6
CVSSv3

CVE-2021-1256

Published: 29/04/2021 Updated: 07/11/2023
CVSS v2 Base Score: 3.6 | Impact Score: 4.9 | Exploitability Score: 3.9
CVSS v3 Base Score: 6 | Impact Score: 5.2 | Exploitability Score: 0.8
VMScore: 320
Vector: AV:L/AC:L/Au:N/C:N/I:P/A:P

Vulnerability Summary

A vulnerability in the CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local malicious user 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 malicious user to overwrite arbitrary files on the file system of the affected device. The attacker would need valid user credentials on the device.

Vulnerability Trend

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cisco firepower threat defense

Vendor Advisories

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 ins ...