CVE-2023-35172
HighCVSS 8.7Exploitation Probability (EPSS)
Low risk50th percentile - higher than 50% of all known CVEs
Summary
NextCloud Server and NextCloud Enterprise Server have a vulnerability that allows an attacker to bruteforce password reset links in specific versions of the software. This affects versions 25.0.0 to 25.0.7 and 26.0.0 to 26.0.2 for NextCloud Server and various versions of NextCloud Enterprise Server.
Risk Assessment
An attacker could gain access to user accounts by taking control of the password reset process, potentially leading to unauthorized access to data. This poses a serious security threat to the organization.
Recommendation
It is recommended to upgrade to NextCloud Server versions 25.0.7 or 26.0.2 and the corresponding NextCloud Enterprise Server versions that include patches for this vulnerability. Additionally, monitor system logs for potential attack attempts.
Other vulnerabilities in NextCloud Server, NextCloud Enterprise Server
See all- CVE-2023-35928High
In Nextcloud Server versions 25.0.0 to 25.0.7 and 26.0.0 to 26.0.2, as well as in Nextcloud Enterprise Server versions 19.0.0 to 19.0.13.9, there was a vulnerability that allowed users to access another user's login credentials and take over their account. This issue has been patched in newer versions of the software.
- CVE-2023-35927High
NextCloud Server and NextCloud Enterprise Server have a vulnerability that allows a malicious server to modify or delete VCards in the system address book when two servers are registered as trusted and exchange share secrets. This affects versions from 25.0.0 to 25.0.7 and from 26.0.0 to 26.0.2, as well as various versions of Nextcloud Enterprise Server.
- CVE-2023-35171Medium
NextCloud Server and NextCloud Enterprise Server provide file storage for a productivity platform. In versions 26.0.0 to 26.0.2, an attacker could supply a URL that redirects an unsuspecting user from a legitimate domain to an attacker's site.
Original NVD description (English source)
NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform. In NextCloud Server versions 25.0.0 until 25.0.7 and 26.0.0 until 26.0.2 and Nextcloud Enterprise Server versions 21.0.0 until 21.0.9.12, 22.0.0 until 22.2.10.12, 23.0.0 until 23.0.12.7, 24.0.0 until 24.0.12.2, 25.0.0 until 25.0.7, and 26.0.0 until 26.0.2, an attacker can bruteforce the password reset links. Nextcloud Server n 25.0.7 and 26.0.2 and Nextcloud Enterprise Server 21.0.9.12, 22.2.10.12, 23.0.12.7, 24.0.12.2, 25.0.7, and 26.0.2 contain a patch for this issue. No known workarounds are available.