9.1

CVSS Score

3.1

-

CVSS Score

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CVE-2022-41912

CVE-2022-41912: crewjam/saml vulnerable to signature bypass via multiple Assertion elements due to improper authentication

Impact

The crewjam/saml go library is vulnerable to an authentication bypass when processing SAML responses containing multiple Assertion elements.

Patches

This issue has been corrected in version 0.4.9.

Credit

This issue was reported by Felix Wilhelm from Google Project Zero.

(GitHub Advisory)

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CVE-2022-41912

CVE-2022-41912:

9.1

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
github.com/crewjam/saml	go	< 0.4.9	0.4.9

Technical Details

Vulnerability Intelligence
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Root Cause Analysis

The vulnerability stems from improper handling of multiple Assertion elements in SAML responses. The original implementation in these functions would accept responses if any assertion was properly signed, without validating all assertions. This allowed attackers to include both signed and unsigned assertions, with the service provider potentially accepting the unsigned ones. The commit adds validation loops for both EncryptedAssertion and Assertion elements, enforces signature requirements, and properly handles multiple assertions - indicating these were the vulnerable entry points. The test cases added in the commit specifically target multiple assertion handling in these functions.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

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WAF Protection Rules

WAF Rule

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Reasoning

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9.1

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Basic Information

Basic Information

Concerned about an active attack path?

CVE-2022-41912: crewjam/saml vulnerable to signature bypass via multiple Assertion elements due to improper authentication

Impact

Patches

Credit

CVE-2022-41912:

9.1

-

Basic Information

Basic Information

Is this CVE running in your environment?

Technical Details

Technical Details

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

Vulnerability IntelligenceMiggo AI

Unlock WAF rules for this CVE

WAF Protection Rules

WAF Rule

Reasoning

CVE-2022-41912: crewjam/saml vulnerable to signature bypass via multiple Assertion elements due to improper authentication

Impact

Patches

Credit

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

9.1

9.1

Basic Information

Basic Information

Technical Details

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
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