Detections
Analytics
Cisco IOS XE Software Wireless Controller for the Catalyst 9000 Family DHCP Processing DoS (cisco-sa-wlc-dhcp-dos-76pCjPxK)
high Nessus Plugin ID 165591
Language:
Synopsis
The remote device is missing a vendor-supplied security patchDescription
According to its self-reported version, Cisco IOS-XE Software is affected by a denial of service (DoS) vulnerability.A remote, unauthenticated attacker can send malicious DHCP packets to a device with DHCP TLV caching enabled, causing the device to reload.
Please see the included Cisco BIDs and Cisco Security Advisory for more information.
Solution
Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvz97985See Also
http://www.nessus.org/u?fc7e9135
https://tools.cisco.com/security/center/viewErp.x?alertId=ERP-74745
Plugin Details
Severity: High
ID: 165591
File Name: cisco-sa-wlc-dhcp-dos-76pCjPxK-iosxe.nasl
Version: 1.7
Type: combined
Family: CISCO
Published: 9/30/2022
Updated: 12/2/2022
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-2022-20847
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:/o:cisco:ios_xe
Required KB Items: Host/Cisco/IOS-XE/Version, Host/Cisco/IOS-XE/Model
Exploit Ease: No known exploits are available
Patch Publication Date: 9/28/2022
Vulnerability Publication Date: 9/28/2022
Reference Information
CVE: CVE-2022-20847