Medium severity · published Oct 26, 2017
CVE-2017-12158
It was found that Keycloak would accept a HOST header URL in the admin console and use it to determine web resource locations
5.4
CVSS
1%
EPSS
No
On KEV
Description
It was found that Keycloak would accept a HOST header URL in the admin console and use it to determine web resource locations. An attacker could use this flaw against an authenticated user to attain reflected XSS via a malicious server.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Keycloak · Keycloak
All versions, or not specified · source: NVD
SS
Single Sign ON · Redhat
7.0; 7.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-12158
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-12158
Third Party Advisory
http://www.securityfocus.com/bid/101618
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2904
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2905
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2906
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1489161
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