CVE-2016-3962
Public exploit available. Not confirmed exploited in the wild yet. No fix published yet.
What to do
No fixed build or workaround is published yet. Limit exposure and watch for a patch.
What it is
From the CVE record
Stack-based buffer overflow in the NTP time-server interface on Meinberg IMS-LANTIME M3000, IMS-LANTIME M1000, IMS-LANTIME M500, LANTIME M900, LANTIME M600, LANTIME M400, LANTIME M300, LANTIME M200, LANTIME M100, SyncFire 1100, and LCES devices with firmware before 6.20.004 allows remote attackers to obtain sensitive information, modify data, or cause a denial of service via a crafted parameter in a POST request.
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
1 source with a proof of concept or module.
Exploit links, PoCs and Metasploit modules after sign-in- EPSS
5.2% 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
7 events over 3644 days, from the signal feeds we watch.
- OpenVAS check added
- EPSS band changemoderate → low
- Record updated
- Public exploit / PoCsource: exploit-db
- Publishedweakness classified, att&ck mapped
Affected products
- ntp server firmwareNetworking Infrastructure / dns-dhcp-ntp
- ims-lantime m1000Networking Infrastructure / dns-dhcp-ntp
- ims-lantime m3000Networking Infrastructure / dns-dhcp-ntp
- ims-lantime m500Networking Infrastructure / dns-dhcp-ntp
- lantime m100Networking Infrastructure / dns-dhcp-ntp
- lantime m200Networking Infrastructure / dns-dhcp-ntp
- lantime m300Networking Infrastructure / dns-dhcp-ntp
- lantime m400Networking Infrastructure / dns-dhcp-ntp
And 5 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:L/I:L/A:L
Scored 7.3 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 LowSome restricted information is disclosed, but limited in scope
- Integrity LowData modification is possible but limited in scope or consequence
- Availability LowReduced performance or intermittent disruption of service
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
- Initial AccessT1190Exploit Public-Facing Applicationhigh confidence
- Privilege EscalationT1068Exploitation for Privilege Escalationhigh confidence
Sources
References in the record
- exploit-db.com/exploits/40120/
- ics-cert.us-cert.gov/advisories/ICSA-16-175-03
- raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2016/icsa-16-175-03.json
And 9 more references. See all after sign-in
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We'll flag the next CVE, public exploit or patch for Ntp Server Firmware, not every advisory. This one: public exploit.
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