CVE-2017-16249 Information

Description

The Debut embedded http server contains a remotely exploitable denial of service where a single malformed HTTP POST request can cause the server to hang until eventually replying (~300 seconds) with an HTTP 500 error. While the server is hung print jobs over the network are blocked and the web interface is inaccessible. An attacker can continuously send this malformed request to keep the device inaccessible to legitimate traffic.

CVSS Vector

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

Reference

http://packetstormsecurity.com/files/144908/Debut-Embedded-httpd-1.20-Denial-Of-Service.html https://www.exploit-db.com/exploits/43119/ https://www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2017-017/?fid=10211 https://www.trustwave.com/Resources/SpiderLabs-Blog/Denial-of-Service-Vulnerability-in-Brother-Printers/?page=1&year=0&month=0&LangType=1033

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5