CVE-2020-3403

published 2020-09-24

CVE-2020-3403: A vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, local attacker to inject a command to the underlying operating system that…

Priority P3 42 high 7.8 CVSS 3.1

AV L AC L PR L UI N S U C H I H A H

A vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, local attacker to inject a command to the underlying operating system that will execute with root privileges upon the next reboot of the device. The authenticated user must have privileged EXEC permissions on the device. The vulnerability is due to insufficient protection of values passed to a script that executes during device startup. An attacker could exploit this vulnerability by writing values to a specific file. A successful exploit could allow the attacker to execute commands with root privileges each time the affected device is restarted.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
cisco	cisco_ios_xe_software	—	—
cisco	ios_xe	—	—
cisco	ios_xe	—	—

CVSS provenance

nvd v3.1 7.8 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd v3.0 6.7 MEDIUM CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 7.2 HIGH AV:L/AC:L/Au:N/C:C/I:C/A:C

vendor_cisco 6.7 MEDIUM

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