Security readout for executives and security teams
Plain-English summary
This CVE affects B&R Industrial Automation APROL versions before R4.2 V7.08. It may let an attacker bypass authentication and access historical data from AprolSqlServer. The public record does not provide CVSS scoring, CWE classification, or evidence of active exploitation.
Executive priority
Prioritize review if APROL supports industrial operations or stores sensitive process history. Business urgency depends on deployment exposure because the public record lacks severity scoring and exploitation evidence.
Technical view
CVE-2019-19878 is an authentication-bypass issue in APROL before R4.2 V7.08 affecting access control around AprolSqlServer historical data. The CVE states it is distinct from CVE-2019-16358. Public details are sparse, with no exploit method, affected CPEs, or scored severity provided.
Likely exposure
Organizations using B&R APROL versions earlier than R4.2 V7.08 may be exposed, especially where AprolSqlServer is reachable from untrusted or broadly accessible networks.
Exploitation context
The CVE record describes unauthorized access to historical data by bypassing authentication. It is not listed in KEV, and the supplied sources do not show active exploitation or public weaponization.
Researcher notes
Do not assume affected CPEs or exploitability beyond the CVE description. Key gaps are missing CVSS, CWE, exact affected builds, technical root cause, and explicit remediation language beyond the version boundary.
Mitigation direction
- Inventory APROL deployments and identify versions older than R4.2 V7.08.
- Review B&R release notes and vendor guidance for the appropriate update path.
- Restrict network access to AprolSqlServer and related APROL services.
- Limit access to OT management networks to authorized administrative hosts.
- Monitor for unusual access to historical process data.
Validation and detection
- Confirm APROL version and compare it with the R4.2 V7.08 boundary.
- Review APROL and database access logs for unexpected historical data access.
- Verify AprolSqlServer is not reachable from untrusted network segments.
- Check whether vendor-recommended updates or controls have been 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
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CVE-2019-19878 mapping review
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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.