 20.0.0 before 20.0.11; 21.0.0 before 21.0.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-32725
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-32725
Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6f6v-h9x9-jj4v
Patch
https://github.com/nextcloud/server/pull/26946
Permissions Required
https://hackerone.com/reports/1178320
Third Party Advisory
https://security.gentoo.org/glsa/202208-17
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