Cisco SD-WAN vEdge Software UDP Packet Validation DoS (cisco-sa-sdw-vedos-KqFfhps3)

medium Nessus Plugin ID 207742

Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco SD-WAN Viptela Software is affected by a vulnerability.

- A vulnerability in the UDP packet validation code of Cisco SD-WAN vEdge Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected system.
This vulnerability is due to incorrect handling of a specific type of malformed UDP packet. An attacker in a machine-in-the-middle position could exploit this vulnerability by sending crafted UDP packets to an affected device. A successful exploit could allow the attacker to cause the device to reboot, resulting in a DoS condition on the affected system. (CVE-2024-20496)

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCwc99618, CSCwd85135

See Also

http://www.nessus.org/u?8f7093e1

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwc99618

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwd85135

Plugin Details

Severity: Medium

ID: 207742

File Name: cisco-sa-sdw-vedos-KqFfhps3.nasl

Version: 1.2

Type: local

Family: CISCO

Published: 9/25/2024

Updated: 10/4/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

Vector: CVSS2#AV:A/AC:H/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2024-20496

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:A/AC:H/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: x-cpe:/a:cisco:vedge_cloud_router, x-cpe:/a:cisco:sd-wan_vedge, cpe:/o:cisco:sd-wan_firmware

Required KB Items: Cisco/Viptela/Version, Cisco/Viptela/Model

Exploit Ease: No known exploits are available

Patch Publication Date: 9/25/2024

Vulnerability Publication Date: 9/25/2024

Reference Information

CVE: CVE-2024-20496

CWE: 787

CISCO-SA: cisco-sa-sdw-vedos-KqFfhps3

IAVA: 2024-A-0601

CISCO-BUG-ID: CSCwc99618, CSCwd85135