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.

CVSS v3.1

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0

7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C

EPSS

13.49% chance of exploitation in the next 30 days, 96th percentile

Published

2017-03-12

Updated

2024-08-05

Proof-of-concept exploits (1)

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

ExploitDB entries (1)

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

References

• CVE Record
• NVD entry

Related

• CVE-2017-6443
• CVE-2017-6465
• CVE-2017-6440
• CVE-2017-6478
• CVE-2017-6439
• CVE-2017-6481