id: GO-2021-0060
modules:
    - module: github.com/russellhaering/gosaml2
      versions:
        - fixed: 0.6.0
      vulnerable_at: 0.5.0
      packages:
        - package: github.com/russellhaering/gosaml2
          symbols:
            - parseResponse
          derived_symbols:
            - SAMLServiceProvider.RetrieveAssertionInfo
            - SAMLServiceProvider.ValidateEncodedLogoutRequestPOST
            - SAMLServiceProvider.ValidateEncodedLogoutResponsePOST
            - SAMLServiceProvider.ValidateEncodedResponse
summary: Authentication bypass in github.com/russellhaering/gosaml2
description: |-
    Due to the behavior of encoding/xml, a crafted XML document may cause XML
    Digital Signature validation to be entirely bypassed, causing an unsigned
    document to appear signed.
published: 2021-04-14T20:04:52Z
cves:
    - CVE-2020-29509
ghsas:
    - GHSA-xhqq-x44f-9fgg
credits:
    - Juho Nurminen
references:
    - fix: https://github.com/russellhaering/gosaml2/commit/42606dafba60c58c458f14f75c4c230459672ab9