Apache CloudStack vulnerabilities

Account users are allowed by default to register templates to be downloaded directly to the primary storage for deploying instances using the KVM hypervisor. Due to missing file name sanitization, an attacker can register malicious templates to execute arbitrary code on the KVM hosts.

Improper Access Control vulnerability in Apache CloudStack's Kubernetes Service (CKS) plugin, allowing cross-tenant manipulation of the Kubernetes cluster while adding and removing nodes. Affects versions from 4.21.0.0 through 4.22.1.0.

Improper Encoding or Escaping of Output vulnerability in Apache CloudStack's UI while using Instance Reset Password functionality. Affects versions from 4.15.1.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

Server-Side Request Forgery (SSRF) vulnerability in Apache CloudStack's webhook module, exploitable via webhook delivery requests. Affects versions from 4.20.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

The Proxmox extension for Apache CloudStack allows unauthorized access to instances belonging to other tenants. The issue arises from improper use of an instance setting, enabling attackers to modify and gain control over virtual machines of other users.

Apache CloudStack before version 4.5.2 does not properly preserve VNC passwords when migrating KVM virtual machines, allowing remote attackers to gain access by connecting to the VNC server.

Apache CloudStack versions 4.7.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0 have a missing release of resource after effective lifetime vulnerability in the scoped global configuration functionality. This may lead to denial of service (DoS) for the management server.

Certificate validation failures in SAML authentication in Apache CloudStack 4.20.3.0 and 4.22.1.0 allow a malicious agent to forge a SAML response to the management server. The agent must spoof the IdP IP address or register a URL of its own choosing, after which it can allow logging on with forged signatures. Users are recommended to upgrade to versions 4.20.3.1 or 4.22.1.1 and above.

Improper access control in CloudStack's annotation functionality allows unauthorized comment creation and disclosure. The addAnnotation and listAnnotation APIs perform an ownership check but fail to honor its result correctly, allowing any authenticated user to write and read annotations on entities they don't own. Affects versions from 4.15.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

Improper authorization for CRUD operations on Project Roles and Project Role permissions for domain admins in CloudStack. A Domain Admin can create, update, delete, and list project roles and permissions for projects in any domain, not just their own. Affects versions from 4.15.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

Missing authorization issue for domain admins in CloudStack's host tags listing functionality. Domain Admins have permission to call listHostTags API, but it returns host tags for every host without domain scoping. Affects versions from 4.12.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache CloudStack's Webhook module while listing and deleting deliveries. Affects versions from 4.20.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

Authenticated pre-validation SSRF vulnerability in Apache CloudStack's template and ISO registration functionality. When registering a template or ISO, CloudStack makes a live HTTP HEAD/GET call to determine file size before URL validation. Affects versions 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

Command Injection vulnerability in Apache CloudStack's run and get diagnostics functionality for system VMs and virtual routers. An authenticated user with required permissions can achieve arbitrary command execution on system VM and/or Virtual Router instances, running as root. Affects versions from 4.20.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

Improper Encoding or Escaping of Output vulnerability in Apache CloudStack's UI while using Lock User Functionality. Affects versions from 4.20.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache CloudStack's OAuth2 authentication plugin and Google OAuth integration. Affects versions from 4.19.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

Improper Privilege Management vulnerability in Apache CloudStack's Two-factor authentication plugin allowing bypass of the two-factor authentication disable flow. Affects versions from 4.18.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache CloudStack's LDAP authentication plugin while listing LDAP providers. LDAP configurations can be listed by any authenticated user with access to the listLdapConfigurations API, which is available to all default roles. Affects versions from 4.2.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

Cleartext Storage of Sensitive Information vulnerability in Apache CloudStack with AsyncJob storage in the database. Affects versions from 4.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

Sensitive information exposure vulnerability in Apache CloudStack's OAuth authentication plugin when listing OAuth providers. Affects versions from 4.19.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

Missing authorization and sensitive information exposure in Apache CloudStack's userdata-related APIs. Several APIs, including deleteUserData, linkUserDataToTemplate, resetUserDataForVirtualMachine, deployVirtualMachine, and updateVirtualMachine, have missing or insufficient access control validation, potentially allowing cross-tenant/cross-account access to userdata resources. Affects versions from 4.18.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0. The deleteCniConfiguration API, introduced in 4.21.0.0, also exhibits similar behavior.

SSRF via Metalink mirror URL resolution and RCE on KVM hypervisor. An authenticated tenant can register a template pointing to an attacker-controlled metalink file containing internal targets. The Secondary Storage VM will retrieve the data and persist it as a template file. Additionally, an authenticated tenant with the default User role can execute arbitrary shell commands as root on the KVM hypervisor host. Affects versions from 4.14.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

OS Command Injection vulnerability in Apache CloudStack's NAS backup provider plugin. The addBackupRepository API (available since 4.20.0.0) and updateBackupRepository API (introduced in 4.22.0.0) accept unsanitized command options for the backup repository. A malicious operator account can exploit this to inject arbitrary commands that execute on the KVM hypervisor host when any account subsequently performs a backup restore. Affects versions from 4.20.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

Due to multiple time-of-check time-of-use race conditions in the resource count check and increment logic, as well as missing validations, users can exceed allocation limits configured for their accounts/domains. This can be used to degrade infrastructure resources and lead to denial of service. Users are recommended to upgrade to Apache CloudStack versions 4.20.3.0 or 4.22.0.1, or later.

Missing MinIO policy cleanup on bucket deletion via Apache CloudStack allows users to retain access to buckets which they previously owned. If another user creates a new bucket with the same name, the previous owners can gain unauthorized read and write access to it.