Apache CloudStack: Unauthorised access to annotations

CloudStack users can add and read comments (annotations) on resources they are authorised to access.  Due to an access validation issue that affects Apache CloudStack versions from 4.16.0, users who have access, prior access or knowledge of resource UUIDs can list and add comments (annotations) to such resources.  An attacker with a user-account and access or prior knowledge of resource UUIDs may exploit this issue to read contents of the comments (annotations) or add malicious comments (annotations) to such resources.  This may cause potential loss of confidentiality of CloudStack environments and resources if the comments (annotations) contain any privileged information. However, guessing or brute-forcing resource UUIDs are generally hard to impossible and access to listing or adding comments isn't same as access to CloudStack resources, making this issue of very low severity and general low impact. CloudStack admins may also disallow listAnnotations and addAnnotation API access to non-admin roles in their environment as an interim measure.

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信息暴露

Apache CloudStack 安全漏洞

Apache CloudStack是美国阿帕奇（Apache）基金会的一套基础架构即服务（IaaS）云计算平台。该平台主要用于部署和管理大型虚拟机网络。 Apache CloudStack 4.16.0版本存在安全漏洞，该漏洞源于存在访问验证问题，允许用户通过资源UUID列出或添加评论来导致信息泄露。

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