Damon Smith

Name of the Vulnerable Software and Affected Versions: Apache CloudStack versions 4.5.0 through 4.18.2.1 Apache CloudStack versions 4.19.0.0 through 4.19.0.2 Description: The issue is related to the SAML authentication mechanism in Apache CloudStack, which does not enforce signature checks when SAML authentication is enabled. This allows an attacker to bypass authentication by submitting a spoofed SAML response with no signature and known or guessed `username` and other user details of a SAML-enabled CloudStack user-account. This can result in a complete compromise of the resources owned and/or accessible by a SAML-enabled user-account. Recommendations: For Apache CloudStack versions 4.5.0 through 4.18.2.1, upgrade to version 4.18.2.2 or later. For Apache CloudStack versions 4.19.0.0 through 4.19.0.2, upgrade to version 4.19.1.0 or later. As a temporary workaround, consider disabling the SAML authentication plugin by setting the `saml2.enabled` global setting to `false`.

**Name of the Vulnerable Software and Affected Versions** Apache CloudStack versions prior to 4.18.2.1 Apache CloudStack versions prior to 4.19.0.2 **Description** The CloudStack cluster service runs on an unauthenticated port (default 9090) that can be misused to run arbitrary commands on targeted hypervisors and CloudStack management server hosts. Some of these commands were found to have command injection vulnerabilities that can result in arbitrary code execution via agents on the hosts that may run as a privileged user. An attacker that can reach the cluster service on the unauthenticated port (default 9090) can exploit this to perform remote code execution on CloudStack managed hosts and result in complete compromise of the confidentiality, integrity, and availability of CloudStack managed infrastructure. **Recommendations** For Apache CloudStack versions prior to 4.18.2.1, upgrade to version 4.18.2.1 or later. For Apache CloudStack versions prior to 4.19.0.2, upgrade to version 4.19.0.2 or later. As a temporary workaround, restrict the network access to the cluster service port (default 9090) on a CloudStack management server host to only its peer CloudStack management server hosts.

**Name of the Vulnerable Software and Affected Versions** CloudStack versions prior to 4.18.2.1 CloudStack versions prior to 4.19.0.2 **Description** The CloudStack integration API service allows running its unauthenticated API server for internal portal integrations and testing purposes. Due to improper initialization logic, the integration API service listens on a random port when its port value is set to 0. An attacker with access to the CloudStack management network could scan and find the randomized integration API service port, exploiting it to perform unauthorized administrative actions and remote code execution on CloudStack managed hosts. This could result in the complete compromise of the confidentiality, integrity, and availability of CloudStack managed infrastructure. **Recommendations** For versions prior to 4.18.2.1, upgrade to version 4.18.2.1 or later. For versions prior to 4.19.0.2, upgrade to version 4.19.0.2 or later. As a temporary workaround, restrict network access on the CloudStack management server hosts to only essential ports.