通过 git repo provider 实现远程代码执行

此 RCE 漏洞允许攻击者在 BinderHub 环境中执行任意代码。攻击者可能利用此漏洞泄露敏感凭据，例如 JupyterHub API 令牌和 Kubernetes 服务帐户，进而访问和操控用户创建的 Pod。在某些 Kubernetes 配置下，攻击者甚至可能升级到主机环境。攻击者可以利用这些权限来窃取数据、破坏系统或进行进一步的攻击活动，对 BinderHub 部署的安全性构成严重威胁。

Organizations utilizing BinderHub for interactive computing environments, particularly those deploying it within Kubernetes clusters, are at significant risk. Shared hosting environments where BinderHub is deployed alongside other services are also vulnerable, as a compromise could impact multiple users. Users relying on BinderHub for sensitive data processing or image building are especially at risk.

• python / binderhub:

import requests

url = 'http://binderhub-url/hub/user'
headers = {'X-Requested-With': 'XMLHttpRequest'}

# Attempt to trigger the vulnerability with a crafted payload
response = requests.get(url, headers=headers)

if response.status_code == 200:
    print('Potential vulnerability detected. Review response content.')
else:
    print('No vulnerability detected.')

• linux / server:

journalctl -u binderhub -f | grep -i "error" # Monitor for errors related to input processing

1. 2021-08-30Disclosure

   disclosure

1. 已保留2021-08-16
2. 发布日期2021-08-30
3. 修改日期2026-03-13
4. EPSS 更新日期2026-04-02

为了缓解此漏洞，建议立即升级至 BinderHub 0.2.0 或更高版本。如果无法立即升级，可以考虑实施以下临时缓解措施：限制 BinderHub 部署的访问权限，确保 Kubernetes 服务帐户具有最小权限原则，并定期审查 BinderHub 部署的日志以检测可疑活动。此外，可以配置 Web 应用防火墙 (WAF) 或代理服务器来过滤恶意输入，并使用 Sigma 或 YARA 规则来检测潜在的攻击行为。