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  5. CVE-2020-1727

CVE-2020-1727: Improper Input Validation

June 22, 2020 (updated June 29, 2020)

A vulnerability was found in Keycloak where every Authorization URL that points to an IDP server lacks proper input validation. This flaw allows a malicious to craft deep links that introduce further attack scenarios on affected clients.

References

  • bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1727
  • nvd.nist.gov/vuln/detail/CVE-2020-1727

Code Behaviors & Features

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Affected versions

All versions before 9.0.2

Fixed versions

  • 9.0.2

Solution

Upgrade to version 9.0.2 or above.

Impact 5.4 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-20: Improper Input Validation

Source file

maven/org.keycloak/keycloak-services/CVE-2020-1727.yml

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