A vulnerability in the Secure Configuration Validation functionality of Cisco FXOS Software and Cisco NX-OS Software could allow an authenticated, local attacker to run arbitrary commands at system boot time with the privileges of root. The vulnerability is due to a lack of proper validation of system files when the persistent configuration information is read from the file system. An attacker could exploit this vulnerability by authenticating to the device and overwriting the persistent configuration storage with malicious executable files. An exploit could allow the attacker to run arbitrary commands at system startup and those commands will run as the root user. The attacker must have valid administrative credentials for the device.

A vulnerability in the Secure Configuration Validation functionality of Cisco FXOS Software and Cisco NX-OS Software could allow an authenticated, local attacker to run arbitrary commands at system boot time with the privileges of root. The vulnerability is due to a lack of proper validation of system files when the persistent configuration information is read from the file system. An attacker could exploit this vulnerability by authenticating to the device and overwriting the persistent configuration storage with malicious executable files. An exploit could allow the attacker to run arbitrary commands at system startup and those commands will run as the root user. The attacker must have valid administrative credentials for the device.

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According to its self-reported version, Cisco FXOS Software is affected by a configuration bypass vulnerability due to a lack of proper validation of system files when the persistent configuration information is read from the file system. An authenticated, local attacker can exploit this, by authenticating to the device and overwriting the persistent configuration storage with malicious executable files. An exploit allows the attacker to run arbitrary commands at system startup with root privileges.

Please see the included Cisco BIDs and Cisco Security Advisory for more information

According to its self-reported version, Cisco NX-OS Software is affected by a configuration bypass vulnerability due to a lack of proper validation of system files when the persistent configuration information is read from the file system. An authenticated, local attacker can exploit this, by authenticating to the device and overwriting the persistent configuration storage with malicious executable files. An exploit allows the attacker to run arbitrary commands at system startup with root privileges.

Please see the included Cisco BIDs and Cisco Security Advisory for more information

ID	Name	Product	Family	Severity
501246	Cisco FXOS and NX-OS Software Secure Configuration Bypass (CVE-2019-1728)	Tenable OT Security	Tenable.ot	medium
132720	Cisco FXOS Software Secure Configuration Bypass (cisco-sa-20190515-nxos-conf-bypass)	Nessus	CISCO	medium
132719	Cisco NX-OS Software Secure Configuration Bypass (cisco-sa-20190515-nxos-conf-bypass)	Nessus	CISCO	medium

Detections

Analytics

CVE-2019-1728

medium

Tenable Plugins

medium

medium

medium