Detections
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Cisco IOS XR Software Cisco Discovery Protocol Remote Code Execution Vulnerability (cisco-sa-20200205-iosxr-cdp-rce)

high Nessus Plugin ID 133603

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, the Cisco IOS XR Software is affected by a remote code execution vulnerability within the Cisco Discovery Protocol due to improper validation of string input. An unauthenticated, adjacent attacker can exploit this to bypass authentication and execute arbitrary commands with root privileges.

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 CSCvr09190.

See Also

http://www.nessus.org/u?b9623904

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvr09190

Plugin Details

Severity: High

ID: 133603

File Name: cisco-sa-20200205-iosxr-cdp-rce.nasl

Version: 1.11

Type: combined

Family: CISCO

Published: 2/10/2020

Updated: 4/25/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.9

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

CVSS Score Source: CVE-2020-3118

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.2

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

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

Vulnerability Information

CPE: cpe:/o:cisco:ios_xr

Required KB Items: Host/Cisco/IOS-XR/Version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/5/2020

Vulnerability Publication Date: 2/5/2020

CISA Known Exploited Vulnerability Due Dates: 5/3/2022

Reference Information

CVE: CVE-2020-3118

CISCO-SA: cisco-sa-20200205-iosxr-cdp-rce

IAVA: 2020-A-0041-S

CISCO-BUG-ID: CSCvr09190