Medium severity · published Jan 26, 2020
CVE-2020-3121
A vulnerability in the web-based management interface of Cisco Small Business Smart and Managed Switches could allow an unauthenticated, remote attacker to conduct a cross-site…
6.1
CVSS
1.1%
EPSS
No
On KEV
Description
A vulnerability in the web-based management interface of Cisco Small Business Smart and Managed Switches could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of the affected device. An attacker could exploit this vulnerability by persuading a user of the interface to click a malicious link and access a specific page. 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SF
Sf350-48 Firmware · Cisco
through 2.5.0.90 · source: NVD
SF
Sf350-48mp Firmware · Cisco
through 2.5.0.90 · source: NVD
SF
Sf350-48p Firmware · Cisco
through 2.5.0.90 · source: NVD
SF
Sf550x-24 Firmware · Cisco
through 2.5.0.90 · source: NVD
SF
Sf550x-24p Firmware · Cisco
through 2.5.0.90 · source: NVD
SF
Sf550x-48 Firmware · Cisco
through 2.5.0.90 · source: NVD
SF
Sf550x-48mp Firmware · Cisco
through 2.5.0.90 · source: NVD
SF
Sf550x-48p Firmware · Cisco
through 2.5.0.90 · source: NVD
SF
Sg250-08 Firmware · Cisco
through 2.5.0.90 · source: NVD
SF
Sg250-08hp Firmware · Cisco
through 2.5.0.90 · source: NVD
SF
Sg250-10p Firmware · Cisco
through 2.5.0.90 · source: NVD
SF
Sg250-18 Firmware · Cisco
through 2.5.0.90 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-3121
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-3121
Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200122-sbsms-xss
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