Vulnerability Description
Proxmox Virtual Environment is an open-source server management platform for enterprise virtualization. Insufficient safeguards against malicious API response values allow authenticated attackers with 'Sys.Audit' or 'VM.Monitor' privileges to download arbitrary host files via the API. When handling the result from a request handler before returning it to the user, the handle_api2_request function will check for the ‘download’ or ‘data’->’download’ objects inside the request handler call response object. If present, handle_api2_request will read a local file defined by this object and return it to the user. Two endpoints were identified which can control the object returned by a request handler sufficiently that the ’download’ object is defined and user controlled. This results in arbitrary file read. The privileges of this file read can result in full compromise of the system by various impacts such as disclosing sensitive files allowing for privileged session forgery.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://forum.proxmox.com/threads/proxmox-virtual-environment-security-advisorie
- https://git.proxmox.com/?p=pve-http-server.git;a=blob;f=src/PVE/APIServer/AnyEve
FAQ
What is CVE-2024-21545?
CVE-2024-21545 is a vulnerability with a CVSS score of 8.2 (HIGH). Proxmox Virtual Environment is an open-source server management platform for enterprise virtualization. Insufficient safeguards against malicious API response values allow authenticated attackers with...
How severe is CVE-2024-21545?
CVE-2024-21545 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-21545?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.