CVE-2024-20320: High severity cisco ios xrv 9000 vulnerability

Published Mar 13, 2024

Updated

A vulnerability in the SSH client feature of Cisco IOS XR Software for Cisco 8000 Series Routers and Cisco Network Convergence System (NCS) 540 Series and 5700 Series Routers could allow an authenticated, local attacker to elevate privileges on an affected device. This vulnerability is due to insufficient validation of arguments that are included with the SSH client CLI command. An attacker with low-privileged access to an affected device could exploit this vulnerability by issuing a crafted SSH client command to the CLI. A successful exploit could allow the attacker to elevate privileges to root on the affected device.

Affected Software

86 affected components

Cisco IOS XR Software

Cisco 8000 Series Routers

Cisco Network Convergence System (NCS) 540 Series

Cisco Network Convergence System (NCS) 5700 Series

All of the following

Any of the following

Cisco IOS XR=7.2.1

Cisco IOS XR=7.2.2

Cisco IOS XR=7.3.1

Cisco IOS XR=7.3.2

Cisco IOS XR=7.3.3

Cisco IOS XR=7.3.5

Cisco IOS XR=7.3.15

Cisco IOS XR=7.4.1

Cisco IOS XR=7.4.2

Cisco IOS XR=7.5.1

Cisco IOS XR=7.5.2

Cisco IOS XR=7.5.3

Cisco IOS XR=7.5.4

Cisco IOS XR=7.5.5

Cisco IOS XR=7.6.1

Cisco IOS XR=7.6.2

Cisco IOS XR=7.7.1

Cisco IOS XR=7.7.2

Cisco IOS XR=7.7.21

Cisco IOS XR=7.8.1

Cisco IOS XR=7.8.2

Cisco IOS XR=7.9.1

Cisco IOS XR=7.9.2

Cisco IOS XR=7.9.21

Cisco IOS XR=7.10.1

Any of the following

Cisco Ios Xrd Control Plane

Cisco Ios Xrd Vrouter

Cisco 8011-4g24y4h-i

Cisco 8101-32fh

Cisco 8101-32fh-o

Cisco 8101-32h-o

Cisco 8102-28fh-dpu-o

Cisco 8102-64h

Cisco 8102-64h-o

Cisco 8111-32eh-o

Cisco 8122-64eh-o

Cisco 8122-64ehf-o

Cisco 8201

Cisco 8201-24h8fh

Cisco 8201-32fh

Cisco 8201-32fh-o

Cisco 8202

Cisco 8202-32fh-m

Cisco 8212-48fh-m

Cisco 8404

Cisco 8501-sys-mt

Cisco 8608

Cisco 8700

Cisco 8711-32fh-m

Cisco 8712-mod-m

Cisco 8804

Cisco 8808

Cisco 8812

Cisco 8818

Cisco Ncs 540-12z20g-sys-a

Cisco Ncs 540-12z20g-sys-d

Cisco Ncs 540-24q2c2dd-sys

Cisco Ncs 540-24q8l2dd-sys

Cisco Ncs 540-24z8q2c-sys

Cisco Ncs 540-28z4c-sys-a

Cisco Ncs 540-28z4c-sys-d

Cisco Ncs 540-6z14s-sys-d

Cisco Ncs 540-6z18g-sys-a

Cisco Ncs 540-6z18g-sys-d

Cisco Ncs 540-acc-sys

Cisco Ncs 540-fh-agg

Cisco Ncs 540-fh-csr-sys

Cisco Ncs 540x-12z16g-sys-a

Cisco Ncs 540x-12z16g-sys-d

Cisco Ncs 540x-16z4g8q2c-a

Cisco Ncs 540x-16z4g8q2c-d

Cisco Ncs 540x-16z8q2c-d

Cisco Ncs 540x-4z14g2q-a

Cisco Ncs 540x-4z14g2q-d

Cisco Ncs 540x-6z18g-sys-a

Cisco Ncs 540x-6z18g-sys-d

Cisco Ncs 540x-8z16g-sys-a

Cisco Ncs 540x-8z16g-sys-d

Cisco Ncs 540x-acc-sys

Cisco Ncs 57b1-5dse-sys

Cisco Ncs 57b1-6d24-sys

Cisco Ncs 57c1-48q6-sys

Event History

Mar 13, 2024

CVE Published

via MITRE·04:41 PM

Data Sourced

via MITRE·04:41 PM

DescriptionSeverityWeakness

Data Sourced

via NVD·05:15 PM

DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

What is the severity of CVE-2024-20320?

CVE-2024-20320 has a high severity rating due to its potential for privilege escalation by authenticated local attackers.

How do I fix CVE-2024-20320?

To remediate CVE-2024-20320, upgrade to the latest version of Cisco IOS XR Software or apply the available patches provided by Cisco.

Who is affected by CVE-2024-20320?

CVE-2024-20320 affects Cisco 8000 Series Routers and Cisco Network Convergence System (NCS) 540 and 5700 Series Routers running vulnerable versions of IOS XR Software.

What type of attack can exploit CVE-2024-20320?

CVE-2024-20320 can be exploited by an authenticated, local attacker seeking to elevate their privileges on the affected devices.

When was CVE-2024-20320 disclosed?

CVE-2024-20320 was disclosed as part of a security advisory by Cisco related to vulnerabilities in their networking products.