CVE-2019-1732: A vulnerability in the Remote Package Manager (RPM) subsystem of Cisco NX-OS Software could allow an authenticated, local attacker with administrator…

medium6.4CVSS 3.1

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A vulnerability in the Remote Package Manager (RPM) subsystem of Cisco NX-OS Software could allow an authenticated, local attacker with administrator credentials to leverage a time-of-check, time-of-use (TOCTOU) race condition to corrupt local variables, which could lead to arbitrary command injection. The vulnerability is due to the lack of a proper locking mechanism on critical variables that need to stay static until used. An attacker could exploit this vulnerability by authenticating to an affected device and issuing a set of RPM-related CLI commands. A successful exploit could allow the attacker to perform arbitrary command injection. The attacker would need administrator credentials for the targeted device.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
cisco	cisco_nx-os_software	>= unspecified < 8.3(1)	8.3(1)
cisco	nx-os	—	—
cisco	nx-os	>= 7.0\(3\)i4 < 7.0\(3\)i7\(4\)	7.0\(3\)i7\(4\)
cisco	nx_os	>= 7.0\(3\) < 7.0\(3\)f3\(5\)	7.0\(3\)f3\(5\)