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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 13.5%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 13.49% probability · 96th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- mikrotik/routeros
- Source
- cve@mitre.org
References
- http://www.exploitalert.com/view-details.html?id=26137Exploit, Third Party Advisory
- https://cxsecurity.com/issue/WLB-2017030029Exploit, Third Party Advisory
- https://packetstormsecurity.com/files/141449/Mikrotik-Hap-Lite-6.25-Denial-Of-Service.htmlExploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/41601/Exploit, Third Party Advisory, VDB Entry
- http://www.exploitalert.com/view-details.html?id=26137Exploit, Third Party Advisory
- https://cxsecurity.com/issue/WLB-2017030029Exploit, Third Party Advisory
- https://packetstormsecurity.com/files/141449/Mikrotik-Hap-Lite-6.25-Denial-Of-Service.htmlExploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/41601/Exploit, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.