CVE-2012-4687
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 · uneditedPost Oak AWAM Bluetooth Reader Traffic System does not use a sufficient source of entropy for private keys, which makes it easier for man-in-the-middle attackers to spoof a device by predicting a key value.
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 confidenceThe Post Oak AWAM Bluetooth Reader Traffic System generates private keys using insufficient entropy, making the keys predictable. Attackers can exploit this weakness to predict or brute-force the key values, enabling man-in-the-middle attacks to spoof the device and intercept or manipulate traffic system communications.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE dataall versionsCVSS 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
- Network
- Complexity
- High
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:H/Au:N/C:C/I:C/A:C
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.
-
Identify Post Oak AWAM Bluetooth Reader devices on your networkScan for Bluetooth devices or network inventory to locate any traffic system readers matching this product name. Check network documentation or physical inventory for Postoaktraffic Awam Bluetooth Reader units.Affected if Post Oak AWAM Bluetooth Reader devices are present in the environment
-
Verify Bluetooth pairing key strengthIf you can access the device management interface or configuration, examine the Bluetooth pairing keys or pre-shared keys configured. Attempt to determine if keys are using default values, sequential patterns, or appear to have low entropy (predictable patterns).Affected if The device uses default, sequential, or otherwise predictable Bluetooth pairing keys
-
Check for known default credentialsConsult device documentation or security advisories for known default keys associated with this device. Test whether common default Bluetooth PINs or passkeys grant access to the device.Affected if Default Bluetooth PINs or passkeys successfully authenticate to the device
-
Inspect firmware version if accessibleIf device firmware is accessible via management interface or network enumeration, retrieve the firmware version information.Affected if Firmware version cannot be determined or is confirmed to be any version (all versions affected per vendor disclosure)
If Post Oak AWAM Bluetooth Reader devices are in use and use default, predictable, or low-entropy Bluetooth pairing keys, the environment is vulnerable to this CVE.
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 dataRegenerate all private keys using a cryptographically secure pseudo-random number generator (CSPRNG) with adequate entropy sources, and update the firmware to enforce proper key generation. Consider replacing the device if firmware updates are not possible.
- Consultation6.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,448.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2012-4687 — 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-2012-4687 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data