Security readout for executives and security teams
Plain-English summary
CVE-2019-19873 affects B&R Industrial Automation APROL versions before R4.2 V7.08. The reported issue lets an attacker bypass authentication and obtain information from the AprolSqlServer DBMS. Public scoring and technical detail are limited, so urgency depends on whether affected APROL systems exist and how reachable they are.
Executive priority
Make this an asset-confirmation and upgrade-planning item for any environment using B&R APROL. Business urgency is higher in industrial operations where DBMS information exposure could reveal process, configuration, or operational data.
Technical view
The CVE describes an authentication bypass leading to information disclosure from the AprolSqlServer DBMS in APROL before R4.2 V7.08. It is explicitly different from CVE-2019-16356 and CVE-2019-9983. The source bundle provides no CVSS vector, CWE, exploit details, or confirmed attack activity.
Likely exposure
Exposure is likely limited to organizations running B&R Industrial Automation APROL before R4.2 V7.08. Risk increases if APROL or AprolSqlServer components are reachable by untrusted users or networks. The provided sources do not identify specific deployment paths or internet-exposed services.
Exploitation context
The source bundle does not show CISA KEV listing or other evidence of active exploitation. It only states that authentication can be bypassed to get information from the DBMS. Treat exploitability as plausible but insufficiently characterized from public data.
Researcher notes
Public detail is sparse: no CVSS, CWE, proof-of-concept, affected CPEs, or detailed advisory text is included in the bundle. Avoid assuming affected components beyond APROL before R4.2 V7.08 and the AprolSqlServer DBMS mentioned in the CVE description.
Mitigation direction
- Inventory APROL deployments and identify versions before R4.2 V7.08.
- Review B&R release notes and vendor guidance for upgrade direction.
- Prioritize vendor-supported upgrade to R4.2 V7.08 or later where applicable.
- Restrict APROL and AprolSqlServer access to trusted administrative networks.
- Monitor related system and database logs for unauthorized access indicators.
Validation and detection
- Confirm whether B&R APROL is present in OT or engineering environments.
- Record exact APROL release and compare it with R4.2 V7.08.
- Map which users and network segments can reach AprolSqlServer services.
- Check vendor release notes for remediation applicability to your build.
- Review access logs for unexplained database or application access attempts.
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.
CVE-2019-19873 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://www.br-automation.com/downloads_br_productcatalogue/BRP44400000000000000585952/APROL_R42_A1_ReleaseNotes_001.pdfCVE 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.