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GitHub Enterprise SAML Authentication Bypass (CVE-2024-4985 / CVE-2024-9487)

Summary

Introduction In light of the recent Ruby-SAML bypass discovered in GitLab, we set out to examine the SAML implementation within GitHub Enterprise. During our research, we identified a significant vulnerability that enabled bypassing GitHub’s SAML authentication when encrypted assertions were in use. This blog post will provide an in-depth look at GitHub Enterprise’s SAML implementation and analyze the specific code issue that permitted this bypass. Although we uncovered this vulnerability inde
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