Cisco ASA/Firepower Threat Defense up to 9.5.3.1 Web Services Interface cross site scripting

Summaryinfo

A vulnerability described as problematic has been identified in Cisco ASA and Firepower Threat Defense. This affects an unknown function of the component Web Services Interface. Such manipulation leads to cross site scripting. This vulnerability is documented as CVE-2021-1444. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Cisco ASA and Firepower Threat Defense. Affected by this issue is an unknown code block of the component Web Services 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 services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct cross-site scripting (XSS) attacks against a user of the interface. This vulnerability is due to insufficient validation of user-supplied input by the web services interface of an affected device. 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 interface or allow the attacker to access sensitive, browser-based information.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.This advisory is part of the October 2021 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication. For a complete list of the advisories and links to them, see .

The advisory is shared for download at sec.cloudapps.cisco.com. This vulnerability is handled as CVE-2021-1444 since 11/13/2020. 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 current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/18/2024). The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Firewall Software

Vendor

• Cisco

Name

• ASA
• Firepower Threat Defense

Version

• 9.0.1.1
• 9.0.1.2
• 9.0.1.4
• 9.0.2.2
• 9.0.2.6
• 9.0.2.12
• 9.0.3.1
• 9.0.3.3
• 9.0.3.10
• 9.1.1.2
• 9.1.1.7
• 9.1.1.8
• 9.1.2
• 9.1.2.3
• 9.1.2.5
• 9.1.2.6
• 9.1.3.4
• 9.1.4.3
• 9.1.4.6
• 9.1.5.1
• 9.1.5.2
• 9.1.5.3
• 9.1.5.6
• 9.1.5.7
• 9.3.1
• 9.4.2.6
• 9.4.2.11
• 9.5.3.1

License

• commercial

Website

• Vendor: https://www.cisco.com/

CPE 2.3info

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