Low severity · published Aug 4, 2022
CVE-2022-31120
Federated share accepting/declining is not logged in audit log in Nextcloud Server
2.7
CVSS
0.9%
EPSS
No
On KEV
Description
Nextcloud server is an open source personal cloud solution. The audit log is used to get a full trail of the actions which has been incompletely populated. In affected versions federated share events were not properly logged which would allow brute force attacks to go unnoticed. This behavior exacerbates the impact of CVE-2022-31118. It is recommended that the Nextcloud Server is upgraded to 22.2.7, 23.0.4 or 24.0.0. There are no workarounds available.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
security-advisories · nextcloud
>= 23.0.0, < 23.0.4; < 22.2.7 · source: vendor
NS
Nextcloud Server · Nextcloud
before 22.2.7; 23.0.0 before 23.0.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-31120
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-31120
Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-9qvg-7fwg-722x
Patch
https://github.com/nextcloud/server/pull/31594/commits/1d8bf9a89c6856218802a1d365000a5831be8655
Vendor Advisory
https://portal.nextcloud.com/article/using-the-audit-log-44.html
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