Detections
Analytics
Cisco Adaptive Security Appliance (ASA) IPV6 DNS DoS (cisco-sa-asaftd-ipv6-67pA658k)
high Nessus Plugin ID 137661
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Synopsis
The remote device is missing a vendor-supplied security patchDescription
According to its self-reported version, Cisco Adaptive Security Appliance (ASA) Software is affected by a denial of service (DoS) vulnerability in its DNS over IPV6 implementation due to insufficient user input validation. An unauthenticated, remote attacker can exploit this issue, by sending a specially crafted DNS IPV6 query to an affected host, to cause 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
Solution
Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCvr07419.See Also
Plugin Details
Severity: High
ID: 137661
File Name: cisco-sa-asaftd-ipv6-67pA658k-asa.nasl
Version: 1.11
Type: local
Family: CISCO
Published: 6/19/2020
Updated: 3/31/2023
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
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-2020-3191
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:adaptive_security_appliance_software
Required KB Items: Host/Cisco/ASA
Exploit Ease: No known exploits are available
Patch Publication Date: 5/5/2020
Vulnerability Publication Date: 5/6/2020
Reference Information
CVE: CVE-2020-3191