CVE-2020-26877— ApiFest OAuth 2.0 Server 输入验证错误漏洞

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ApiFest OAuth 2.0 Server 0.3.1 does not validate the redirect URI in accordance with RFC 6749 and is susceptible to an open redirector attack. Specifically, it directly sends an authorization code to the redirect URI submitted with the authorization request, without checking whether the redirect URI is registered by the client who initiated the request. This allows an attacker to craft a request with a manipulated redirect URI (redirect_uri parameter), which is under the attacker's control, and consequently obtain the leaked authorization code when the server redirects the client to the manipulated redirect URI with an authorization code. NOTE: this is similar to CVE-2019-3778.

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ApiFest OAuth 2.0 Server 输入验证错误漏洞

ApiFest OAuth 2.0 Server是ApiFest开源的一种 OAuth 2.0 协议的 ApiFest OAuth 2.0 Server Java 实现。 ApiFest OAuth 2.0 Server 0.3.1 版本存在安全漏洞，该漏洞源于不根据 RFC 6749 验证重定向 URI。攻击者利用该漏洞可使用受攻击者控制的被操纵的重定向 URI（redirect_uri 参数）来制作请求，从而在服务器将客户端重定向到带有授权码的被操纵的重定向 URI 时获得泄露的授权码。

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