CVE-2017-6444

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 95%
VendorProductVersion
mikrotikrouteros
6.25
𝑥
= Vulnerable software versions
Common Weakness Enumeration
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/