CVE-2019-1912 CRITICAL

CVE-2019-1912: Cisco Small Business 220 Series Smart Switches Authentication Bypass Vulnerability

Vendor Cisco
Product Cisco Small Business 220 Series Smart Plus Switches
Weakness CWE-285
Published August 7, 2019
Last update November 19, 2024

CVSS base score

9.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity High

CVSS vector

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

What the vulnerability does

01Description

A vulnerability in the web management interface of Cisco Small Business 220 Series Smart Switches could allow an unauthenticated, remote attacker to upload arbitrary files. The vulnerability is due to incomplete authorization checks in the web management interface. An attacker could exploit this vulnerability by sending a malicious request to certain parts of the web management interface. Depending on the configuration of the affected switch, the malicious request must be sent via HTTP or HTTPS. A successful exploit could allow the attacker to modify the configuration of an affected device or to inject a reverse shell. This vulnerability affects Cisco Small Business 220 Series Smart Switches running firmware versions prior to 1.1.4.4 with the web management interface enabled. The web management interface is enabled via both HTTP and HTTPS by default.

Key dates

02Disclosure timeline

August 7, 2019 CVE published
November 19, 2024 Record updated