CVE-2023-28833

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Summary

CVECVE-2023-28833
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-03-30 19:15:00 UTC
Updated2023-04-07 14:40:00 UTC
DescriptionNextcloud server is an open source home cloud implementation. In affected versions admins of a server were able to upload a logo or a favicon and to provided a file name which was not restricted and could overwrite files in the appdata directory. Administrators may have access to overwrite these files by other means but this method could be exploited by tricking an admin into uploading a maliciously named file. It is recommended that the Nextcloud Server is upgraded to 24.0.10 or 25.0.4. Users unable to upgrade should avoid ingesting logo files from untrusted sources.

Risk And Classification

Problem Types: CWE-434

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Nextcloud Nextcloud Server All All All All
Application Nextcloud Nextcloud Server All All All All

References

ReferenceSourceLinkTags
Ability to control the filename when uploading a logo or favicon as admin in the theming settings · Advisory · nextcloud/security-advisories · GitHub MISC github.com
Limit key names when uploading theme images by PVince81 · Pull Request #36095 · nextcloud/server · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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