Vulnerability Details : CVE-2019-10157
It was found that Keycloak's Node.js adapter before version 4.8.3 did not properly verify the web token received from the server in its backchannel logout . An attacker with local access could use this to construct a malicious web token setting an NBF parameter that could prevent user access indefinitely.
Vulnerability category: BypassGain privilege
Products affected by CVE-2019-10157
- cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:single_sign-on:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-10157
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-10157
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST | |
|
4.7
|
MEDIUM | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.0
|
3.6
|
Red Hat, Inc. |
CWE ids for CVE-2019-10157
-
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by: nvd@nist.gov (Primary)
-
The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.Assigned by: secalert@redhat.com (Secondary)
References for CVE-2019-10157
-
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10157
1702953 – (CVE-2019-10157) CVE-2019-10157 keycloak: Node.js adapter internal NBF can be manipulated leading to DoS.Issue Tracking;Vendor Advisory
-
http://www.securityfocus.com/bid/108734
keycloak CVE-2019-10157 Local Denial of Service VulnerabilityThird Party Advisory;VDB Entry
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