CVE-2023-20018
8.6 · HIGHOverview
CVE-2023-20018 is a high-severity vulnerability affecting cisco ip_phone_7800_firmware. It was published on January 20, 2023 and has a CVSS 3.1 base score of 8.6 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
A vulnerability in the web-based management interface of Cisco IP Phone 7800 and 8800 Series Phones could allow an unauthenticated, remote attacker to bypass authentication on an affected device.
This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface. A successful exploit could allow the attacker to access certain parts of the web interface that would normally require authentication.
Remediation
Check the references section for vendor advisories and patches from cisco. Update ip_phone_7800_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| cisco | ip_phone_7800_firmware | >= 0, < 14.1\(1\)sr2 | Affected |
| cisco | ip_phone_7811_firmware | >= 0, < 14.1\(1\)sr2 | Affected |
| cisco | ip_phone_7821_firmware | >= 0, < 14.1\(1\)sr2 | Affected |
| cisco | ip_phone_7832_firmware | >= 0, < 14.1\(1\)sr2 | Affected |
| cisco | ip_phone_7841_firmware | >= 0, < 14.1\(1\)sr2 | Affected |
| cisco | ip_phone_7861_firmware | >= 0, < 14.1\(1\)sr2 | Affected |
| cisco | ip_phone_8800_firmware | >= 0, < 14.1\(1\)sr2 | Affected |
| cisco | ip_phone_8811_firmware | >= 0, < 14.1\(1\)sr2 | Affected |
| cisco | ip_phone_8821_firmware | >= 0, < 14.1\(1\)sr2 | Affected |
| cisco | ip_phone_8821-ex_firmware | >= 0, < 14.1\(1\)sr2 | Affected |
Frequently Asked Questions
What is CVE-2023-20018?
CVE-2023-20018 is a high-severity vulnerability affecting cisco ip_phone_7800_firmware. It was published on January 20, 2023 and has a CVSS 3.1 base score of 8.6 (HIGH).
How severe is CVE-2023-20018?
This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2023-20018?
Check the references section for vendor advisories and patches from cisco. Update ip_phone_7800_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2023-20018?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-20018 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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