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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.135 (96.3th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.135 · newest: 0.135 · change: 0.000
Affected products
- Mikrotik Router Hap Lite
- Mikrotik Routeros — versions 6.25
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/41601/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- cxsecurity.com/issue/WLB-2017030029 (Exploit, Third Party Advisory)
- packetstormsecurity.com/files/141449/Mikrotik-Hap-Lite-6.25-Denial-Of-Service.h… (Exploit, VDB Entry, Third Party Advisory)
- www.exploitalert.com/view-details.html (Exploit, Third Party Advisory)
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.