Cisco Firepower Threat Defense Software SIP DoS (cisco-sa-asaftd-sipdos-3DGvdjvg)

high Nessus Plugin ID 149355
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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, the SIP inspection process of Cisco Firepower Threat Defense (FTD) Software is affected by denial of service vulnerability due to a watchdog timeout and crash during the cleanup of threads that are associated with a SIP connection that is being deleted from the connection list. An unauthenticated, remote attacker can exploit this by sending a high rate of crafted SIP traffic through an affected device. A successful exploit could allow the attacker to cause a watchdog timeout and crash, resulting in a crash and reload of the affected device.

Please see the included Cisco BID 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 CSCvu15801

See Also

http://www.nessus.org/u?421e590f

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvu15801

Plugin Details

Severity: High

ID: 149355

File Name: cisco-sa-asaftd-sipdos-3DGvdjvg-ftd.nasl

Version: 1.4

Type: local

Family: CISCO

Published: 5/7/2021

Updated: 5/10/2021

Dependencies: cisco_enumerate_firepower.nbin

Risk Information

CVSS Score Source: CVE-2020-3555

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

Temporal Vector: E:U/RL:OF/RC:C

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: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:firepower_threat_defense, 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: 10/21/2020

Vulnerability Publication Date: 10/21/2020

Reference Information

CVE: CVE-2020-3555