LiveActive security incident?Get immediate response
CVE Record

CVE-2017-17691: Homeputer CL Studio fur HomeMatic 4.0 Rel 160808 and earlier uses cleartext to exchange the username and pa...

Homeputer CL Studio fur HomeMatic 4.0 Rel 160808 and earlier uses cleartext to exchange the username and password between server and client instances, which allows remote attackers to obtain sensitive information via a man in the middle attack.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Homeputer CL Studio for HomeMatic sent usernames and passwords without encryption between server and client systems. Anyone able to intercept that network traffic could steal credentials. Business urgency depends on whether this legacy software is still deployed and whether its traffic crosses shared, remote, or untrusted networks.

Executive priority

Treat this as a targeted legacy exposure issue, not a broad emergency. Prioritize quickly if the software is internet-adjacent, used over shared networks, or controls important automation functions.

Technical view

CVE-2017-17691 affects Homeputer CL Studio fur HomeMatic 4.0 Rel 160808 and earlier. The reported flaw is cleartext credential exchange between server and client instances, enabling remote attackers in a man-in-the-middle position to obtain sensitive information.

Likely exposure

Exposure is limited to environments running the identified Homeputer CL Studio for HomeMatic versions. Risk is higher where server-client communication traverses Wi-Fi, VPN edges, remote links, shared LANs, or any path where interception is plausible.

Exploitation context

The CVE source describes man-in-the-middle credential theft as the attack scenario. The bundle does not include CVSS, KEV listing, exploit confirmation, or vendor remediation details. Active exploitation should not be assumed from the provided evidence.

Researcher notes

The provided record is sparse: no CVSS, CWE, CPE, affected vendor field, patch reference, or exploitation evidence is included. The Compass advisory is the key public reference named in the CVE bundle.

Mitigation direction

  • Inventory Homeputer CL Studio for HomeMatic deployments and identify versions at or before 4.0 Rel 160808.
  • Check vendor or maintainer guidance for fixed versions or supported configuration changes.
  • Keep server-client traffic off public, shared, or untrusted networks until remediation is confirmed.
  • Restrict access to Homeputer CL server and client communication paths to trusted hosts only.
  • Rotate exposed credentials after remediation if cleartext traffic may have crossed untrusted networks.

Validation and detection

  • Confirm whether Homeputer CL Studio for HomeMatic is deployed in the environment.
  • Record installed versions and compare them with 4.0 Rel 160808 and earlier.
  • Map server-client communication paths and identify any untrusted or interceptable network segments.
  • Verify through approved defensive testing whether authentication traffic is protected from cleartext exposure.
  • Review logs and account activity for suspicious access using potentially exposed credentials.
Prepared
Confidence
medium
Sources
3

Public sources used

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.

description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2017-17691 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.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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