CVE-2021-32637— Github authelia 授权问题漏洞

Authentication bypassed with malformed request URI

Authelia is a a single sign-on multi-factor portal for web apps. This affects uses who are using nginx ngx_http_auth_request_module with Authelia, it allows a malicious individual who crafts a malformed HTTP request to bypass the authentication mechanism. It additionally could theoretically affect other proxy servers, but all of the ones we officially support except nginx do not allow malformed URI paths. The problem is rectified entirely in v4.29.3. As this patch is relatively straightforward we can back port this to any version upon request. Alternatively we are supplying a git patch to 4.25.1 which should be relatively straightforward to apply to any version, the git patches for specific versions can be found in the references. The most relevant workaround is upgrading. You can also add a block which fails requests that contains a malformed URI in the internal location block.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

认证机制不恰当

Github authelia 授权问题漏洞

Github authelia是美国Github公司的一个应用软件。一个开源身份验证和授权服务器，可通过Web门户为应用程序提供2要素身份验证和单点登录（SSO）。 Authelia 4.29.3之前版本存在授权问题漏洞，该漏洞允许恶意的个人伪造一个畸形的http请求来绕过认证机制。

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