中危 在命令中使用的特殊元素转义处理不恰当（命令注入）
CVE编号
CVE-2023-22496利用情况
暂无补丁情况
官方补丁披露时间
2023-01-14漏洞描述
Netdata is an open source option for real-time infrastructure monitoring and troubleshooting. An attacker with the ability to establish a streaming connection can execute arbitrary commands on the targeted Netdata agent. When an alert is triggered, the function `health_alarm_execute` is called. This function performs different checks and then enqueues a command by calling `spawn_enq_cmd`. This command is populated with several arguments that are not sanitized. One of them is the `registry_hostname` of the node for which the alert is raised. By providing a specially crafted `registry_hostname` as part of the health data that is streamed to a Netdata (parent) agent, an attacker can execute arbitrary commands at the remote host as a side-effect of the raised alert. Note that the commands are executed as the user running the Netdata Agent. This user is usually named `netdata`. The ability to run arbitrary commands may allow an attacker to escalate privileges by escalating other vulnerabilities in the system, as that user. The problem has been fixed in: Netdata agent v1.37 (stable) and Netdata agent v1.36.0-409 (nightly). As a workaround, streaming is not enabled by default. If you have previously enabled this, it can be disabled. Limiting access to the port on the recipient Agent to trusted child connections may mitigate the impact of this vulnerability.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/netdata/netdata/security/advisories/GHSA-xg38-3vmw-2978 |
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 | netdata | netdata | * | Up to (excluding) 1.37.0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | netdata | * | Up to (including) 1.12.0-1+deb10u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | netdata | * | Up to (including) 1.29.3-4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | netdata | * | Up to (excluding) 1.37.0-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | netdata | * | Up to (excluding) 1.37.0-1 | |||||
- 攻击路径 远程
- 攻击复杂度 容易
- 权限要求 无需权限
- 影响范围 全局影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 数据泄露
- 数据完整性 无影响
- 服务器危害 无影响
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-20 | 输入验证不恰当 |
| CWE-77 | 在命令中使用的特殊元素转义处理不恰当（命令注入） |
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