Vulnerabilities > CVE-2021-32703 - Improper Control of Interaction Frequency vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
LOW Integrity impact
NONE Availability impact
NONE Summary
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, there was a lack of ratelimiting on the shareinfo endpoint. This may have allowed an attacker to enumerate potentially valid share tokens. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-375p-cxxq-gc9p
- https://hackerone.com/reports/1173684
- https://github.com/nextcloud/server/pull/26945
- https://security.gentoo.org/glsa/202208-17
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J63NBVPR2AQCAWRNDOZSGRY5II4WS2CZ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BVZS26RDME2DYTKET5AECRIZDFUGR2AZ/