Detections
Analytics
Cisco NX-OS Software Arbitrary File Overwrite (CVE-2019-1729)
medium Tenable OT Security Plugin ID 501251
Synopsis
The remote OT asset is affected by a vulnerability.Description
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 vulnerability by authenticating to the device and issuing a command at the CLI. Because an exploit could allow the attacker to overwrite any file on the disk, including system files, a denial of service (DoS) condition could occur. The attacker must have valid administrator credentials for the affected device to exploit this vulnerability.This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.
Solution
Refer to the vendor advisory.See Also
Plugin Details
Severity: Medium
ID: 501251
Version: 1.1
Type: remote
Family: Tenable.ot
Published: 7/25/2023
Updated: 7/26/2023
Supported Sensors: Tenable OT Security
Risk Information
VPR
Risk Factor: Medium
Score: 5.2
CVSS v2
Risk Factor: Medium
Base Score: 6.6
Temporal Score: 4.9
Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:C/A:C
CVSS Score Source: CVE-2019-1729
CVSS v3
Risk Factor: Medium
Base Score: 6
Temporal Score: 5.2
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:cisco:nx-os:7
Required KB Items: Tenable.ot/Cisco
Exploit Ease: No known exploits are available
Patch Publication Date: 5/15/2019
Vulnerability Publication Date: 5/15/2019
Reference Information
CVE: CVE-2019-1729
CWE: 347