Cisco SD-WAN Solution Software Buffer Overflow Vulnerability (cisco-sa-sdbufof-h5f5VSeL)

Critical Nessus Plugin ID 139232

Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco IOS XE SD-WAN Software is affected by a buffer overflow vulnerability. This could allow an unauthenticated, remote attacker to cause a buffer overflow on an affected device.
The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to gain access to information that they are not authorized to access, make changes to the system that they are not authorized to make, and execute commands on an affected system with privileges of the root user.
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 CSCvt11538

See Also

http://www.nessus.org/u?d5771685

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvt11538

Plugin Details

Severity: Critical

ID: 139232

File Name: cisco-sa-sdbufof-h5f5VSeL.nasl

Version: 1.4

Type: local

Family: CISCO

Published: 2020/07/31

Updated: 2020/08/03

Dependencies: 67217

Risk Information

Risk Factor: Critical

CVSS Score Source: CVE-2020-3375

CVSS v2.0

Base Score: 10

Temporal Score: 7.4

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:ios_xe_sd-wan

Required KB Items: Host/Cisco/SDWAN/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/07/29

Vulnerability Publication Date: 2020/07/29

Reference Information

CVE: CVE-2020-3375

CISCO-BUG-ID: CSCvt11538

CISCO-SA: cisco-sa-sdbufof-h5f5VSeL

IAVA: 2020-A-0348

CWE: 119