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[email protected]CVE-2020-1758

HistoryMay 15, 2020 - 7:15 p.m.

CVE-2020-1758

2020-05-1519:15:12

CWE-295

CWE-297

[email protected]

web.nvd.nist.gov

134

keycloak

cve-2020-1758

tls

hostname verification

smtp

security

vulnerability

nvd

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

5.2 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

48.0%

JSON

A flaw was found in Keycloak in versions before 10.0.0, where it does not perform the TLS hostname verification while sending emails using the SMTP server. This flaw allows an attacker to perform a man-in-the-middle (MITM) attack.

Affected configurations

Vulners

NVD

Node

redhatkeycloakRange≤10.0.0

VendorProductVersionCPE
redhatkeycloak*cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
redhat	keycloak	*	cpe:2.3:a:redhat:keycloak::::::::

CNA Affected

[
  {
    "product": "keycloak",
    "vendor": "Red Hat",
    "versions": [
      {
        "status": "affected",
        "version": "keycloak versions before 10.0.0"
      }
    ]
  }
]