CVE-2014-2120 Cisco Adaptive Security Appliance (ASA): web page flaw
In plain words: A web app can be made to act on someone's behalf or reach places it should not. Stolen sessions, actions taken as the victim, or access to internal systems.
Confirmed exploited by CISA on · US federal patch deadline Dec 3, 2024
What to do
- Install Cisco's security update for Adaptive Security Appliance (ASA). If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Patch edge devices first — attackers often start scanning for them within hours of a fix.
- Never expose the device's admin page to the internet.
- After patching a device that was exposed, follow the vendor's compromise checks, end active sessions and change passwords.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: They face the internet and guard the whole network, so a flaw here can hand attackers a way in — and these devices usually run no antivirus, so break-ins go unnoticed.
The details
- Official name
- Cisco Adaptive Security Appliance (ASA) Cross-Site Scripting (XSS) Vulnerability
- Product
- Cisco Adaptive Security Appliance (ASA)
- CISA description
- Cisco Adaptive Security Appliance (ASA) contains a cross-site scripting (XSS) vulnerability in the WebVPN login page. This vulnerability allows remote attackers to inject arbitrary web script or HTML via an unspecified parameter.
- Type of flaw
- Web page flaw (CWE-79)
- Confirmed exploited
- Nov 12, 2024
- US federal patch deadline
- Dec 3, 2024
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Answering about CVE-2014-2120 ·
Questions about CVE-2014-2120
Is CVE-2014-2120 being exploited?
Yes. CISA added CVE-2014-2120 to its Known Exploited Vulnerabilities catalog on Nov 12, 2024, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2014-2120?
Install Cisco's security update for Adaptive Security Appliance (ASA). If no update exists, follow the vendor's workaround or stop using the product until one ships. Patch edge devices first — attackers often start scanning for them within hours of a fix.
Am I affected by CVE-2014-2120?
Only if you use Cisco Adaptive Security Appliance (ASA). Aimed mostly at company systems — you are affected through the companies you use, not your own phone.