Cisco Small Business 220 Series Smart Switches Multiple Vulnerabilities Threat Alert

Cisco Small Business 220 Series Smart Switches Multiple Vulnerabilities Threat Alert

August 14, 2019 | Mina Hao

Overview

On August 6, 2019, local time, Cisco released security advisories on remediation of three vulnerabilities in Small Business 220 Series Smart Switches, including two critical ones, one of which has a CVSS 3.0 score as high as 9.8.

Reference link:

https://tools.cisco.com/security/center/publicationListing.x

Vulnerability Overview

  • Command injection vulnerability (CVE-2019-1914)

CVSS 3.0 score: Base 7.2

A vulnerability exists in the web management interface of Cisco Small Business 220 Series Smart Switches, allowing authenticated, remote attackers to perform a command injection attack.

For details, see the official advisory:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190806-sb220-inject

  • Authentication bypass vulnerability (CVE-2019-1912)

CVSS 3.0 score: Base 9.1

A vulnerability exists in the web management interface of Cisco Small Business 220 Series Smart Switches, allowing unauthenticated, remote attackers to upload arbitrary files.

For details, see the official advisory:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190806-sb220-auth_bypass

  • Remote code execution vulnerability (CVE-2019-1913)

CVSS 3.0 score: Base 9.8

Multiple vulnerabilities exist in the web management interface of Cisco Small Business 220 Series Smart Switches, allowing unauthenticated, remote attackers to overflow a buffer, which then allows the execution of arbitrary code with root privileges on the underlying operating system.

For details, see the official advisory:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190806-sb220-rce

Affected Versions

  • Cisco Small Business 220 Series Smart Switches firmware version < 1.1.4.4

Unaffected Versions

  • Cisco Small Business 220 Series Smart Switches firmware version >= 1.1.4.4

Solution

Cisco has released firmware updates that address these vulnerabilities. Affected users should upgrade to the latest versions as soon as possible.

Reference links:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190806-sb220-inject

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190806-sb220-auth_bypass

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190806-sb220-rce

Statement

This advisory is only used to describe a potential risk. NSFOCUS does not provide any commitment or promise on this advisory. NSFOCUS and the author will not bear any liability for any direct and/or indirect consequences and losses caused by transmitting and/or using this advisory. NSFOCUS reserves all the rights to modify and interpret this advisory. Please include this statement paragraph when reproducing or transferring this advisory. Do not modify this advisory, add/delete any information to/from it, or use this advisory for commercial purposes without permission from NSFOCUS.

About NSFOCUS

NSFOCUS, Inc., a global network and cyber security leader, protects enterprises and carriers from advanced cyber attacks. The company’s Intelligent Hybrid Security strategy utilizes both cloud and on-premises security platforms, built on a foundation of real-time global threat intelligence, to provide multi-layered, unified and dynamic protection against advanced cyber attacks.

NSFOCUS works with Fortune Global 500 companies, including four of the world’s five largest financial institutions, organizations in insurance, retail, healthcare, critical infrastructure industries as well as government agencies. NSFOCUS has technology and channel partners in more than 60 countries, is a member of both the Microsoft Active Protections Program (MAPP), and the Cloud Security Alliance (CSA).

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