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Rohit Yadav
Screenshot 2022-07-18 at 15.33.00.png

Apache CloudStack version 4.5.0 and later has a SAML 2.0 authentication Service Provider plugin which is found to be vulnerable to XML external entity (XXE) injection. This plugin is not enabled by default and the attacker would require that this plugin be enabled to exploit the vulnerability. When the SAML 2.0 plugin is enabled in affected versions of Apache CloudStack could potentially allow the exploitation of XXE vulnerabilities. The SAML 2.0 messages constructed during the authentication flow in Apache CloudStack are XML-based and the XML data is parsed by various standard libraries that are now understood to be vulnerable to XXE injection attacks such as arbitrary file reading, possible denial of service, server-side request forgery (SSRF) on the CloudStack management server.

On 14th June 2022, a new issue affecting only KVM users using Shared Mount Point storage was reported [1]. This issue affects the creation and the usage of existing Shared Mount Point storage pools on Apache CloudStack

Apache CloudStack added support for the StorPool storage based on Shared Mount Point. However, the current version of CloudStack doesn't allow multiple implementations of Shared Mount Point storage pool providers, causing the StorPool provider to override the default implementation. This affected the other storage pool providers for Shared Mount Point since CloudStack tries to add them as a StorPool storage pool.

To mitigate the issue, a CloudStack administrator needs to do the following on version

  • On each management server: stop the CloudStack management service, remove the Storpool plugin jar on /usr/share/cloudstack-management/lib/cloud-plugin-storage-volume-storpool- and restart the CloudStack management service
  • On each KVM host: stop the CloudStack agent service, remove the StorPool plugin jar on /usr/share/cloudstack-agent/lib/cloud-plugin-storage-volume-storpool- and restart the CloudStack agent service

Note: This workaround removes the StorPool plugin support. StorPool users should not apply the workaround to continue using their Storpool storage.

This issue will be fixed in the upcoming CloudStack version


Apache CloudStack 4.17 is the latest release of the cloud management platform from the Apache Software Foundation and is a result of months of work from the development community. Apache CloudStack 4.17 is an LTS (Long Term Support) release so will be maintained for a period of 18 months after release.

Ivet Petrova
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For the 10th consecutive year, the Apache CloudStack community is organising its major event - CloudStack Collaboration Conference, running from 14th to 16th November 2022. The event will be a hybrid event, giving attendees and speakers the option to join in Sofia, Bulgaria (Exact location TBD) or remotely from their computers. By doing so, the conference will allow more people from the Apache CloudStack community and people interested in the technology, to learn more about it and its latest capabilities and integrations.

Ivet Petrova

At the beginning of April 2022, vulnerabilities in the Spring Framework for Java were publicly revealed. Many companies noticed active exploitation of the Spring4Shell vulnerability assigned as CVE-2022-22965. This vulnerability allows hackers to execute the Mirai botnet malware. The exploit allows threat actors to download the Mirai sample to the /tmp folder and execute them after changing its execute permission using chmod.

Daan Hoogland

Apache CloudStack prior to used insecure random number generation for project invitation tokens. If a project invite is created based only on an email address, a random token is generated. An attacker with knowledge of the project ID and the fact that the invite is sent, could generate time deterministic tokens and brute force attempt to use them prior to the legitimate receiver accepting the invite.

Ivet Petrova

Apache CloudStack is proven to be one of the most scalable, free and open-source cloud computing operating systems for large-scale private, public, and hybrid clouds. Terraform is an open-source infrastructure as code software tool that provides a consistent CLI workflow to manage resources in many cloud services.

Rohit Yadav

On 9th December 2021, a new zero-day vulnerability for Apache Log4j was reported. It is by now tracked under CVE-2021-44228:

CVE-2021-44228 vulnerability is classified under the highest severity mark and allows an attacker to execute arbitrary code by injecting a sub-string in the form "${jndi:ldap://}" into a logged message. Apache Log4j 2.x is reported to be affected as it performs a lookup (string substitution) using the JNDI protocol, whenever the "${jndi:...}" string is found within a message parameter.