CVE - CVE-2021-32688

CVE-ID
CVE-2021-32688	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
Nextcloud Server is a Nextcloud package that handles data storage. Nextcloud Server supports application specific tokens for authentication purposes. These tokens are supposed to be granted to a specific applications (e.g. DAV sync clients), and can also be configured by the user to not have any filesystem access. Due to a lacking permission check, the tokens were able to change their own permissions in versions prior to 19.0.13, 20.0.11, and 21.0.3. Thus fileystem limited tokens were able to grant themselves access to the filesystem. The issue is patched in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds aside from upgrading.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://github.com/nextcloud/security-advisories/security/advisories/GHSA-48m7-7r2r-838r URL:https://github.com/nextcloud/security-advisories/security/advisories/GHSA-48m7-7r2r-838r FEDORA:FEDORA-2021-6f327296fe URL:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BVZS26RDME2DYTKET5AECRIZDFUGR2AZ/ FEDORA:FEDORA-2021-9b421b78af URL:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J63NBVPR2AQCAWRNDOZSGRY5II4WS2CZ/ GENTOO:GLSA-202208-17 URL:https://security.gentoo.org/glsa/202208-17 MISC:https://github.com/nextcloud/server/pull/27000 URL:https://github.com/nextcloud/server/pull/27000 MISC:https://hackerone.com/reports/1193321 URL:https://hackerone.com/reports/1193321
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20210512	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20210512)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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