[CVE-2023-23612] Remove trimming of whitespace when extracting SAML backend roles #2381
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Description
OpenSearch uses JWTs to store role claims obtained from the Identity Provider (IdP) when the authentication backend is SAML or OpenID Connect. There is an issue in how those claims are processed from the JWTs where the leading and trailing whitespace is trimmed, allowing users to potentially claim roles they are not assigned to if any role matches the whitespace-stripped version of the roles they are a member of.
This pull request remove trimming of whitespace when extracting SAML backend roles.
Testing
New unit test has been added to verify the functionality
Check List
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