CVE-2017-6017
No known exploitation. EPSS puts it in the 92nd percentile. Only a workaround so far.
What to do
No fixed build is published yet. The vendor describes a workaround.
What it is
From the CVE record
A Resource Exhaustion issue was discovered in Schneider Electric Modicon M340 PLC BMXNOC0401, BMXNOE0100, BMXNOE0110, BMXNOE0110H, BMXNOR0200H, BMXP341000, BMXP342000, BMXP3420102, BMXP3420102CL, BMXP342020, BMXP342020H, BMXP342030, BMXP3420302, BMXP3420302H, and BMXP342030H. A remote attacker could send a specially crafted set of packets to the PLC causing it to freeze, requiring the operator to physically press the reset button on the PLC in order to recover.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
4.8% chance of exploitation activity in the next 30 days, which ranks it in the 92nd percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
6 events over 3282 days, from the signal feeds we watch.
- OpenVAS check added
- Workaround availablerecord updated
- Publishedweakness classified, att&ck mapped
Affected products
- bmxnoc0401 firmwareICS / OT / IoT
- bmxnoe0100 firmwareICS / OT / IoT
- bmxnoe0110 firmwareICS / OT / IoT
- bmxnoe0110h firmwareICS / OT / IoT
- bmxnor0200h firmwareICS / OT / IoT
- modicon m340 bmxp341000 firmwareICS / OT / IoT
- modicon m340 bmxp342000 firmwareICS / OT / IoT
- modicon m340 bmxp3420102 firmwareICS / OT / IoT
And 8 more affected products. See all after sign-in
Technical detail
CVSS 3.0 vector
Open in the CVSS calculatorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Scored 7.5 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality NoneNo confidentiality impact
- Integrity NoneNo integrity impact
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
Sources
References in the record
- schneider-electric.com/en/download/document/SEVD-2017-048-02/
- securityfocus.com/bid/96414
- ics-cert.us-cert.gov/advisories/ICSA-17-054-03
And 7 more references. See all after sign-in
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