CVE-2023-20198: Cisco IOS XE Web UI Privilege Escalation Vulnerability
Cisco IOS XE Web UI contains a privilege escalation vulnerability in the web user interface that could allow a remote, unauthenticated attacker to create an account with privilege level 15 access. The attacker can then use that account to gain control of the affected device.
| Vendor | Cisco |
|---|---|
| Product | IOS XE Web UI |
| Date added to KEV | 2023-10-16 |
| Due date (BOD 22-01) | 2023-10-20 |
| Known ransomware campaign use | Unknown |
| CWE | CWE-420 |
| Required action | Verify that instances of Cisco IOS XE Web UI are in compliance with BOD 23-02 and apply mitigations per vendor instructions. For affected products (Cisco IOS XE Web UI exposed to the internet or to untrusted networks), follow vendor instructions to determine if a system may have been compromised and immediately report positive findings to CISA. |
What to do
- Identify every instance of Cisco IOS XE Web UI in your environment (asset inventory, EDR, vulnerability scanner).
- Apply CISA's required action: Verify that instances of Cisco IOS XE Web UI are in compliance with BOD 23-02 and apply mitigations per vendor instructions. For affected products (Cisco IOS XE Web UI exposed to the internet or to untrusted networks), follow vendor instructions to determine if a system may have been compromised and immediately report positive findings to CISA.
- Federal civilian agencies must act by 2023-10-20 under BOD 22-01; other organizations can use the same date as a target.
- Check the vendor advisory and NVD entry linked below for affected versions, then record the fix in your change log.
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