Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in Nextcloud Enterprise Server and Nextcloud Server - CVE-2023-28835
Published: April 4, 2023
Vulnerability identifier: #VU74345
CSH Severity: Low
CVSS v4: 2.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-28835
CWE-ID: CWE-338
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to insecure randomness for default password in file sharing when password policy app is disabled. A remote user can gain unauthorized access to sensitive information on the system.
Affected software
Nextcloud Enterprise Server
Nextcloud Server
Nextcloud Server
How to mitigate CVE-2023-28835
Install updates from vendor's website.
Nextcloud Enterprise Server - addressed in versions 23.0.14, 24.0.10, 25.0.4
Nextcloud Server - addressed in versions 24.0.10, 25.0.4
Nextcloud Server - addressed in versions 24.0.10, 25.0.4