Security readout for executives and security teams
Plain-English summary
CVE-2021-38390 affects Delta Electronics DIAEnergie 1.7.5 and earlier. A remote unauthenticated attacker may abuse improper input validation in a web handler to manipulate database queries, with the CVE description stating possible code execution as NT SERVICE\MSSQLSERVER.
Executive priority
Treat this as high priority where DIAEnergie supports operational technology or energy management workflows. The concern is not just data access: the CVE description states possible code execution through unauthenticated database injection.
Technical view
The issue is CWE-89 blind SQL injection in /DataHandler/HandlerEnergyType.ashx through the user-controlled egyid parameter. The vulnerable code uses that input in an SQL query without proper validation. The source bundle does not provide CVSS scoring or detailed patch confirmation.
Likely exposure
Likely exposure is limited to organizations running Delta Electronics DIAEnergie 1.7.5 or earlier, especially where the DIAEnergie web application is reachable from untrusted networks. No other affected products are identified in the provided sources.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation evidence. The CVE description says exploitation is remote and unauthenticated, and may lead to arbitrary code execution in the SQL Server service context.
Researcher notes
Evidence is concise but serious: affected version range, endpoint, parameter, CWE, unauthenticated remote condition, and execution context are all stated. Missing evidence includes CVSS metrics, confirmed fixed version, exploit maturity, and detailed vendor remediation in the supplied bundle.
Mitigation direction
- Check Delta and CISA guidance for fixed versions or vendor-approved mitigations.
- Upgrade affected DIAEnergie deployments if vendor guidance identifies a supported fixed release.
- Restrict DIAEnergie access to trusted management networks only.
- Monitor database and web logs for suspicious HandlerEnergyType.ashx activity.
- Do not expose DIAEnergie management interfaces directly to the internet.
Validation and detection
- Inventory all Delta Electronics DIAEnergie deployments.
- Confirm whether each deployment is version 1.7.5 or earlier.
- Identify whether /DataHandler/HandlerEnergyType.ashx is reachable externally.
- Review logs for abnormal requests involving HandlerEnergyType.ashx or egyid.
- Document compensating controls around DIAEnergie network access.
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-89: Database access and collection lookup
Injection into data stores can inform collection, data access, and exfiltration detection reviews. 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-38390 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://us-cert.cisa.gov/ics/advisories/icsa-21-238-03CVE 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 Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.