漏洞信息
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Vulnerability Title
FreeRDP: RDSTLS server authentication bypass: a credential-less Capabilities PDU is accepted at the auth step (fail-open `resultCode`)
Vulnerability Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.30.0, FreeRDP server-side RDSTLS in libfreerdp/core/rdstls.c accepts an attacker-supplied RDSTLS_TYPE_CAPABILITIES PDU while rdstls_server_authenticate is waiting for RDSTLS_TYPE_AUTHREQ, leaving resultCode at RDSTLS_RESULT_SUCCESS and allowing a remote unauthenticated client to bypass the RedirectionGuid, username, domain, or password checks. This issue is fixed in version 3.30.0.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Vulnerability Type
认证机制不恰当
Vulnerability Title
FreeRDP 授权问题漏洞
Vulnerability Description
FreeRDP是FreeRDP组织开源的一款远程桌面协议(RDP)的实现。 FreeRDP 3.30.0之前版本存在授权问题漏洞,该漏洞源于libfreerdp/core/rdstls.c中的服务器端RDSTLS在等待RDSTLS_TYPE_AUTHREQ时接受攻击者提供的RDSTLS_TYPE_CAPABILITIES PDU,使resultCode保持为RDSTLS_RESULT_SUCCESS,导致远程未认证客户端绕过RedirectionGuid、用户名、域名或密码检查。
CVSS Information
N/A
Vulnerability Type
N/A