Resource exhaustion in Mikrotik Router Hap Lite
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.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.135 (96.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Mikrotik Router_hap_lite
- Mikrotik Routeros — versions 6.25
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2017-6444?
- CVE-2017-6444 is a high-severity vulnerability in Mikrotik Router Hap Lite, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2017-03-12.
- How severe is CVE-2017-6444?
- High severity. CVSS v3 base score is 7.5 out of 10.