SB2025012094 - Multiple vulnerabilities in Nextcloud Server and Enterprise Server
Published: January 20, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Insecure Storage of Sensitive Information (CVE-ID: CVE-2024-52519)
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to the OAuth2 client secrets are stored in a recoverable way. An administrator with physical access can gain unauthorized access to sensitive information on the system.
2) Resource exhaustion (CVE-ID: CVE-2024-52520)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources. A remote user can trick a link reference provider into downloading bigger websites than intended, trigger resource exhaustion and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-fvpc-8hq6-jgq2
- https://github.com/nextcloud/server/pull/47635
- https://github.com/nextcloud/server/commit/09b8aea8f6783514bffe00df6abbf9fa542faac5
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-pxqf-cfxw-mqmj
- https://github.com/nextcloud/server/pull/47627
- https://github.com/nextcloud/server/commit/873c42b0f1383d5b6f2b7a481e1d9620ed30f44a