CVE-2019-1604

Name of the Vulnerable Software and Affected Versions Cisco NX-OS Software versions prior to 6.2(22) Cisco NX-OS Software versions prior to 8.2(3) Cisco NX-OS Software versions prior to 8.3(2) Cisco NX-OS Software versions prior to 7.0(3)I7(4) on Nexus 3000 Series Switches Cisco NX-OS Software versions prior to 7.0(3)I7(4) on Nexus 3500 Platform Switches Cisco NX-OS Software versions prior to 7.0(3)F3(5) on Nexus 3600 Platform Switches Cisco NX-OS Software versions prior to 7.0(3)I7(4) on Nexus 9000 Series Switches-Standalone Cisco NX-OS Software versions prior to 7.0(3)F3(5) on Nexus 9500 R-Series Line Cards and Fabric Modules Nexus 7000 and 7700 Series Switches versions prior to 6.2(22), 8.2(3), and 8.3(2)

Description A vulnerability in the user account management interface of Cisco NX-OS Software could allow an authenticated, local attacker to gain elevated privileges on an affected device. The vulnerability is due to an incorrect authorization check of user accounts and their associated Group ID (GID). An attacker could exploit this vulnerability by taking advantage of a logic error that will permit the use of higher privileged commands than what is necessarily assigned. A successful exploit could allow an attacker to execute commands with elevated privileges on the underlying Linux shell of an affected device.

Recommendations For Nexus 7000 and 7700 Series Switches versions prior to 6.2(22), 8.2(3), and 8.3(2), update to a fixed version. For Nexus 3000 Series Switches versions prior to 7.0(3)I7(4), update to a fixed version. For Nexus 3500 Platform Switches versions prior to 7.0(3)I7(4), update to a fixed version. For Nexus 3600 Platform Switches versions prior to 7.0(3)F3(5), update to a fixed version. For Nexus 9000 Series Switches-Standalone versions prior to 7.0(3)I7(4), update to a fixed version. For Nexus 9500 R-Series Line Cards and Fabric Modules versions prior to 7.0(3)F3(5), update to a fixed version. As a temporary workaround, consider restricting access to the user account management interface until a patch is available.