Security readout for executives and security teams
Plain-English summary
This flaw affects Rockwell Automation 1734-AENTR communication modules. The web interface may accept certain configuration-changing HTTP POST requests without proper authentication. An unauthenticated remote attacker could alter settings, creating operational integrity risk in industrial environments.
Executive priority
Treat as moderate priority overall, but raise urgency for exposed industrial networks. Unauthorized configuration changes can affect process reliability even without confidentiality loss or confirmed active exploitation.
Technical view
CVE-2020-14504 is an authentication/authorization weakness in the 1734-AENTR web interface. It affects specified Series B and Series C firmware ranges. CVSS 3.1 is 5.3, with network access, low complexity, no privileges, no user interaction, and low integrity impact.
Likely exposure
Exposure is limited to Rockwell Automation 1734-AENTR modules in the listed firmware ranges, especially where the web interface is reachable from enterprise, remote-access, or untrusted networks.
Exploitation context
The sources state remote unauthenticated crafted requests may modify configuration settings. The provided bundle does not show CISA KEV listing or any cited evidence of active exploitation.
Researcher notes
Evidence supports an unauthenticated HTTP POST authentication mishandling issue with integrity impact. The bundle does not include exploit details, observed exploitation, or explicit patch versions, so remediation should be tied to vendor advisory guidance.
Mitigation direction
- Inventory 1734-AENTR modules and identify affected series and firmware ranges.
- Review CISA and Rockwell guidance for corrected firmware or vendor-approved mitigations.
- Restrict access to the module web interface pending vendor-approved remediation.
- Prioritize remediation for devices reachable from non-control-system networks.
Validation and detection
- Confirm module model, series, and firmware version against the affected ranges.
- Verify whether the web interface is reachable from untrusted or routed networks.
- Review configuration history for unexpected or unauthorized changes.
- Track remediation status against official CISA and Rockwell advisory guidance.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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 lookupCWE-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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 lookupCVE-2020-14504 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-063-01CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Access Control
Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.