Detections
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Cisco Firepower Threat Defense Software CLI Arbitrary File Write (cisco-sa-ftd-file-write-SHVcmQVc)

medium Nessus Plugin ID 154853

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco FTD Software is affected by a vulnerability due to incomplete validation of user input for a specific CLI command. An authenticated, local attacker can exploit this, by authenticating to the device with administrative privileges, in order to overwrite or append arbitrary data to system files with root privileges.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvy41757

See Also

http://www.nessus.org/u?ad9928ad

https://tools.cisco.com/security/center/viewErp.x?alertId=ERP-74773

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvy41757

Plugin Details

Severity: Medium

ID: 154853

File Name: cisco-sa-ftd-file-write-SHVcmQVc-ftd.nasl

Version: 1.8

Type: local

Family: CISCO

Published: 11/3/2021

Updated: 3/31/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:C/A:C

CVSS Score Source: CVE-2021-34761

CVSS v3

Risk Factor: Medium

Base Score: 6

Temporal Score: 5.2

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:cisco:firepower_threat_defense

Required KB Items: installed_sw/Cisco Firepower Threat Defense

Exploit Ease: No known exploits are available

Patch Publication Date: 10/27/2021

Vulnerability Publication Date: 10/27/2021

Reference Information

CVE: CVE-2021-34761

CWE: 73

CISCO-SA: cisco-sa-ftd-file-write-SHVcmQVc

IAVA: 2021-A-0526-S

CISCO-BUG-ID: CSCvy41757