Security readout for executives and security teams
Plain-English summary
Delta Electronics DIAEnergie 1.7.5 and earlier has a blind SQL injection issue in a web endpoint. A remote unauthenticated attacker could abuse unvalidated input to affect the database layer and, per the CVE description, execute arbitrary code as NT SERVICE\MSSQLSERVER.
Executive priority
Treat as urgent for any exposed or operationally important DIAEnergie deployment. Prioritize inventory, network restriction, and vendor guidance review before broader remediation planning.
Technical view
The vulnerable endpoint is /DataHandler/AM/AM_Handler.ashx. The user-controlled type parameter is not properly validated before use in an SQL query, creating CWE-89 blind SQL injection. The source bundle states unauthenticated remote exploitation may lead to arbitrary code execution in the MSSQLSERVER service context.
Likely exposure
Exposure is limited to organizations running Delta Electronics DIAEnergie version 1.7.5 or earlier, especially where the application is reachable from untrusted networks or poorly segmented operational environments.
Exploitation context
The source bundle does not show CISA KEV listing or other evidence of active exploitation. The risk remains serious because the described attack path is remote, unauthenticated, and impacts an operational energy management product.
Researcher notes
Evidence is limited to the CVE record and referenced CISA ICS advisory. No CVSS score, patch version, or active exploitation evidence is included in the provided bundle, so avoid claiming exploitation in the wild or a specific fixed release.
Mitigation direction
- Identify all Delta Electronics DIAEnergie deployments and versions.
- Restrict DIAEnergie access to trusted management networks only.
- Check Delta and CISA guidance for vendor-approved updates or mitigations.
- Monitor application and database logs for abnormal AM_Handler.ashx requests.
- Review service account privileges for MSSQLSERVER where operationally feasible.
Validation and detection
- Confirm whether DIAEnergie 1.7.5 or earlier is installed.
- Check whether /DataHandler/AM/AM_Handler.ashx is reachable from untrusted networks.
- Review asset inventories for exposed Delta DIAEnergie systems.
- Inspect logs for suspicious requests involving the type parameter.
- Document compensating controls if vendor remediation is not yet applied.
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-2021-38391 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.