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Blind Spot Protection Sensor Ecu FirmwareOperating system · Nissan Global

CVE-2024-6348

HIGH · 7.5 CVSS v3.1 Published 2024-08-19
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click

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 · unedited
Predictable seed generation in the security access mechanism of UDS in the Blind Spot Protection Sensor ECU in Nissan Altima (2022) allows attackers to predict the requested seeds and bypass security controls via repeated ECU resets and seed requests.

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 · high confidence

The Blind Spot Protection Sensor ECU in Nissan Altima (2022) uses a predictable seed generation algorithm for UDS security access authentication. Attackers can bypass security controls by performing repeated ECU resets and seed requests, allowing them to predict the seed values and compute valid security access tokens without proper authorization.

MitigationUpdate ECU firmware to implement cryptographically secure random number generation for seed values, ensuring each security access session uses unpredictable seeds.

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 data
Blind Spot Protection Sensor Ecu FirmwareOperating system
Affected:all versions

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
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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 checks

Work through these to decide whether this CVE applies to you.

  1. Confirm Blind Spot Protection Sensor ECU presence
    Identify if the vehicle is a Nissan Altima (2022) or other Nissan model equipped with the Blind Spot Protection Sensor ECU. Check vehicle configuration or ECU inventory via OBD-II diagnostic tool using UDS service $19 (ReadDTCInformation) with ID 0x01 to query installed control modules.
    Affected if The vehicle contains a Blind Spot Protection Sensor ECU, as all firmware versions of this ECU are vulnerable.
  2. Check UDS security access configuration
    Verify whether UDS security access (service $27) is enabled and accessible on the Blind Spot Protection Sensor ECU. Use a diagnostic tool to attempt a security access request to this specific ECU. Note that service $27 requests to this ECU indicate the security mechanism is active.
    Affected if UDS security access is enabled on the Blind Spot Protection Sensor ECU, making it susceptible to the predictable seed attack.
  3. Review diagnostic logs for repeated seed requests
    Examine ECU diagnostic logs or capture OBD-II traffic to identify repeated security access seed requests ($27 01) followed by ECU resets. Look for patterns of multiple authentication attempts within short time windows.
    Affected if Logs show repeated security access requests and ECU resets, indicating potential attack probing or successful exploitation.
  4. Inspect firmware for seed generation implementation
    If firmware dump or analysis is possible, examine the security access seed generation routine in the Blind Spot Protection Sensor ECU firmware. Look for non-random or predictable patterns in seed values generated by the algorithm.
    Affected if The firmware uses a deterministic or predictable algorithm for seed generation rather than cryptographically secure random number generation.

A defender is affected if their vehicle has a Blind Spot Protection Sensor ECU with UDS security access enabled, as all firmware versions of this ECU contain the predictable seed vulnerability.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update ECU firmware to implement cryptographically secure random number generation for seed values, ensuring each security access session uses unpredictable seeds.

Fix this in Blind Spot Protection Sensor Ecu Firmware Scoped from the published advisory
  • Consultation8.0 h
  • Implementation24.0 h
  • Testing16.0 h
  • Review / QA8.0 h
56.0 hours of engineering $9,760
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-6348 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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