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CVE-2023-359288.5HighCWE-274

CVE-2023-35928: Nextcloud user scoped external storage can be used to gather credentials of other users

nextcloud · security-advisories

Affected: nextcloud security-advisories · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

1.0%probability of exploitation in the next 30 days
62nd percentile
050100

Higher than 62% of scored CVEs

8.5HighCVSS 3.1
LowHigh

DescriptionCVE.org

Nextcloud Server is a space for data storage on Nextcloud, a self-hosted productivity playform. In NextCloud Server versions 25.0.0 until 25.0.7 and 26.0.0 until 26.0.2 and Nextcloud Enterprise Server versions 19.0.0 until 19.0.13.9, 20.0.0 until 20.0.14.14, 21.0.0 until 21.0.9.12, 22.0.0 until 22.2.10.12, 23.0.0 until 23.0.12.7, 24.0.0 until 24.0.12.2, 25.0.0 until 25.0.7, and 26.0.0 until 26.0.2, a user could use this functionality to get access to the login credentials of another user and take over their account. This issue has been patched in Nextcloud Server versions 25.0.7 and 26.0.2 and NextCloud Enterprise Server versions 19.0.13.9, 20.0.14.14, 21.0.9.12, 22.2.10.12, 23.0.12.7, 24.0.12.2, 25.0.7, and 26.0.2. Three workarounds are available. Disable app files_external. Change config setting "Allow users to mount external storage" to disabled in "Administration" > "External storage" settings `…/index.php/settings/admin/externalstorages`. Change config setting to disallow users to create external storages in "Administration" > "External storage" settings `…/index.php/settings/admin/externalstorages` with the types FTP, Nextcloud, SFTP, and/or WebDAV.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • nextcloud · security-advisoriesNextcloud Enterprise Server >= 19.0.0, < 19.0.13.9; Nextcloud Enterprise Server >= 20.0.0.0, < 20.0.14.14; Nextcloud Enterprise Server >= 21.0.0.0, < 21.0.9.12; Nextcloud Enterprise Server >= 22.0.0.0, < 22.2.10.12; Nextcloud Enterprise Server >= 23.0.0.0, < 23.0.12.7; Nextcloud Enterprise Server >= 24.0.0.0, < 24.0.12.2 and 4 more

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
nextcloud
Published
June 2023

CoverageNo articles yet

No CyberSIXT article names CVE-2023-35928 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

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