CVE-2021-32635— Singularity 命令注入漏洞

Action Commands (run/shell/exec) Against Library URIs Ignore Configured Remote Endpoint

Singularity is an open source container platform. In verions 3.7.2 and 3.7.3, Dde to incorrect use of a default URL, `singularity` action commands (`run`/`shell`/`exec`) specifying a container using a `library://` URI will always attempt to retrieve the container from the default remote endpoint (`cloud.sylabs.io`) rather than the configured remote endpoint. An attacker may be able to push a malicious container to the default remote endpoint with a URI that is identical to the URI used by a victim with a non-default remote endpoint, thus executing the malicious container. Only action commands (`run`/`shell`/`exec`) against `library://` URIs are affected. Other commands such as `pull` / `push` respect the configured remote endpoint. The vulnerability is patched in Singularity version 3.7.4. Two possible workarounds exist: Users can only interact with the default remote endpoint, or an installation can have an execution control list configured to restrict execution to containers signed with specific secure keys.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

通信信道对预期端点的不适当限制

Singularity 命令注入漏洞

Singularity是Singularity 团队（Singularity）的一个开源的容器管理平台。该软件支持在其桌面上构建应用程序，并在任何公共云上或在计算边缘运行数百或数千个实例。 Singularity 3.7.2版本和3.7.3版本存在命令注入漏洞，该漏洞允许远程攻击者在目标系统上执行任意命令。

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