Detections
Analytics
Cisco Firepower Threat Defense Software SSL Decryption Policy DoS (cisco-sa-ftd-ssl-decrypt-dos-DdyLuK6c)
high Nessus Plugin ID 149209
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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 its SSL/TLS handler component due to insufficient validation of of SSL/TLS messages. An unauthenticated, remote attacker can exploit this issue to trigger a reload of an affected device causing a DoS condition.Please see the included Cisco BIDs and Cisco Security Advisory for more information.
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 CSCvo46649See Also
http://www.nessus.org/u?c673d8e1
http://tools.cisco.com/security/center/viewErp.x?alertId=ERP-74594
Plugin Details
Severity: High
ID: 149209
File Name: cisco-sa-ftd-ssl-decrypt-dos-DdyLuK6c-ftd.nasl
Version: 1.5
Type: local
Family: CISCO
Published: 4/30/2021
Updated: 3/31/2023
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
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-2021-1402
CVSS v3
Risk Factor: High
Base Score: 8.6
Temporal Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/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: 4/28/2021
Vulnerability Publication Date: 4/28/2021
Reference Information
CVE: CVE-2021-1402