Detections
Analytics
Cisco Firepower Threat Defense Software SIP Inspection DoS (cisco-sa-20191002-asa-ftd-sip-dos)
high Nessus Plugin ID 131183
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Synopsis
The remote device is missing a vendor-supplied security patchDescription
A denial of service (DoS) vulnerability exists in the Session Initiation Protocol (SIP) inspection module of Cisco Firepower Threat Defense (FTD) due to improper parsing of SIP messages. An unauthenticated, remote attacker can exploit this issue by sending a malicious SIP packet to an affected device which triggers an integer underflow that causes the software to try to read unmapped memory, resulting in a crash.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 CSCvp45882See Also
Plugin Details
Severity: High
ID: 131183
File Name: cisco-sa-20191002-ftd-sip-dos.nasl
Version: 1.4
Type: local
Family: CISCO
Published: 11/21/2019
Updated: 3/25/2020
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2019-12678
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: 10/2/2019
Vulnerability Publication Date: 10/2/2019
Reference Information
CVE: CVE-2019-12678