Vesta v1.0.3 云原生安全检测工具 发布:增加大量RBAC检测规则

Vesta 是一款实用、方便的镜像扫描以及 Docker、Kubernetes 基线安全检查工具。 致力检查因 Docker 或 Kubernetes 错误配置而导致的各种潜在安全问题的发生。

Vesta v1.0.3 更新内容如下:

新功能

  • 镜像检查增加对Java,PHP,Rust依赖的版本检查支持
  • 增加istio的检查,包括istio版本检查,以及istio header请求过度敏感信息检查,参考issue
  • 增加Docker history命令行检查,检查是否存在echo 弱密码的命令出现

改进

  • npm检查方法改进,采用全局搜索package.json文件进行分析
  • 运行的容器检查将挂载的路径加入到检查内容中
  • 改进镜像Layer的分析方法
  • 修改RBAC的检测规则
  • 更加详细的结果打印

在RBAC检测中,我们注意到未知User的高危权限应该被打印出来以供开发者自查。同时RBAC的风险等级被重新化为high,medium,low,warning四个等级,对高风险resources,例如pods,deployments等结合对应的操作权限进行重点检查,未知resources将不再化为高风险范围。增加Group的风险检查,包括system:unauthenticated,system:serviceaccounts: 等类名的检测,并且将rolebinding检测的结果结合/var/run/secrets/kubernetes.io/serviceaccount的挂载情况进行综合评估。用例如下

Pods:
+----+--------------------------------+--------------------------------+--------------------------------+-----------------------+----------+--------------------------------+
| ID |           POD DETAIL           |             PARAM              |             VALUE              |         TYPE          | SEVERITY |          DESCRIPTION           |
+----+--------------------------------+--------------------------------+--------------------------------+-----------------------+----------+--------------------------------+
|  1 | Name: vulntest | Namespace:    | sidecar name: vulntest |       | true                           | Pod                   | critical | There has a potential          |
|    | default | Status: Running |    | Privileged                     |                                |                       |          | container escape in privileged |
|    | Node Name: docker-desktop      |                                |                                |                       |          | module.                        |
+    +                                +--------------------------------+--------------------------------+-----------------------+----------+--------------------------------+
|    |                                | sidecar name: vulntest |       | memory, cpu, ephemeral-storage | Pod                   | low      | None of resources is be        |
|    |                                | Resource                       |                                |                       |          | limited.                       |
|    |                                |                                |                                |                       |          |                                |
+----+--------------------------------+--------------------------------+--------------------------------+-----------------------+----------+--------------------------------+
|  2 | Name: vulntest2 | Namespace:   | sidecar name: vulntest2 |      | CAP_SYS_ADMIN                  | capabilities.add      | critical | There has a potential          |
|    | default | Status: Running |    | capabilities                   |                                |                       |          | container escape in privileged |
|    | Node Name: docker-desktop      |                                |                                |                       |          | module.                        |
+    +                                +--------------------------------+--------------------------------+-----------------------+----------+--------------------------------+
|    |                                | sidecar name: vulntest2 |      | true                           | kube-api-access-lcvh8 | critical | Mount service account          |
|    |                                | automountServiceAccountToken   |                                |                       |          | and key permission are         |
|    |                                |                                |                                |                       |          | given, which will cause a      |
|    |                                |                                |                                |                       |          | potential container escape.    |
|    |                                |                                |                                |                       |          | Reference clsuterRolebind:     |
|    |                                |                                |                                |                       |          | vuln-clusterrolebinding |      |
|    |                                |                                |                                |                       |          | roleBinding: vuln-rolebinding  |
+    +                                +--------------------------------+--------------------------------+-----------------------+----------+--------------------------------+
|    |                                | sidecar name: vulntest2 |      | cpu                            | Pod                   | low      | CPU usage is not limited.      |
|    |                                | Resource                       |                                |                       |          |                                |
|    |                                |                                |                                |                       |          |                                |
+----+--------------------------------+--------------------------------+--------------------------------+-----------------------+----------+--------------------------------+

Configures:
+----+-----------------------------+--------------------------------+--------------------------------------------------------+----------+--------------------------------+
| ID |            TYPEL            |             PARAM              |                         VALUE                          | SEVERITY |          DESCRIPTION           |
+----+-----------------------------+--------------------------------+--------------------------------------------------------+----------+--------------------------------+
|  1 | K8s version less than v1.24 | kernel version                 | 5.10.104-linuxkit                                      | critical | Kernel version is suffering    |
|    |                             |                                |                                                        |          | the CVE-2022-0185 with         |
|    |                             |                                |                                                        |          | CAP_SYS_ADMIN vulnerablility,  |
|    |                             |                                |                                                        |          | has a potential container      |
|    |                             |                                |                                                        |          | escape.                        |
+----+-----------------------------+--------------------------------+--------------------------------------------------------+----------+--------------------------------+
|  2 | ConfigMap                   | ConfigMap Name: vulnconfig     | db.string:mysql+pymysql://dbapp:Password123@db:3306/db | high     | ConfigMap has found weak       |
|    |                             | Namespace: default             |                                                        |          | password: 'Password123'.       |
+----+-----------------------------+--------------------------------+--------------------------------------------------------+----------+--------------------------------+
|  3 | Secret                      | Secret Name: vulnsecret-auth   | password:Password123                                   | high     | Secret has found weak          |
|    |                             | Namespace: default             |                                                        |          | password: 'Password123'.       |
+----+-----------------------------+--------------------------------+--------------------------------------------------------+----------+--------------------------------+
|  4 | ClusterRoleBinding          | binding name:                  | verbs: get, watch, list,                               | high     | Key permissions with key       |
|    |                             | vuln-clusterrolebinding |      | create, update | resources:                            |          | resources given to the         |
|    |                             | rolename: vuln-clusterrole |   | pods, services                                         |          | default service account, which |
|    |                             | kind: ClusterRole | subject    |                                                        |          | will cause a potential data    |
|    |                             | kind: Group | subject name:    |                                                        |          | leakage.                       |
|    |                             | system:serviceaccounts:vuln |  |                                                        |          |                                |
|    |                             | namespace: vuln                |                                                        |          |                                |
+----+-----------------------------+--------------------------------+--------------------------------------------------------+----------+--------------------------------+
|  5 | RoleBinding                 | binding name: vuln-rolebinding | verbs: get, watch, list,                               | high     | Key permissions with key       |
|    |                             | | rolename: vuln-role | role   | create, update | resources:                            |          | resources given to the         |
|    |                             | kind: Role | subject kind:     | pods, services                                         |          | default service account, which |
|    |                             | ServiceAccount | subject name: |                                                        |          | will cause a potential data    |
|    |                             | default | namespace: default   |                                                        |          | leakage.                       |
+----+-----------------------------+--------------------------------+--------------------------------------------------------+----------+--------------------------------+
|  6 | ClusterRoleBinding          | binding name:                  | verbs: get, watch, list,                               | warning  | Key permission are given       |
|    |                             | vuln-clusterrolebinding2 |     | create, update | resources:                            |          | to unknown user 'testUser',    |
|    |                             | rolename: vuln-clusterrole |   | pods, services                                         |          | printing it for checking.      |
|    |                             | subject kind: User | subject   |                                                        |          |                                |
|    |                             | name: testUser | namespace:    |                                                        |          |                                |
|    |                             | all                            |                                                        |          |                                |
+----+-----------------------------+--------------------------------+--------------------------------------------------------+----------+--------------------------------+

修复

  • 修复版本对比中由于非数字字符串带来的对比失败
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原文链接:https://www.oschina.net/news/225074/vesta-1-0-3-released

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