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CVE Record

CVE-2017-8444: The client-forwarder in Elastic Cloud Enterprise versions prior to 1.0.2 do not properly encrypt traffic to...

The client-forwarder in Elastic Cloud Enterprise versions prior to 1.0.2 do not properly encrypt traffic to ZooKeeper. If an attacker is able to man in the middle (MITM) the traffic between the client-forwarder and ZooKeeper they could potentially obtain sensitive data.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Elastic Cloud Enterprise 1.0.0 and 1.0.1 had a weakness in how the client-forwarder protected traffic sent to ZooKeeper. If someone could intercept that internal network traffic, they could potentially read sensitive data. This mainly matters for organizations still running those early ECE releases or preserving old deployments.

Executive priority

Treat this as a legacy exposure cleanup item with confidentiality impact. It deserves prompt attention if affected ECE versions remain in production, but the available sources do not support claims of broad exploitation or emergency internet-wide risk.

Technical view

CVE-2017-8444 is a CWE-319 cleartext or insufficiently protected transmission issue in Elastic Cloud Enterprise before 1.0.2. The client-forwarder did not properly encrypt traffic to ZooKeeper, creating a confidentiality risk if an attacker could conduct a man-in-the-middle attack on that specific path.

Likely exposure

Exposure appears limited to Elastic Cloud Enterprise versions 1.0.0 and 1.0.1. The source bundle does not identify other Elastic products as affected.

Exploitation context

The cited CVE text requires attacker ability to intercept traffic between the client-forwarder and ZooKeeper. CISA KEV status is false in the supplied bundle, and no cited source states active exploitation.

Researcher notes

Public detail is sparse: no CVSS vector is supplied, and the source bundle gives no packet-level behavior or exploit indicators. Keep analysis scoped to ECE 1.0.0 and 1.0.1, client-forwarder to ZooKeeper traffic, and MITM-dependent data exposure.

Mitigation direction

  • Upgrade Elastic Cloud Enterprise 1.0.0 or 1.0.1 to version 1.0.2 or later.
  • Review Elastic's 1.0.2 security update for any deployment-specific instructions.
  • Restrict network access to ZooKeeper and client-forwarder communication paths.
  • Check current Elastic guidance if legacy ECE components remain in use.

Validation and detection

  • Inventory Elastic Cloud Enterprise deployments and confirm exact versions.
  • Verify whether any ECE 1.0.0 or 1.0.1 systems remain active.
  • Review network segmentation around ZooKeeper and client-forwarder traffic.
  • Confirm upgrade evidence or decommissioning for affected deployments.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-319: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2017-8444 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
ElasticElastic Cloud Enterprise1.0.0 and 1.0.1Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-319 · source CWE mapping

Cleartext Transmission of Sensitive Information

Cleartext Transmission of Sensitive Information represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.