CVE-2021-34761

Published on: 10/27/2021 12:00:00 AM UTC

Last Modified on: 10/27/2022 04:44:00 PM UTC

CVE-2021-34761 - advisory for cisco-sa-ftd-file-write-SHVcmQVc

Source: Mitre Source: NIST CVE.ORG Print: PDF PDF
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

Certain versions of Firepower Management Center Virtual Appliance from Cisco contain the following vulnerability:

A vulnerability in Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to overwrite or append arbitrary data to system files using root-level privileges. The attacker must have administrative credentials on the device. This vulnerability is due to incomplete validation of user input for a specific CLI command. An attacker could exploit this vulnerability by authenticating to the device with administrative privileges and issuing a CLI command with crafted user parameters. A successful exploit could allow the attacker to overwrite or append arbitrary data to system files using root-level privileges.

  • CVE-2021-34761 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as MEDIUM severity.
  • The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
  • Affected Vendor/Software: URL Logo Cisco - Cisco Firepower Threat Defense Software version n/a

CVSS3 Score: 6 - MEDIUM

Attack
Vector ⓘ		 Attack
Complexity		 Privileges
Required		 User
Interaction
LOCAL LOW HIGH NONE
Scope Confidentiality
Impact		 Integrity
Impact		 Availability
Impact
UNCHANGED NONE HIGH HIGH

CVSS2 Score: 6.6 - MEDIUM

Access
Vector ⓘ		 Access
Complexity		 Authentication
LOCAL LOW NONE
Confidentiality
Impact		 Integrity
Impact		 Availability
Impact
NONE COMPLETE COMPLETE

CVE References

Description Tags ⓘ Link
Cisco Firepower Threat Defense Software CLI Arbitrary File Write Vulnerability tools.cisco.com
text/html
 URL Logo CISCO 20211027 Cisco Firepower Threat Defense Software CLI Arbitrary File Write Vulnerability
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Related QID Numbers

  • 317098 Cisco Firepower Threat Defense (FTD) Software Command Line Interface (CLI) Arbitrary File Write Vulnerability (cisco-sa-ftd-file-write-SHVcmQVc)

Exploit/POC from Github

This repository contains a collection of data files on known Common Vulnerabilities and Exposures (CVEs). Each file i…

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationCiscoFirepower Management Center Virtual Appliance6.2.3AllAllAll
ApplicationCiscoFirepower Management Center Virtual Appliance6.4.0AllAllAll
ApplicationCiscoFirepower Management Center Virtual Appliance6.6.1AllAllAll
ApplicationCiscoFirepower Management Center Virtual Appliance6.7.0AllAllAll
ApplicationCiscoFirepower Management Center Virtual Appliance7.0.0AllAllAll
ApplicationCiscoFirepower Management Center Virtual Appliance7.1.0AllAllAll
ApplicationCiscoFirepower Threat DefenseAllAllAllAll
ApplicationCiscoSourcefire Defense Center6.2.3AllAllAll
ApplicationCiscoSourcefire Defense Center6.4.0AllAllAll
ApplicationCiscoSourcefire Defense Center6.6.1AllAllAll
ApplicationCiscoSourcefire Defense Center6.7.0AllAllAll
ApplicationCiscoSourcefire Defense Center7.0.0AllAllAll
ApplicationCiscoSourcefire Defense Center7.1.0AllAllAll
  • cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.2.3:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.4.0:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.6.1:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.7.0:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:7.0.0:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:7.1.0:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:sourcefire_defense_center:6.2.3:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:sourcefire_defense_center:6.4.0:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:sourcefire_defense_center:6.6.1:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:sourcefire_defense_center:6.7.0:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:sourcefire_defense_center:7.0.0:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:sourcefire_defense_center:7.1.0:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
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