CVE-2023-20273 — Cisco IOS XE Web UI Command Injection Vulnerability
2023-10-23 • CISA Known Exploited Vulnerability
[event] Cisco IOS XE contains a command injection vulnerability in the web user interface. When chained with CVE-2023-20198, the attacker can leverage the new local user to elevate privilege to root and write the implant to the file system. Cisco identified CVE-2023-20273 as the vulnerability exploited to deploy the implant. CVE-2021-1435, previously associated with the exploitation events, is no longer believed to be related to this activity.
> AFFECTED SOFTWARE
| Field | Value |
|---|---|
| Vendor | Cisco |
| Product | Cisco IOS XE Web UI |
| CWE | CWE-78 |
| CVE ID | CVE-2023-20273 |
| Date Added | 2023-10-23 |
| Due Date | 2023-10-27 |
| Ransomware Campaign | Unknown |
> MITIGATION
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.
Due Date: 2023-10-27