漏洞信息
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Vulnerability Title
SimpleSAMLphp SAML2: Possible DoS via XPath Transform
Vulnerability Description
The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. In 4.19.2 and 4.20.2, the library permits attacker-controlled XPath transforms while processing XML signatures in specially crafted SAML messages. XPath evaluation can consume uncontrolled processing resources, allowing a remote unauthenticated attacker to deny service to any entity relying on SimpleSAMLphp or directly on the SAML2 library. The mitigation limits the number of transforms, permits only transform algorithms identified by the SAML 2.0 Core specification, and specifically rejects XPath transforms. This issue is fixed in versions 4.19.3 and 4.20.3.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Vulnerability Title
SimpleSAMLphp saml2 资源管理错误漏洞
Vulnerability Description
SimpleSAMLphp saml2是SimpleSAMLphp组织开源的一个身份认证协议实现库。 SimpleSAMLphp saml2 4.19.2版本和4.20.2版本存在资源管理错误漏洞,该漏洞源于处理特制SAML消息中的XML签名时允许攻击者控制的XPath转换,可能允许远程未认证攻击者消耗不受控制的处理资源,从而造成拒绝服务。
CVSS Information
N/A
Vulnerability Type
N/A