Medium severity · published Mar 9, 2022
CVE-2022-24741
Nextcloud server is an open source, self hosted cloud style services platform
6.5
CVSS
1.6%
EPSS
No
On KEV
Description
Nextcloud server is an open source, self hosted cloud style services platform. In affected versions an attacker can cause a denial of service by uploading specially crafted files which will cause the server to allocate too much memory / CPU. It is recommended that the Nextcloud Server is upgraded to 21.0.8 , 22.2.4 or 23.0.1. Users unable to upgrade should disable preview generation with the `'enable_previews'` config flag.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 76% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nextcloud Server · Nextcloud
21.0.0 before 21.0.8; 22.0.0 before 22.2.4; 23.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-24741
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-24741
Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jf3h-xf4q-mh89
Patch
https://github.com/nextcloud/server/pull/30291
Exploit
https://hackerone.com/reports/1261225
Third Party Advisory
https://security.gentoo.org/glsa/202208-17
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