CVE-2024-10209
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn Incorrect Permission Assignment for Critical Resource vulnerability in the file system used in B&R APROL <4.4-01 may allow an authenticated local attacker to read and alter the configuration of another engineering or runtime user.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceB&R APROL versions prior to 4.4-01 contain incorrect file system permissions that allow an authenticated local attacker to access and modify configuration files belonging to other engineering or runtime users, enabling potential privilege escalation and tampering of critical system settings.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- Low
- Authentication
- X
- User interaction
- None
- Scope
- X
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify B&R APROL installation and versionLocate the APROL installation directory and check version information. Common locations include /opt/br_aprol, /usr/local/aprol, or check system inventory/diagnostics. Look for version file or use 'braprol -v' if available.Affected if Installed version is prior to 4.4-01 (e.g., 4.3-xx, 4.2-xx, etc.)
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Locate configuration directoriesIdentify configuration directories used by APROL. Typical paths include <install_path>/Config, <install_path>/par, or /etc/aprol. Check for directories containing user-specific or system configuration files.Affected if Configuration directories exist and are owned by multiple different users or contain mixed ownership
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Verify file permission boundariesUse 'ls -la <config_dir>' to list permissions on configuration directories. Check if directory permissions allow world-readable/writeable access (rwxrwxrwx) or if group permissions grant access to users outside the intended owner.Affected if Permissions show 'other' users have read (r--) or write (rwx) access to config directories
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Test cross-user file accessAs a non-privileged authenticated user, attempt to read or modify configuration files belonging to a different user (e.g., 'ls -la ~otheruser/config' or 'cat ~otheruser/config/system.cfg').Affected if Authenticated users can access or modify configuration files owned by other users
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Check for mixed ownership in config pathsRun 'find <aprol_config_path> -user root -o -user aprol -o -user operator 2>/dev/null | head -20' to identify if config files are owned by different users without proper isolation.Affected if Configuration files are owned by multiple different users without proper permission separation
You are affected if APROL version is prior to 4.4-01 AND configuration directories/files grant unauthorized access to authenticated local users outside their intended scope.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade B&R APROL to version 4.4-01 or later. Additionally, audit and correct file system permissions on configuration directories to ensure users cannot access other users' files.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,408.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-10209 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-10209 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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