Cisco IOS/IOS XE Web Framework banner Stored cross site scripting

Summaryinfo

A vulnerability labeled as problematic has been found in Cisco IOS and IOS XE. The impacted element is an unknown function of the component Web Framework. Such manipulation of the argument banner as part of Parameter leads to cross site scripting (Stored). This vulnerability is uniquely identified as CVE-2019-12668. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Cisco IOS and IOS XE (Router Operating System) (the affected version unknown). Affected by this issue is an unknown part of the component Web Framework. The manipulation of the argument banner as part of a Parameter leads to a cross site scripting vulnerability (Stored). 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 framework code of Cisco IOS and Cisco IOS XE Software could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the web interface of the affected software using the banner parameter. The vulnerability is due to insufficient input validation of the banner parameters that are passed to the web server of the affected software. An attacker could exploit this vulnerability by crafting a banner parameter and saving it. The attacker could then convince a user of the web interface to access a malicious link or could intercept a user request for the affected web interface and inject malicious code into the request. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected web interface or allow the attacker to access sensitive browser-based information.

The weakness was disclosed 09/25/2019 as cisco-sa-20190925-sbxss as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2019-12668 since 06/04/2019. The attack may be launched remotely. A simple authentication is necessary for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading eliminates this vulnerability.

The entry VDB-142289 is pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Router Operating System

Vendor

• Cisco

Name

• IOS
• IOS XE

License

• commercial

Website

• Vendor: https://www.cisco.com/

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Once again VulDB remains the best source for vulnerability data.

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