Home/CVE/Red Hat Keycloak before version 2.5.1 has an implementation of HMAC verification for JWS tokens that uses a method that
CVE

CVE-2017-2585

Red Hat Keycloak before version 2.5.1 has an implementation of HMAC verification for JWS tokens that uses a method that

Red Hat Keycloak before version 2.5.1 has an implementation of HMAC verification for JWS tokens that uses a method that runs in non-constant time, potentially leaving the application vulnerable to timing attacks.

MEDIUM · CVSS 5.9 EPSS 0.00671
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
▤

Affected Products & Versions

2
redhat keycloak< 2.5.1
redhat single sign onall 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-core MODERATE fixed in 2.5.1
▣

Scoring & Timeline

5.9
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 NVD12 Mar 2018 · 03:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
⚑

Vendor Advisories

3
rhsaRHSA-2017:0873Moderate
rhsaRHSA-2017:0876Moderate
rhsaRHSA-2017:0872Moderate
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://rhn.redhat.com/errata/RHSA-2017-0876.htmlVendor Advisory
http://www.securityfocus.com/bid/97393Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038180Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1412376Issue Tracking
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