CVE-2021-1256
"Cisco Firepower Threat Defense CLI Directory Traversal File Overwrite Vulnerability"
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.
INFO
Published Date :
April 29, 2021, 6:15 p.m.
Last Modified :
Nov. 7, 2023, 3:27 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.2
Exploitability Score :
0.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-1256.
| URL | Resource |
|---|---|
| https://kc.mcafee.com/corporate/index?page=content&id=SB10382 | Not Applicable Third Party Advisory |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-file-overwrite-XknRjGdB | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-1256 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-1256 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Removed CVSS V3 Cisco Systems, Inc. AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H Added CVSS V3.1 Cisco Systems, Inc. AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H -
Reanalysis by [email protected]
Jun. 30, 2023
Action Type Old Value New Value Added CWE NIST CWE-22 -
Modified Analysis by [email protected]
Jul. 29, 2022
Action Type Old Value New Value Changed Reference Type https://kc.mcafee.com/corporate/index?page=content&id=SB10382 No Types Assigned https://kc.mcafee.com/corporate/index?page=content&id=SB10382 Not Applicable, Third Party Advisory Added CWE NIST CWE-552 -
CVE Modified by [email protected]
Apr. 13, 2022
Action Type Old Value New Value Added Reference https://kc.mcafee.com/corporate/index?page=content&id=SB10382 [No Types Assigned] -
Initial Analysis by [email protected]
May. 09, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:N/I:P/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-file-overwrite-XknRjGdB No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-file-overwrite-XknRjGdB Vendor Advisory Added CPE Configuration OR *cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* versions up to (including) 6.4.0 *cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* versions from (including) 6.6.0 up to (excluding) 6.6.4
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-1256 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-1256
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.08015
percentile