Home/CVE/It was found that Keycloak would accept a HOST header URL in the admin console and use it to determine web resource loca
CVE

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 loca

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.

MEDIUM · CVSS 5.4 EPSS 0.00668
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0

Affected Products & Versions

2
keycloakall versions

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Maven org.keycloak:keycloak-parent MODERATE fixed in 3.4.0

Scoring & Timeline

5.4
MEDIUM · CVSS v3.0 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Oct 2017 · 05:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Vendor Advisories

3
rhsaRHSA-2017:2904Moderate
rhsaRHSA-2017:2905Moderate
rhsaRHSA-2017:2906Moderate
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securityfocus.com/bid/101618Third Party AdvisoryVDB Entry
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