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cve[email protected]CVE-2020-1727
HistoryJun 22, 2020 - 7:15 p.m.

CVE-2020-1727

2020-06-2219:15:10
CWE-20
web.nvd.nist.gov
48
vulnerability
keycloak
cve-2020-1727
authorization
idp server
input validation
attack scenario
nvd

6.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

5.2 Medium

AI Score

Confidence

High

5.5 Medium

CVSS2

Access Vector

Access Complexity

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:S/C:P/I:P/A:N

0.001 Low

EPSS

Percentile

22.7%

A vulnerability was found in Keycloak before 9.0.2, where every Authorization URL that points to an IDP server lacks proper input validation as it allows a wide range of characters. This flaw allows a malicious to craft deep links that introduce further attack scenarios on affected clients.

Affected configurations

Vulners
NVD
Node
redhatkeycloakRange9.0.2
CPENameOperatorVersion
redhat:keycloakredhat keycloaklt9.0.2

CNA Affected

[
  {
    "product": "keycloak",
    "vendor": "[UNKNOWN]",
    "versions": [
      {
        "status": "affected",
        "version": "Versions before 9.0.2"
      }
    ]
  }
]

6.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

5.2 Medium

AI Score

Confidence

High

5.5 Medium

CVSS2

Access Vector

Access Complexity

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:S/C:P/I:P/A:N

0.001 Low

EPSS

Percentile

22.7%