Cisco Small Business RV Router Web-based Management Interface cross site scripting

Summaryinfo

A vulnerability categorized as problematic has been discovered in Cisco Small Business RV Router. Affected is an unknown function of the component Web-based Management Interface. Such manipulation leads to cross site scripting. This vulnerability is referenced as CVE-2020-3431. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco Small Business RV Router (affected version unknown). It has been rated as problematic. Affected by this issue is an unknown functionality of the component Web-based Management Interface. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

A vulnerability in the web-based management interface of Cisco Small Business RV042 Dual WAN VPN Routers and Cisco Small Business RV042G Dual Gigabit WAN VPN Routers could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of the affected software. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. 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.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

The advisory is shared for download at sec.cloudapps.cisco.com. This vulnerability is handled as CVE-2020-3431 since 12/12/2019. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Router Operating System

Vendor

• Cisco

Name

• Small Business RV Router

License

• commercial

Website

• Vendor: https://www.cisco.com/

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