Horizon Alert
Summary of the vulnerability and why it matters
The Cisco IOS XE Software's web user interface has a vulnerability stemming from inadequate input validation. This flaw allows an authenticated attacker to introduce commands with root-level privileges. Exploiting this could enable an attacker to execute commands on the underlying operating system, gaining full control.
- Cisco IOS XE web UI
- Flaw allows command injection
- Attackers gain root privileges
Attack Path
How an attacker could exploit the issue
This vulnerability allows an attacker to gain elevated privileges on a compromised system. The attack begins with an authenticated user interacting with the device's web interface. By providing specially crafted input, the attacker can bypass security checks and execute commands with root-level permissions. This control over the operating system can then be used to further compromise the system.
- Requires authenticated access.
- Attacker sends crafted input to web UI.
- Results in root privilege command execution.
Live Threat
Current exploitation, exposure, and threat context
Exploitation of this vulnerability could allow an authenticated attacker to inject commands with root privileges on the affected Cisco IOS XE device. The exploit requires valid authentication credentials and network access to the device's web management interface. Successful exploitation enables an attacker to execute arbitrary commands with root privileges, modify device configurations, create new privileged accounts, install persistent backdoors, exfiltrate sensitive data, and pivot to other network devices. This vulnerability is particularly dangerous as it affects critical network infrastructure like switches and routers.
- Likely attacker skill level: Moderately capable attackers.
- Required access or conditions: Authenticated access to the web UI.
- Business risk or urgency: High; actively exploited in the wild.
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
This vulnerability allows an authenticated attacker to inject commands with root privileges into the underlying operating system. This can occur due to insufficient input validation in the web user interface feature of Cisco IOS XE Software. Successful exploitation could lead to significant compromise of affected systems and data.
- Identify exposed Cisco IOS XE assets.
- Reduce exposure or isolate affected devices.
- Apply vendor fixes and validate.
- Monitor for related issues.
