Medium severity · published Jan 18, 2024
CVE-2024-22401
All users can reset the allowed apps list for Nextcloud Guest App users
4.3
CVSS
0.5%
EPSS
No
On KEV
Description
Nextcloud guests app is a utility to create guest users which can only see files shared with them. In affected versions users could change the allowed list of apps, allowing them to use apps that were not intended to be used. It is recommended that the Guests app is upgraded to 2.4.1, 2.5.1 or 3.0.1. There are no known workarounds for this vulnerability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
security-advisories · nextcloud
>= 2.4.0, < 2.4.1; >= 2.5.0, < 2.5.1; >= 3.0.0, < 3.0.1 · source: vendor
GU
Guests · Nextcloud
before 2.4.1; 2.5.0; 3.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-22401
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-22401
Patch
https://github.com/nextcloud/guests/pull/1082
Vendor Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wr87-hx3w-29hh
Permissions Required
https://hackerone.com/reports/2250398
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