Security readout for executives and security teams
Plain-English summary
B&R Industrial Automation APROL versions before R4.2 V7.08 contain a command-injection issue in a cluster script. Because that script is run through sudo, injected commands could execute with root privileges. This is most urgent where APROL supports production or safety-relevant industrial operations.
Executive priority
Treat as high priority for any APROL deployment tied to production operations. Root-level command execution can affect availability and integrity, but urgency should be driven by confirmed APROL version, user access paths, and operational criticality.
Technical view
CVE-2019-19875 affects B&R Industrial Automation APROL before R4.2 V7.08. The CVE describes arbitrary command injection using Python scripts through the AprolCluster script, which is invoked via sudo and executes as root. The record distinguishes it from CVE-2019-16364.
Likely exposure
Exposure is likely limited to environments running B&R APROL below R4.2 V7.08, especially systems where the AprolCluster sudo path is present and usable by operators, administrators, or automation accounts.
Exploitation context
The provided sources do not show CISA KEV listing, active exploitation, public exploit availability, or remote reachability. The root-through-sudo behavior makes successful abuse high impact, but practical exploitability depends on local APROL configuration and access.
Researcher notes
Source detail is sparse: no CVSS, CWE, exploit status, or affected CPEs are provided. Analysis should avoid assuming remote access. Focus validation on version boundary, sudo exposure, and whether APROL cluster tooling is reachable by non-root users.
Mitigation direction
- Identify all APROL installations and their exact release levels.
- Upgrade APROL systems below R4.2 V7.08 following vendor guidance.
- Restrict sudo access to APROL cluster maintenance scripts until remediated.
- Review vendor release notes before applying changes in production ICS environments.
- Monitor privileged APROL script use for unexpected activity.
Validation and detection
- Confirm APROL version is R4.2 V7.08 or later.
- Review sudoers entries related to AprolCluster and APROL maintenance scripts.
- Check logs for unusual sudo, AprolCluster, Python, or root shell activity.
- Verify operational testing after upgrade in a controlled maintenance window.
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-2019-19875 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.