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CVE-2017-11428— Multiple SAML libraries may allow authentication bypass via incorrect XML canonicalization and DOM traversal

Quick assessment

Affected
OneLogin Ruby-SAML
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OneLogin ruby-saml是美国OneLogin公司的一款基于Ruby的、用于单点登录（SSO）服务的SAML（安全断言标记语言）库。 OneLogin ruby-saml中存在身份验证绕过漏洞。攻击者可利用该漏洞绕过身份验证机制并执行未授权的操作。以下版本受到影响：OneLogin ruby-saml 1.2版本，1.1版本，1.0版本，0.7.3版本，0.5版本，0.4版本，0.3版本，0.2版本，0.9版本，0.8版本。

AI Predicted 9.8 Difficulty: Easy EPSS 2.46% · P84
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I. Basic Information for CVE-2017-11428

Vulnerability Information
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Vulnerability Title
Multiple SAML libraries may allow authentication bypass via incorrect XML canonicalization and DOM traversal
Source: CVE Program / CVE List V5
Vulnerability Description
OneLogin Ruby-SAML 1.6.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
OneLogin ruby-saml 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OneLogin ruby-saml是美国OneLogin公司的一款基于Ruby的、用于单点登录（SSO）服务的SAML（安全断言标记语言）库。 OneLogin ruby-saml中存在身份验证绕过漏洞。攻击者可利用该漏洞绕过身份验证机制并执行未授权的操作。以下版本受到影响：OneLogin ruby-saml 1.2版本，1.1版本，1.0版本，0.7.3版本，0.5版本，0.4版本，0.3版本，0.2版本，0.9版本，0.8版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OneLogin Ruby-SAML unspecified ~ 1.6.0 -

II. Public POCs for CVE-2017-11428

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III. Intelligence Information for CVE-2017-11428

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Vendor Advisories for CVE-2017-11428 (1)

Security Blog Posts for CVE-2017-11428 (1)

IV. Related Vulnerabilities

Same product: Ruby-SAML
Same vendor: OneLogin
Same weakness: CWE-287

V. Comments for CVE-2017-11428

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