CVE-2023-25579 – Directory traversal in Nextcloud server
https://notcve.org/view.php?id=CVE-2023-25579
Nextcloud server is a self hosted home cloud product. In affected versions the `OC\Files\Node\Folder::getFullPath()` function was validating and normalizing the string in the wrong order. The function is used in the `newFile()` and `newFolder()` items, which may allow to creation of paths outside of ones own space and overwriting data from other users with crafted paths. This issue has been addressed in versions 25.0.2, 24.0.8, and 23.0.12. Users are advised to upgrade. • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-273v-9h7x-p68v https://github.com/nextcloud/server/pull/35074 • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') •
CVE-2023-25162 – Nextcloud Server vulnerable to SSRF via filter bypass due to lax checking on IPs
https://notcve.org/view.php?id=CVE-2023-25162
Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Nextcloud Server prior to 24.0.8 and 23.0.12 and Nextcloud Enterprise server prior to 24.0.8 and 23.0.12 are vulnerable to server-side request forgery (SSRF). Attackers can leverage enclosed alphanumeric payloads to bypass IP filters and gain SSRF, which would allow an attacker to read crucial metadata if the server is hosted on the AWS platform. Nextcloud Server 24.0.8 and 23.0.2 and Nextcloud Enterprise Server 24.0.8 and 23.0.12 contain a patch for this issue. No known workarounds are available. • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-mqrx-grp7-244m https://github.com/nextcloud/server/pull/34160 https://hackerone.com/reports/1702864 • CWE-918: Server-Side Request Forgery (SSRF) •
CVE-2023-25161 – Nextcloud Server's missing rate limiting on password reset functionality allows sending lots of emails
https://notcve.org/view.php?id=CVE-2023-25161
Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Nextcloud Server and Nextcloud Enterprise Server prior to versions 25.0.1 24.0.8, and 23.0.12 missing rate limiting on password reset functionality. This could result in service slowdown, storage overflow, or cost impact when using external email services. Users should upgrade to Nextcloud Server 25.0.1, 24.0.8, or 23.0.12 or Nextcloud Enterprise Server 25.0.1, 24.0.8, or 23.0.12 to receive a patch. No known workarounds are available. • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-492h-596q-xr2f https://github.com/nextcloud/server/pull/34632 https://hackerone.com/reports/1691195 • CWE-284: Improper Access Control •
CVE-2022-41969 – Nextcloud Server has no password length limit when creating a user as an administrator
https://notcve.org/view.php?id=CVE-2022-41969
Nextcloud Server is an open source personal cloud server. Prior to versions 23.0.11, 24.0.7, and 25.0.0, there is no password length limit when creating a user as an administrator. An administrator can cause a limited DoS attack against their own server. Versions 23.0.11, 24.0.7, and 25.0.0 contain a fix for the issue. As a workaround, don't create user accounts with long passwords. • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4gm7-j7wg-m4fx https://github.com/nextcloud/server/pull/34500 https://hackerone.com/reports/1727424 • CWE-400: Uncontrolled Resource Consumption CWE-521: Weak Password Requirements •
CVE-2022-41968 – Nextcloud Server's calendar name length not validated before writing to database
https://notcve.org/view.php?id=CVE-2022-41968
Nextcloud Server is an open source personal cloud server. Prior to versions 23.0.10 and 24.0.5, calendar name lengths are not validated before writing to a database. As a result, an attacker can send unnecessary amounts of data against the database. Version 23.0.10 and 24.0.5 contain patches for the issue. No known workarounds are available. • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-m92j-xxc8-hq3v https://github.com/nextcloud/server/pull/33139 https://hackerone.com/reports/1596148 • CWE-400: Uncontrolled Resource Consumption CWE-1284: Improper Validation of Specified Quantity in Input •