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CVE Record

CVE-2017-12123: An exploitable clear text transmission of password vulnerability exists in the web server and telnet functi...

An exploitable clear text transmission of password vulnerability exists in the web server and telnet functionality of Moxa EDR-810 V4.1 build 17030317. An attacker can look at network traffic to get the admin password for the device. The attacker can then use the credentials to login as admin.

MediumCVSS 5.7Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2017-12123 affects Moxa EDR-810 V4.1 build 17030317. Admin passwords can be sent in clear text through web server and Telnet functionality, allowing someone who can observe relevant network traffic to capture credentials and log in as admin.

Executive priority

Treat as a targeted operational technology credential risk. It is not rated critical, but admin credential theft on a network security device can undermine monitoring, availability planning, and incident response confidence.

Technical view

The issue is clear text transmission of the admin password in the device management paths. CVSS 3.0 is 5.7 with adjacent-network access, low complexity, no privileges, user interaction required, and high confidentiality impact. No CWE, patch, or vendor mitigation is provided in the supplied bundle.

Likely exposure

Exposure is limited to organizations running Moxa EDR-810 V4.1 build 17030317, especially where management traffic crosses shared, untrusted, or poorly segmented networks. Devices isolated to trusted management networks have lower practical exposure.

Exploitation context

The source bundle does not show known active exploitation, and the CVE is not in KEV. Practical abuse requires the attacker to observe management traffic and capture an admin login session using the affected cleartext behavior.

Researcher notes

Evidence is specific but narrow: one affected Moxa EDR-810 build, cleartext password exposure, and no cited exploitation or fix details in the bundle. Validation should avoid assuming other Moxa products or versions are affected without vendor confirmation.

Mitigation direction

  • Check Moxa and Talos guidance for fixed firmware or official mitigations.
  • Restrict management access to trusted administrative networks only.
  • Avoid Telnet or unencrypted web management where secure alternatives are supported.
  • Rotate admin passwords after removing cleartext exposure.
  • Monitor for unexpected admin logins or management sessions.

Validation and detection

  • Inventory Moxa EDR-810 devices and firmware build numbers.
  • Confirm whether any device runs V4.1 build 17030317.
  • Review network segmentation around device management interfaces.
  • Verify management access is limited to trusted administrators.
  • Check logs for suspicious admin authentication activity.
Prepared
Confidence
high
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-2017-12123 mapping review

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

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.7 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.7CVSS 3.0MediumCVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N2.13.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.7Medium
CVSS 3.0 vector shape for CVE-2017-12123Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
TalosMoxaMoxa EDR-810 V4.1 build 17030317Listed
Weakness

CWE details

No CWE listed

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