PT-2020-4545 · Cisco · Cisco Fxos

Published 2020-10-21 · Updated 2020-11-03 · CVE-2020-3459

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco FXOS Software (affected versions not specified)

Description A vulnerability exists due to insufficient input validation of commands supplied by the user, allowing an authenticated, local attacker to inject arbitrary commands that are executed with root privileges. The issue is related to the lack of proper neutralization of special elements used in the operating system command. An attacker could exploit this by authenticating to a device and submitting crafted input to the affected command, potentially allowing the execution of commands on the underlying operating system with root privileges.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Incorrect Default Permissions

OS Command Injection

Weakness Enumeration

CWE-276

CWE-78

Related Identifiers

BDU:2020-05057

BDU:2020-05094

CVE-2020-3459

Affected Products

Cisco Fxos

References · 6

• https://bdu.fstec.ru/vul/2020-05057 · Security Note
• https://bdu.fstec.ru/vul/2020-05094 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fxos-cmdinj-b63rwKPm · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-3459 · Security Note
• https://osv.dev/vulnerability/CVE-2020-3459 · Vendor Advisory
• https://talosintelligence.com/vulnerability_reports/TALOS-2020-1148 · Note