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RedhatCVE-2018-10912

HistoryJul 23, 2018 - 10:29 p.m.

CVE-2018-10912

2018-07-2322:29:00

CWE-835

redhat

web.nvd.nist.gov

cve-2018-10912

keycloak

session replacement

dos

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

4.9

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

4.8

Confidence

High

EPSS

0.001

Percentile

37.9%

JSON

keycloak before version 4.0.0.final is vulnerable to a infinite loop in session replacement. A Keycloak cluster with multiple nodes could mishandle an expired session replacement and lead to an infinite loop. A malicious authenticated user could use this flaw to achieve Denial of Service on the server.

Affected configurations

Nvd

Vulners

Node

redhatkeycloakRange<4.0.0

Node

redhatsingle_sign-onMatch7.2

VendorProductVersionCPE
redhatkeycloak*cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
redhatsingle_sign-on7.2cpe:2.3:a:redhat:single_sign-on:7.2:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
redhat	keycloak	*	cpe:2.3:a:redhat:keycloak::::::::
redhat	single_sign-on	7.2	cpe:2.3:a:redhat:single_sign-on:7.2:::::::*

CNA Affected

[
  {
    "product": "keycloak",
    "vendor": "[UNKNOWN]",
    "versions": [
      {
        "status": "affected",
        "version": "Keycloak 4.0.0.Final"
      }
    ]
  }
]

References

access.redhat.com/errata/RHSA-2018:2428

access.redhat.com/errata/RHSA-2019:0877

bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10912

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

4.9

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

4.8

Confidence

High

EPSS

0.001

Percentile

37.9%

JSON

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