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  5. CVE-2020-27846

CVE-2020-27846: Misinterpretation of Input

December 21, 2020 (updated March 31, 2021)

A signature verification vulnerability exists in crewjam/saml. This flaw allows an attacker to bypass SAML Authentication. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

References

  • bugzilla.redhat.com/show_bug.cgi?id=1907670
  • grafana.com/blog/2020/12/17/grafana-6.7.5-7.2.3-and-7.3.6-released-with-important-security-fix-for-grafana-enterprise/
  • nvd.nist.gov/vuln/detail/CVE-2020-27846

Code Behaviors & Features

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Affected versions

All versions before 0.4.3

Fixed versions

  • v0.4.3

Solution

Upgrade to version 0.4.3 or above.

Impact 9.8 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-115: Misinterpretation of Input

Source file

go/github.com/crewjam/saml/CVE-2020-27846.yml

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