Information disclosure in Cisco Small Business Switches



Published: 2020-01-30
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-15993
CWE-ID CWE-16
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Cisco 250 Series Smart Switches
Hardware solutions / Routers & switches, VoIP, GSM, etc

Cisco 350 Series Managed Switches
Hardware solutions / Routers & switches, VoIP, GSM, etc

Cisco 350X Series Stackable Managed Switches
Hardware solutions / Routers & switches, VoIP, GSM, etc

Cisco 550X Series Stackable Managed Switches
Hardware solutions / Routers & switches, VoIP, GSM, etc

Cisco Small Business 300 Series Managed Switches
Hardware solutions / Routers & switches, VoIP, GSM, etc

Cisco Small Business 500 Series Stackable Managed Switches
Hardware solutions / Routers & switches, VoIP, GSM, etc

Cisco Small Business 200 Series Smart Switches
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor Cisco Systems, Inc

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Configuration

EUVDB-ID: #VU24756

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-15993

CWE-ID: CWE-16 - Configuration

Exploit availability: No

Description

The vulnerability allows a remote attacker to access sensitive device information.

The vulnerability exists due to the affected software lacks proper authentication controls to information accessible from the web UI.  A remote attacker can send a malicious HTTP request to the web UI of an affected device and gain access to sensitive device information, which includes configuration files.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco 250 Series Smart Switches: before 2.5.0.92

Cisco 350 Series Managed Switches: before 2.5.0.92

Cisco 350X Series Stackable Managed Switches: before 2.5.0.92

Cisco 550X Series Stackable Managed Switches: before 2.5.0.92

Cisco Small Business 300 Series Managed Switches: before 1.4.11.4

Cisco Small Business 500 Series Stackable Managed Switches: before 1.4.11.4

Cisco Small Business 200 Series Smart Switches: before 1.4.11.4

CPE2.3 External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200129-smlbus-switch-disclos


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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