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CVE-2021-1256

CVE information

Published

1 year ago

Last Modified

1 month ago

CVSSv2.0 Severity

Low

CVSSv3.1 Severity

Medium

Impact Analysis

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..

CVSSv2.0 Score

Severity
Low
Base Score
3.6/10
Exploit Score
3.9/10
Access Vector
Local
Access Complexity
Low
Authentication Required
None
Impact Score
4.9/10
Confidentiality Impact
None
Availability Impact
Partial
Integrity Impact
Partial

CVSSv3.1 Score

Severity
Medium
Base Score
6/10
Exploit Score
0.8/10
Access Vector
Local
Access Complexity
Low
Privileges Required
High
Impact Score
5.2/10
Confidentiality Impact
None
Availability Impact
High
Integrity Impact
High
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
  Yes
6.6.0 6.6.4
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
  Yes
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