Medium severity · published Sep 7, 2021
CVE-2021-32801
Nextcloud server is an open source, self hosted personal cloud
5.5
CVSS
0.2%
EPSS
No
On KEV
Description
Nextcloud server is an open source, self hosted personal cloud. In affected versions logging of exceptions may have resulted in logging potentially sensitive key material for the Nextcloud Encryption-at-Rest functionality. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.1.0. If upgrading is not an option users are advised to disable system logging to resolve this issue until such time that an upgrade can be performed Note that ff you do not use the Encryption-at-Rest functionality of Nextcloud you are not affected by this bug.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nextcloud Server · Nextcloud
before 20.0.12; 21.0.0 before 21.0.4; 22.0.0 before 22.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-32801
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-32801
Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-mcpf-v65v-359h
Third Party Advisory
https://github.com/nextcloud/server/pull/28082
Permissions Required
https://hackerone.com/reports/1251776
Third Party Advisory
https://security.gentoo.org/glsa/202208-17
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