漏洞信息
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Vulnerability Title
SAML Single Sign On <= 5.4.6 - Unauthenticated Authentication Bypass via X.509 Certificate Poisoning
Vulnerability Description
The SAML Single Sign On – SSO Login plugin for WordPress is vulnerable to Authentication Bypass in versions up to, and including, 5.4.6. This is due to the mo_saml_login_validate() ACS handler persisting the X.509 certificate extracted from an incoming SAMLResponse into the mo_saml_required_certificate option before the signature-validation verdict is enforced, because mo_saml_find_certificate() returns false on a fingerprint mismatch rather than halting execution. This makes it possible for unauthenticated attackers to overwrite the plugin's stored IdP signing certificate with an attacker-controlled value, and subsequently forge SAML assertions for any WordPress account — including administrators — to obtain a fully privileged session. Note: The exploit requires the administrator to perform a repair after receiving the test_config_error_wpsamlerr004 error message during the test configuration.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Vulnerability Type
认证机制不恰当
Vulnerability Title
WordPress SAML Single Sign On 授权问题漏洞
Vulnerability Description
WordPress SAML Single Sign On是WordPress基金会开源的一款基于SAML协议的单点登录身份认证模块。 WordPress SAML Single Sign On 5.4.6及之前版本存在授权问题漏洞,该漏洞源于mo_saml_login_validate() ACS处理程序在签名验证前将传入SAMLResponse中的X.509证书持久化到mo_saml_required_certificate选项,且mo_saml_find_certificate()在指纹不匹配时返回
CVSS Information
N/A
Vulnerability Type
N/A