SB2025012090 - Reversible One-Way Hash in Nextcloud Server and Enterprise Server
Published: January 20, 2025
Security Bulletin ID
SB2025012090
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Reversible One-Way Hash (CVE-ID: CVE-2024-52521)
CWE-ID: CWE-328 - Use of Weak Hash
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the MD5 hashes are used to check background jobs for their uniqueness. A remote user can cause potential hash collision for background jobs to skip queuing them.
Remediation
Install update from vendor's website.