Cross-site scripting in Cisco Systems, Inc products - CVE-2020-3121
Published: January 24, 2020
Vulnerability identifier: #VU24515
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2020-3121
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in the web-based management interface. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Affected software
Cisco 550X Series Stackable Managed Switches
Cisco 250 Series Smart Switches
Cisco 350 Series Managed Switches
Cisco 250 Series Smart Switches
Cisco 350 Series Managed Switches
How to mitigate CVE-2020-3121
Install updates from vendor's website.
Cisco 550X Series Stackable Managed Switches - update to 2.5.0.90
Cisco 250 Series Smart Switches - update to 2.5.0.90
Cisco 350 Series Managed Switches - update to 2.5.0.90
Cisco 250 Series Smart Switches - update to 2.5.0.90
Cisco 350 Series Managed Switches - update to 2.5.0.90