Open redirect in Cisco Small Business Series Switches

Published: 2019-07-22

Risk	Low
Patch available	NO
Number of vulnerabilities	1
CVE-ID	CVE-2019-1943
CWE-ID	CWE-601
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #1 is available.
Vulnerable software Subscribe	Cisco Small Business 500 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 200 Series Smart Switches Hardware solutions / Routers & switches, VoIP, GSM, etc
Vendor	Cisco Systems, Inc

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Open redirect

EUVDB-ID: #VU19287

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:L/A:N/E:P/RL:U/RC:C]

CVE-ID: CVE-2019-1943

CWE-ID: CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to redirect a user to a malicious web page.

The vulnerability exists due to the improper input validation of the parameters of an HTTP request. A remote attacker can intercept a user's HTTP request and modify it into a request that causes the web interface to redirect the user to a specific malicious URL.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Cisco Small Business 500 Series Stackable Managed Switches: All versions

Cisco Small Business 300 Series Managed Switches: All versions

Cisco Small Business 200 Series Smart Switches: All versions

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190717-sbss-redirect

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. However, proof of concept for this vulnerability is available.