HOMEVULNERABILITIESCVE-2017-12161
HIGH

CVE-2017-12161

CWE-602Published: February 21, 2018· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official Description

It was found that keycloak before 3.4.2 final would permit misuse of a client-side /etc/hosts entry to spoof a URL in a password reset request. An attacker could use this flaw to craft a malicious password reset request and gain a valid reset token, leading to information disclosure or further attacks.

NVD Source

Technical Analysis

CVE-2017-12161 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

keycloak1 product(s)
keycloak
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/keycloak/keycloak-documentation/pull/268/commits/a2b58aadee42af2c375b72e86dffc2cf23cc3770
PATCHhttps://github.com/keycloak/keycloak-documentation/pull/268/commits/a2b58aadee42af2c375b72e86dffc2cf23cc3770
ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=1484564
ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=1484564

All References (4)

→
https://bugzilla.redhat.com/show_bug.cgi?id=1484564Issue Tracking · Third Party Advisory
→
https://github.com/keycloak/keycloak-documentation/pull/268/commits/a2b58aadee42af2c375b72e86dffc2cf23cc3770Patch · Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=1484564Issue Tracking · Third Party Advisory
→
https://github.com/keycloak/keycloak-documentation/pull/268/commits/a2b58aadee42af2c375b72e86dffc2cf23cc3770Patch · Third Party Advisory

Quick Facts

CVE IDCVE-2017-12161
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-602
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 21, 2018

Related CVEs (CWE-602)

CVE-2026-42160
10.0
CVE-2025-33025
9.9
CVE-2025-32469
9.9
CVE-2025-33024
9.9
CVE-2025-28168
9.8
CVE-2023-0750
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-12161 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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