U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Vulnerability Change Records for CVE-2024-50386

Change History

New CVE Received from Apache Software Foundation 11/12/2024 10:15:10 AM

Action Type Old Value New Value
Added Description

								
							
							
						
Account users in Apache CloudStack by default are allowed to register templates to be downloaded directly to the primary storage for deploying instances. Due to missing validation checks for KVM-compatible templates in CloudStack 4.0.0 through 4.18.2.4 and 4.19.0.0 through 4.19.1.2, an attacker that can register templates, can use them to deploy malicious instances on KVM-based environments and exploit this to gain access to the host filesystems that could result in the compromise of resource integrity and confidentiality, data loss, denial of service, and availability of KVM-based infrastructure managed by CloudStack.


Users are recommended to upgrade to Apache CloudStack 4.18.2.5 or 4.19.1.3, or later, which addresses this issue. 

Additionally, all user-registered KVM-compatible templates can be scanned and checked that they are flat files that should not be using any additional or unnecessary features. For example, operators can run the following command on their file-based primary storage(s) and inspect the output. An empty output for the disk being validated means it has no references to the host filesystems; on the other hand, if the output for the disk being validated is not empty, it might indicate a compromised disk. However, bear in mind that (i) volumes created from templates will have references for the templates at first and (ii) volumes can be consolidated while migrating, losing their references to the templates. Therefore, the command execution for the primary storages can show both false positives and false negatives.


for file in $(find /path/to/storage/ -type f -regex [a-f0-9\-]*.*); do echo "Retrieving file [$file] info. If the output is not empty, that might indicate a compromised disk; check it carefully."; qemu-img info -U $file | grep file: ; printf "\n\n"; done
For checking the whole template/volume features of each disk, operators can run the following command:


for file in $(find /path/to/storage/ -type f -regex [a-f0-9\-]*.*); do echo "Retrieving file [$file] info."; qemu-img info -U $file; printf "\n\n"; done
Added CVSS V3.1

								
							
							
						
Apache Software Foundation AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Added CWE

								
							
							
						
Apache Software Foundation CWE-20
Added Reference

								
							
							
						
Apache Software Foundation https://cloudstack.apache.org/blog/security-release-advisory-4.18.2.5-4.19.1.3 [No types assigned]
Added Reference

								
							
							
						
Apache Software Foundation https://lists.apache.org/thread/d0x83c2cyglzzdw8csbop7mj7h83z95y [No types assigned]
Added Reference

								
							
							
						
Apache Software Foundation https://www.shapeblue.com/shapeblue-security-advisory-apache-cloudstack-security-releases-4-18-2-5-and-4-19-1-3/ [No types assigned]