CVSS: 8.8EPSS: 0%CPEs: 5EXPL: 0CVE-2021-32679 – Filenames not escaped by default in controllers using DownloadResponse
https://notcve.org/view.php?id=CVE-2021-32679
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.0.11, and 21.0.3, filenames where not escaped by default in controllers using `DownloadResponse`. When a user-supplied filename was passed unsanitized into a `DownloadResponse`, this could be used to trick users into downloading malicious files with a benign file extension. This would show in UI behaviours where Nextcloud applications would display a benign file extension (e.g. JPEG), but the file will actually be downloaded with an executable file extension. • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-3hjp-26x8-mhf6 https://github.com/nextcloud/server/pull/27354 https://hackerone.com/reports/1215263 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 • CWE-116: Improper Encoding or Escaping of Output •
CVSS: 5.3EPSS: 0%CPEs: 5EXPL: 0CVE-2021-32678 – Ratelimit not applied on OCS API responses
https://notcve.org/view.php?id=CVE-2021-32678
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.0.11, and 21.0.3, ratelimits are not applied to OCS API responses. This affects any OCS API controller (`OCSController`) using the `@BruteForceProtection` annotation. Risk depends on the installed applications on the Nextcloud Server, but could range from bypassing authentication ratelimits or spamming other Nextcloud users. The vulnerability is patched in versions 19.0.13, 20.0.11, and 21.0.3. • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-48rx-3gmf-g74j https://github.com/nextcloud/server/pull/27329 https://hackerone.com/reports/1214158 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 • CWE-307: Improper Restriction of Excessive Authentication Attempts CWE-799: Improper Control of Interaction Frequency •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 1CVE-2021-32694 – Malicious Android application can crash the Nextcloud Android Client
https://notcve.org/view.php?id=CVE-2021-32694
Nextcloud Android app is the Android client for Nextcloud. In versions prior to 3.15.1, a malicious application on the same device is possible to crash the Nextcloud Android Client due to an uncaught exception. The vulnerability is patched in version 3.15.1. Una aplicación Nextcloud Android es el cliente Android para Nextcloud. En versiones anteriores a 3.15.1, una aplicación maliciosa en el mismo dispositivo puede bloquear el Nextcloud Android Client debido a una excepción no capturada. • https://github.com/nextcloud/android/pull/7919 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h2gm-m374-99vc https://hackerone.com/reports/859136 • CWE-248: Uncaught Exception •
CVSS: 4.3EPSS: 0%CPEs: 1EXPL: 1CVE-2021-32695 – Malicious Android app could access Shared Preferences of the Nextcloud Android client
https://notcve.org/view.php?id=CVE-2021-32695
Nextcloud Android app is the Android client for Nextcloud. In versions prior to 3.16.1, a malicious app on the same device could have gotten access to the shared preferences of the Nextcloud Android application. This required user-interaction as a victim had to initiate the sharing flow and choose the malicious app. The shared preferences contain some limited private data such as push tokens and the account name. The vulnerability is patched in version 3.16.1. • https://github.com/nextcloud/android/pull/8433 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-25m9-cf6c-qf2c https://hackerone.com/reports/1142918 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 1CVE-2021-22905
https://notcve.org/view.php?id=CVE-2021-22905
Nextcloud Android App (com.nextcloud.client) before v3.16.0 is vulnerable to information disclosure due to searches for sharees being performed by default on the lookup server instead of only using the local Nextcloud server unless a global search has been explicitly chosen by the user. Nextcloud Android App (com.nextcloud.client) versiones anteriores a v3.16.0, es vulnerable a una divulgación de información debido a que las búsquedas de compartidos se llevó a cabo por defecto en el servidor de búsqueda en lugar de usar únicamente el servidor local de Nextcloud, a menos que una búsqueda global haya sido elegida explícitamente por el usuario • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-22v9-q3r6-x7cj https://hackerone.com/reports/1167916 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •