Denial of service in MikroTik RouterOS - CVE-2018-1158

 

Denial of service in MikroTik RouterOS - CVE-2018-1158

Published: August 25, 2018


Vulnerability identifier: #VU14526
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-1158
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: MikroTik
Affected software:
MikroTik RouterOS

Detailed vulnerability description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to an error when parsing recursive JSON requests within the HTTP server. A remote authenticated attacker can send specially crafted requets to the affected device and crash the HTTP server.


How to mitigate CVE-2018-1158

Install updates from vendor's website.

Sources