Detections
Analytics
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 patchDescription
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 CSCvu15801See Also
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
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-2020-3555
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, cpe:/o: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