CVE-2024-20534: Cisco IP Phone 6800, 7800, 8800, and 9800 Series with Multiplatform Firmware Stored Cross-Site Scripting Vulnerability
First published: Wed Nov 06 2024(Updated: )
A vulnerability in the web UI of Cisco Desk Phone 9800 Series, Cisco IP Phone 6800, 7800, and 8800 Series, and Cisco Video Phone 8875 with Cisco Multiplatform Firmware could allow an authenticated, remote attacker to conduct stored cross-site scripting (XSS) attacks against users. This vulnerability exists because the web UI of an affected device does not properly validate user-supplied input. An attacker could exploit this vulnerability by injecting malicious code into specific pages of the interface. 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. Note: To exploit this vulnerability, Web Access must be enabled on the phone and the attacker must have Admin credentials on the device. Web Access is disabled by default.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Desk Phone 9800 Series | ||
| Cisco IP Phone 6800 Series | ||
| Cisco IP Phone 7800 Series Firmware | ||
| Cisco IP Phone 8800 Series Software | ||
| Cisco Video Phone 8875 | ||
| Cisco Multiplatform Firmware |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-20534?
CVE-2024-20534 has been classified as a medium severity vulnerability.
How do I fix CVE-2024-20534?
To fix CVE-2024-20534, apply the latest firmware updates from Cisco for the affected phone models.
What types of attacks can be conducted using CVE-2024-20534?
CVE-2024-20534 can allow authenticated attackers to conduct stored cross-site scripting (XSS) attacks against users.
Which Cisco products are affected by CVE-2024-20534?
CVE-2024-20534 affects Cisco Desk Phone 9800 Series, Cisco IP Phone 6800, 7800, 8800 Series, and Cisco Video Phone 8875.
Is user authentication required to exploit CVE-2024-20534?
Yes, an attacker must be authenticated to exploit CVE-2024-20534.
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