openpolicyagent gatekeeper 对异常条件的处理不恰当
CVE编号
CVE-2021-43979利用情况
暂无补丁情况
N/A披露时间
2021-11-18漏洞描述
** DISPUTED ** Styra Open Policy Agent (OPA) Gatekeeper through 3.7.0 mishandles concurrency, sometimes resulting in incorrect access control. The data replication mechanism allows policies to access the Kubernetes cluster state. During data replication, OPA/Gatekeeper does not wait for the replication to finish before processing a request, which might cause inconsistencies between the replicated resources in OPA/Gatekeeper and the resources actually present in the cluster. Inconsistency can later be reflected in a policy bypass. NOTE: the vendor disagrees that this is a vulnerability, because Kubernetes states are only eventually consistent.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
参考链接 |
|
|---|---|
| https://github.com/hkerma/opa-gatekeeper-concurrency-issue | |
| https://github.com/open-policy-agent/gatekeeper/releases |
受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 应用 | openpolicyagent | gatekeeper | * | Up to (including) 3.7.0 | |||||
- 攻击路径 网络
- 攻击复杂度 低
- 权限要求 无
- 影响范围 未更改
- 用户交互 无
- 可用性 无
- 保密性 无
- 完整性 低
| CWE-ID | 漏洞类型 |
| CWE-670 | 控制流实现总是不正确 |
| CWE-755 | 对异常条件的处理不恰当 |
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