CWE
552
Advisory Published

cisco-sa-ftd-file-overwrite-XknRjGdB: Cisco Firepower Threat Defense Software Command File Overwrite Vulnerability

First published: Wed Apr 28 2021(Updated: )

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. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-file-overwrite-XknRjGdB

Credit: This vulnerability was found by Ilkin Gasimov Cisco during internal security testing

Affected SoftwareAffected VersionHow to fix
Cisco Firepower Management Center (FMC) and Firepower Threat Defense (FTD) Software

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of cisco-sa-ftd-file-overwrite-XknRjGdB?

    The severity of cisco-sa-ftd-file-overwrite-XknRjGdB is classified as high due to the potential for authenticated attackers to cause system instability.

  • How do I fix cisco-sa-ftd-file-overwrite-XknRjGdB?

    To fix cisco-sa-ftd-file-overwrite-XknRjGdB, update your Cisco Firepower Threat Defense Software to the latest version provided by Cisco.

  • Who is affected by cisco-sa-ftd-file-overwrite-XknRjGdB?

    Cisco Firepower Threat Defense Software users may be affected by the cisco-sa-ftd-file-overwrite-XknRjGdB vulnerability.

  • What causes the cisco-sa-ftd-file-overwrite-XknRjGdB vulnerability?

    The cisco-sa-ftd-file-overwrite-XknRjGdB vulnerability is caused by insufficient input validation in the CLI, allowing directory traversal techniques for file overwriting.

  • What are the implications of the cisco-sa-ftd-file-overwrite-XknRjGdB vulnerability?

    Exploiting the cisco-sa-ftd-file-overwrite-XknRjGdB vulnerability can lead to system instability and unauthorized file changes on the affected device.

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