Cisco SD-WAN DoS (cisco-sa-sdwan-dosmulti-48jJuEUP)

high Nessus Plugin ID 145708

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

According to its self-reported version, Cisco SD-WAN is affected by multiple vulnerabilities, including the following:

- A denial of service (DoS) vulnerability exists in the VPN tunneling features of Cisco SD-WAN Software due to insufficient handling of malformed packets. An unauthenticated, remote attacker can exploit this, by sending crafted packets to an affected device, to cause the device to reboot, resulting in a DoS condition of the affected system. (CVE-2021-1241)

- A denial of service (DoS) vulnerability exists in the IPSec tunnel management of Cisco SD-WAN Software due to the bounds checking in the forwarding plane of the IPSec tunnel management functionality. An unauthenticated, remote attacker can exploit this, by sending crafted IPv4 or IPv6 packets to the affected device, to cause a DoS condition. (CVE-2021-1273)

- A denial of service (DoS) vulnerability exists in the UDP connection response of Cisco SD-WAN Software due to the presence of a null dereference in vDaemon. An unauthenticated, remote attacker can exploit this, by sending crafted traffic to an affected device, to cause a DoS condition. (CVE-2021-1274)

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 CSCvq20708, CSCvt11522, CSCvt11523, CSCvt11530, CSCvu28409, and CSCvu31763.

Plugin Details

Severity: High

ID: 145708

File Name: cisco-sa-sdwan-dosmulti-48jJuEUP.nasl

Version: 1.6

Type: local

Family: CISCO

Published: 2/1/2021

Updated: 1/25/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

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-2021-1279

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:/o:cisco:sd-wan_firmware

Required KB Items: Cisco/Viptela/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 1/20/2021

Vulnerability Publication Date: 1/20/2021

Reference Information

CVE: CVE-2021-1241, CVE-2021-1273, CVE-2021-1274, CVE-2021-1278, CVE-2021-1279

CWE: 119, 20, 787

CISCO-SA: cisco-sa-sdwan-dosmulti-48jJuEUP

IAVA: 2021-A-0045

CISCO-BUG-ID: CSCvq20708, CSCvt11522, CSCvt11523, CSCvt11530, CSCvu28409, CSCvu31763

Detections

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