Cisco on Wednesday announced patches for a high-severity command injection vulnerability in the IOx application hosting environment that could allow malicious code to persist across reboots.
Tracked as CVE-2023-20076, the security defect exists because parameters that are passed for the activation of an application are not completely sanitized.
“An attacker could exploit this vulnerability by deploying and activating an application in the Cisco IOx application hosting environment with a crafted activation payload file. A successful exploit could allow the attacker to execute arbitrary commands as root on the underlying host operating system,” the tech giant explains in an advisory.
According to Trellix, the cybersecurity firm that discovered the vulnerability, the issue resides in the DHCP Client ID option within the Interface Settings, which is not being correctly sanitized, leading to command injection.
Furthermore, the bug bypasses mitigations to prevent persistence across reboots and system resets.
“CVE-2023-20076 gains unrestricted access, allowing malicious code to lurk in the system and persist across reboots and firmware upgrades. Side-stepping this security measure means that if an attacker exploits this vulnerability, the malicious package will keep running until the device is factory reset or until it is manually deleted,” Trellix explains.
The bug impacts all Cisco devices running IOS XE Software with the IOx feature enabled, if they do not support native docker, including 800 series industrial ISRs, Catalyst Access Points (COS-APs), CGR1000 compute modules, IC3000 industrial compute gateways, and IR510 WPAN industrial routers.
Cisco has released security updates for the impa ..
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