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    CVE-2021-32703

    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.

    Published:Jul 12, 2021
    Last Modified:Nov 21, 2024
    EPS:Jul 12, 2021
    EPSS Score:0.01728
    CVSS Score:5.3

    Affected Products

    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Nextcloud
    Product
    Nextcloud Server

    Exploits

    No exploit reference

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    References

    https://github.com/nextcloud/security-advisories/security/advisories/GHSA-375p-cxxq-gc9p
    https://github.com/nextcloud/server/pull/26945
    https://hackerone.com/reports/1173684
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BVZS26RDME2DYTKET5AECRIZDFUGR2AZ/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J63NBVPR2AQCAWRNDOZSGRY5II4WS2CZ/
    https://security.gentoo.org/glsa/202208-17
    https://github.com/nextcloud/security-advisories/security/advisories/GHSA-375p-cxxq-gc9p
    https://github.com/nextcloud/server/pull/26945
    https://hackerone.com/reports/1173684
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BVZS26RDME2DYTKET5AECRIZDFUGR2AZ/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J63NBVPR2AQCAWRNDOZSGRY5II4WS2CZ/
    https://security.gentoo.org/glsa/202208-17

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High