Vulnerability Details : CVE-2017-2646
It was found that when Keycloak before 2.5.5 receives a Logout request with a Extensions in the middle of the request, the SAMLSloRequestParser.parse() method ends in a infinite loop. An attacker could use this flaw to conduct denial of service attacks.
Vulnerability category: Denial of service
Products affected by CVE-2017-2646
- cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-2646
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 39 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-2646
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
Red Hat, Inc. |
CWE ids for CVE-2017-2646
-
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2017-2646
-
http://www.securityfocus.com/bid/96882
keycloak CVE-2017-2646 Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2646
1431230 – (CVE-2017-2646) CVE-2017-2646 keycloak: DoS via SAML requestIssue Tracking;Third Party Advisory
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