Cisco Security Advisory
Cisco Small Business 200, 300, and 500 Series Switches Web-Based Management Stored Cross-Site Scripting Vulnerability
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CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N/E:X/RL:X/RC:X
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A vulnerability in the web-based management interface of Cisco Small Business 200 Series Smart Switches, Cisco Small Business 300 Series Managed Switches, and Cisco Small Business 500 Series Stackable Managed Switches could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface on an affected device.
This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by persuading a user of an affected interface to view a page containing malicious HTML or script content. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. To exploit this vulnerability, the attacker would need to have valid credentials to access the web-based management interface of the affected device.
Cisco has not released software updates to address this vulnerability. There are no workarounds that address this vulnerability.
This advisory is available at the following link:
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-smb-sxss-OPYJZUmE
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Vulnerable Products
At the time of publication, this vulnerability affected the following Cisco products:
- Small Business 200 Series Smart Switches
- Small Business 300 Series Managed Switches
- Small Business 500 Series Stackable Managed Switches
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory are known to be affected by this vulnerability.
Cisco has confirmed that this vulnerability does not affect the following Cisco products:
- 220 Series Smart Switches
- 250 Series Smart Switches
- 350 Series Managed Switches
- 350X Series Stackable Managed Switches
- 550X Series Stackable Managed Switches
- Business 220 Series Smart Switches
- Business 250 Series Smart Switches
- Business 350 Series Managed Switches
- ESW2 Series Advanced Switches
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The original report from Ahmed Hassan and Josef Hassan was regarding HTML injection vulnerability. Cisco investigated these claims and found that the fields that were being used to inject HTML markup were fields that are expected to contain HTML markup code. While investigating the original report, Cisco also found that the XSS vulnerability described in this advisory could be exploited using the originally reported fields.
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There are no workarounds that address this vulnerability.
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Cisco has not released and will not release firmware updates to address the vulnerability that is described in this advisory. The Cisco Small Business 200 Series Smart Switches, Cisco Small Business 300 Series Managed Switches, and Cisco Small Business 500 Series Stackable Managed Switches have entered the end-of-life process. Customers are advised to refer to the end-of-life notices for these products:
End-of-Sale and End-of-Life Announcement for Cisco Small Business 200 Series Smart Switches
End-of-Sale and End-of-Life Announcements for Cisco Small Business 300 Series Managed Switches
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The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
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Cisco would like to thank Ahmed Hassan and Josef Hassan for reporting this vulnerability.
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To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
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Show LessVersion Description Section Status Date 1.0 Initial public release. - Final 2023-JUN-07
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