Medium severity · published Oct 27, 2022
CVE-2022-39330
Database resource exhaustion for logged-in users via sharee recommendations with circles
4.3
CVSS
1.1%
EPSS
No
On KEV
Description
Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Nextcloud Server prior to versions 23.0.10 and 24.0.6 and Nextcloud Enterprise Server prior to versions 22.2.10, 23.0.10, and 24.0.6 are vulnerable to a logged-in attacker slowing down the system by generating a lot of database/cpu load. Nextcloud Server versions 23.0.10 and 24.0.6 and Nextcloud Enterprise Server versions 22.2.10, 23.0.10, and 24.0.6 contain patches for this issue. As a workaround, disable the Circles app.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% 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, < 23.0.9; >= 24.0.0, < 24.0.5; < 22.2.10 · source: vendor
NE
Nextcloud Enterprise Server · Nextcloud
before 22.2.10; 23.0.0 before 23.0.10; 24.0.0 before 24.0.6 · source: NVD
NS
Nextcloud Server · Nextcloud
before 23.0.10; 24.0.0 before 24.0.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-39330
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-39330
Patch
https://github.com/nextcloud/circles/pull/1147
Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wxx7-w5p4-7x4c
Permissions Required
https://hackerone.com/reports/1688199
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