
CVE-2019-1727 – Cisco NX-OS Software Python Parser Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2019-1727
15 May 2019 — A vulnerability in the Python scripting subsystem of Cisco NX-OS Software could allow an authenticated, local attacker to escape the Python parser and issue arbitrary commands to elevate the attacker's privilege level. The vulnerability is due to insufficient sanitization of user-supplied parameters that are passed to certain Python functions in the scripting sandbox of the affected device. An attacker could exploit this vulnerability to escape the scripting sandbox and execute arbitrary commands to elevate... • http://www.securityfocus.com/bid/108341 • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CWE-264: Permissions, Privileges, and Access Controls •

CVE-2019-1728 – Cisco FXOS and NX-OS Software Secure Configuration Bypass Vulnerability
https://notcve.org/view.php?id=CVE-2019-1728
15 May 2019 — 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 stora... • http://www.securityfocus.com/bid/108391 • CWE-347: Improper Verification of Cryptographic Signature •

CVE-2019-1729 – Cisco NX-OS Software Arbitrary File Overwrite Vulnerability
https://notcve.org/view.php?id=CVE-2019-1729
15 May 2019 — A vulnerability in the CLI implementation of a specific command used for image maintenance for Cisco NX-OS Software could allow an authenticated, local attacker to overwrite any file on the file system including system files. These file overwrites by the attacker are accomplished at the root privilege level. The vulnerability occurs because there is no verification of user-input parameters and or digital-signature verification for image files when using a specific CLI command. An attacker could exploit this... • http://www.securityfocus.com/bid/108378 • CWE-20: Improper Input Validation CWE-347: Improper Verification of Cryptographic Signature •

CVE-2019-1726 – Cisco NX-OS Software CLI Bypass to Internal Service Vulnerability
https://notcve.org/view.php?id=CVE-2019-1726
15 May 2019 — A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local attacker to access internal services that should be restricted on an affected device, such as the NX-API. The vulnerability is due to insufficient validation of arguments passed to a certain CLI command. An attacker could exploit this vulnerability by including malicious input as the argument to the affected command. A successful exploit could allow the attacker to bypass intended restrictions and access internal services... • http://www.securityfocus.com/bid/108409 • CWE-20: Improper Input Validation CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •