CVSS: 5.0EPSS: 0%CPEs: 4EXPL: 0CVE-2022-24888 – Possible Injection in Nextcloud Server
https://notcve.org/view.php?id=CVE-2022-24888
27 Apr 2022 — Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Prior to versions 20.0.14.4, 21.0.8, 22.2.4, and 23.0.1, it is possible to create files and folders that have leading and trailing \n, \r, \t, and \v characters. The server rejects files and folders that have these characters in the middle of their names, so this might be an opportunity for injection. This issue is fixed in versions 20.0.14.4, 21.0.8, 22.2.4, and 23.0.1. There are currently no known workarounds.... • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-w3h6-p64h-q9jp • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') •
CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-41233 – Missing authorization in Nextcloud text
https://notcve.org/view.php?id=CVE-2021-41233
10 Mar 2022 — Nextcloud text is a collaborative document editing using Markdown built for the nextcloud server. Due to an issue with the Nextcloud Text application, which is by default shipped with Nextcloud Server, an attacker is able to access the folder names of "File Drop". For successful exploitation an attacker requires knowledge of the sharing link. It is recommended that users upgrade their Nextcloud Server to 20.0.14, 21.0.6 or 22.2.1. Users unable to upgrade should disable the Nextcloud Text application in the ... • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-26c8-35cm-xq9m • CWE-862: Missing Authorization CWE-863: Incorrect Authorization •
CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 1CVE-2022-24741 – High memory usage in Nextcloud server
https://notcve.org/view.php?id=CVE-2022-24741
09 Mar 2022 — Nextcloud server is an open source, self hosted cloud style services platform. In affected versions an attacker can cause a denial of service by uploading specially crafted files which will cause the server to allocate too much memory / CPU. It is recommended that the Nextcloud Server is upgraded to 21.0.8 , 22.2.4 or 23.0.1. Users unable to upgrade should disable preview generation with the `'enable_previews'` config flag. El servidor Nextcloud es una plataforma de servicios de código abierto, de estilo de... • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jf3h-xf4q-mh89 • CWE-400: Uncontrolled Resource Consumption CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 4.3EPSS: 0%CPEs: 3EXPL: 0CVE-2021-41241 – Advanced permissions is not respected for subfolders in Nextcloud server
https://notcve.org/view.php?id=CVE-2021-41241
08 Mar 2022 — Nextcloud server is a self hosted system designed to provide cloud style services. The groupfolders application for Nextcloud allows sharing a folder with a group of people. In addition, it allows setting "advanced permissions" on subfolders, for example, a user could be granted access to the groupfolder but not specific subfolders. Due to a lacking permission check in affected versions, a user could still access these subfolders by copying the groupfolder to another location. It is recommended that the Nex... • https://github.com/nextcloud/groupfolders/issues/1692 • CWE-862: Missing Authorization CWE-863: Incorrect Authorization •
CVSS: 5.3EPSS: 0%CPEs: 3EXPL: 0CVE-2021-41239 – User enumeration setting not respected in Nextcloud server
https://notcve.org/view.php?id=CVE-2021-41239
08 Mar 2022 — Nextcloud server is a self hosted system designed to provide cloud style services. In affected versions the User Status API did not consider the user enumeration settings by the administrator. This allowed a user to enumerate other users on the instance, even when user listings where disabled. It is recommended that the Nextcloud Server is upgraded to 20.0.14, 21.0.6 or 22.2.1. There are no known workarounds. • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-g722-cm3h-8wrx • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-862: Missing Authorization •
CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-41179 – Two-Factor Authentication not enforced for pages marked as public
https://notcve.org/view.php?id=CVE-2021-41179
25 Oct 2021 — Nextcloud is an open-source, self-hosted productivity platform. Prior to Nextcloud Server versions 20.0.13, 21.0.5, and 22.2.0, the Two-Factor Authentication wasn't enforced for pages marked as public. Any page marked as `@PublicPage` could thus be accessed with a valid user session that isn't authenticated. This particularly affects the Nextcloud Talk application, as this could be leveraged to gain access to any private chat channel without going through the Two-Factor flow. It is recommended that the Next... • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-7hvh-rc6f-px23 • CWE-304: Missing Critical Step in Authentication •
CVSS: 8.8EPSS: 0%CPEs: 3EXPL: 0CVE-2021-41178 – File Traversal affecting SVG files on Nextcloud Server
https://notcve.org/view.php?id=CVE-2021-41178
25 Oct 2021 — Nextcloud is an open-source, self-hosted productivity platform. Prior to versions 20.0.13, 21.0.5, and 22.2.0, a file traversal vulnerability makes an attacker able to download arbitrary SVG images from the host system, including user provided files. This could also be leveraged into a XSS/phishing attack, an attacker could upload a malicious SVG file that mimics the Nextcloud login form and send a specially crafted link to victims. The XSS risk here is mitigated due to the fact that Nextcloud employs a str... • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jp9c-vpr3-m5rf • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE-23: Relative Path Traversal CWE-434: Unrestricted Upload of File with Dangerous Type •
CVSS: 8.1EPSS: 0%CPEs: 3EXPL: 0CVE-2021-41177 – Rate-limits not working on instances without configured memory cache backend
https://notcve.org/view.php?id=CVE-2021-41177
25 Oct 2021 — Nextcloud is an open-source, self-hosted productivity platform. Prior to versions 20.0.13, 21.0.5, and 22.2.0, Nextcloud Server did not implement a database backend for rate-limiting purposes. Any component of Nextcloud using rate-limits (as as `AnonRateThrottle` or `UserRateThrottle`) was thus not rate limited on instances not having a memory cache backend configured. In the case of a default installation, this would notably include the rate-limits on the two factor codes. It is recommended that the Nextcl... • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-fj39-4qx4-m3f2 • CWE-799: Improper Control of Interaction Frequency •
CVSS: 10.0EPSS: 0%CPEs: 3EXPL: 0CVE-2021-32802 – Preview generation used third-party library not suited for user-generated content in Nextcloud server
https://notcve.org/view.php?id=CVE-2021-32802
07 Sep 2021 — Nextcloud server is an open source, self hosted personal cloud. Nextcloud supports rendering image previews for user provided file content. For some image types, the Nextcloud server was invoking a third-party library that wasn't suited for untrusted user-supplied content. There are several security concerns with passing user-generated content to this library, such as Server-Side-Request-Forgery, file disclosure or potentially executing code on the system. The risk depends on your system configuration and t... • https://docs.nextcloud.com/server/21/admin_manual/configuration_files/previews_configuration.html#disabling-previews • CWE-829: Inclusion of Functionality from Untrusted Control Sphere •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-32801 – Exceptions may have logged Encryption-at-Rest key content in Nextcloud server
https://notcve.org/view.php?id=CVE-2021-32801
07 Sep 2021 — Nextcloud server is an open source, self hosted personal cloud. In affected versions logging of exceptions may have resulted in logging potentially sensitive key material for the Nextcloud Encryption-at-Rest functionality. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.1.0. If upgrading is not an option users are advised to disable system logging to resolve this issue until such time that an upgrade can be performed Note that ff you do not use the Encryption-at-Rest functio... • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-mcpf-v65v-359h • CWE-532: Insertion of Sensitive Information into Log File •