CVE-2017-6444
Description
The MikroTik Router hAP Lite 6.25 has no protection mechanism for unsolicited TCP ACK packets in the case of a fast network connection, which allows remote attackers to cause a denial of service (CPU consumption) by sending many ACK packets. After the attacker stops the exploit, the CPU usage is 100% and the router requires a reboot for normal operation.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
MikroTik Router - ARP Table OverFlow Denial Of Service
References
- http://www.exploitalert.com/view-details.html?id=26137
- https://cxsecurity.com/issue/WLB-2017030029
- https://packetstormsecurity.com/files/141449/Mikrotik-Hap-Lite-6.25-Denial-Of-Service.html
- https://www.exploit-db.com/exploits/41601/
- http://www.exploitalert.com/view-details.html?id=26137
- https://cxsecurity.com/issue/WLB-2017030029
- https://packetstormsecurity.com/files/141449/Mikrotik-Hap-Lite-6.25-Denial-Of-Service.html
- https://www.exploit-db.com/exploits/41601/
CWEs
CWE-400
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.