Detections
Analytics
Cisco Firepower Threat Defense Software SSL/TLS DoS (cisco-sa-asaftd-dos-4ygzLKU9)
high Nessus Plugin ID 155444
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Synopsis
The remote device is missing a vendor-supplied security patchDescription
According to its self-reported version, Cisco FTD Software is affected by a denial of service (DoS) vulnerability in the SSL/TLS message handler due to improper packet processing. An unauthenticated, remote attacker can exploit this, by sending crafted packets, in order to cause the device to reload.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 CSCvy43187See Also
http://www.nessus.org/u?29eccd9b
https://tools.cisco.com/security/center/viewErp.x?alertId=ERP-74773
Plugin Details
Severity: High
ID: 155444
File Name: cisco-sa-asaftd-dos-4ygzLKU9-ftd.nasl
Version: 1.7
Type: local
Family: CISCO
Published: 11/17/2021
Updated: 1/26/2022
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 5.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS Score Source: CVE-2021-40117
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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-2021-40117