CVE-2023-20273
Cisco IOS XE Web UI Command Injection Vulnerability
MITRE ATT&CK techniques
How this vulnerability maps to adversary behaviour, from the Center for Threat-Informed Defense's public CVE→ATT&CK mappings. Use it to check whether your detections already cover the technique.
Summary
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
Vendor: Cisco · Product: Cisco IOS XE Web UI
Weakness types (CWE):
What to do
This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.
Related vulnerabilities in Cisco
| CVE | Name | EPSS | Exploited |
|---|---|---|---|
| CVE-2021-1498 | Cisco HyperFlex HX Data Platform Command Injection Vulnerability | 100.0% | Yes |
| CVE-2020-3452 | Cisco ASA and FTD Read-Only Path Traversal Vulnerability | 100.0% | Yes |
| CVE-2021-1497 | Cisco HyperFlex HX Installer Virtual Machine Command Injection Vulnerability | 99.9% | Yes |
| CVE-2018-0296 | Cisco Adaptive Security Appliance (ASA) Denial-of-Service Vulnerability | 99.9% | Yes |
| CVE-2019-1653 | Cisco Small Business RV320 and RV325 Routers Information Disclosure Vulnerabilit | 99.9% | Yes |
| CVE-2023-20198 | Cisco IOS XE Web UI Privilege Escalation Vulnerability | 99.6% | Yes |
| CVE-2018-0171 | Cisco IOS and IOS XE Software Smart Install Remote Code Execution Vulnerability | 99.5% | Yes |
| CVE-2017-3881 | Cisco IOS and IOS XE Remote Code Execution Vulnerability | 99.0% | Yes |
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