CVE-2017-6444

high

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.

References

https://www.exploit-db.com/exploits/41601/

https://packetstormsecurity.com/files/141449/Mikrotik-Hap-Lite-6.25-Denial-Of-Service.html

https://cxsecurity.com/issue/WLB-2017030029

http://www.exploitalert.com/view-details.html?id=26137

Details

Source: Mitre, NVD

Published: 2017-03-12

Updated: 2021-05-25

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High