CVE-2021-1256

 

Published at: - 29-04-2021 08:15

Last modified: - 21-11-2022 03:37

Total changes: - 5

Description

A vulnerability in the CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to overwrite files on the file system of an affected device by using directory traversal techniques. A successful exploit could cause system instability if important system files are overwritten. This vulnerability is due to insufficient validation of user input for the file path in a specific CLI command. An attacker could exploit this vulnerability by logging in to a targeted device and issuing a specific CLI command with crafted user input. A successful exploit could allow the attacker to overwrite arbitrary files on the file system of the affected device. The attacker would need valid user credentials on the device.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

 

Verification logic

 

Reference

• 20210428 Cisco Firepower Threat Defense Software Command File Overwrite Vulnerability-Vendor Advisory
• https://kc.mcafee.com/corporate/index?page=content&id=SB10382

 

Keywords

NVD

 

CVE-2021-1256

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures