VDB-255130 · CVE-2024-20321 · GCVE-0-2024-20321

Cisco NX-OS up to 10.4 eBGP resource consumption

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7.9	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Cisco NX-OS up to 10.4. The impacted element is an unknown function of the component eBGP. Executing a manipulation can lead to resource consumption. This vulnerability is registered as CVE-2024-20321. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco NX-OS up to 10.4 (Router Operating System). It has been declared as critical. This vulnerability affects an unknown functionality of the component eBGP. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. CVE summarizes:

A vulnerability in the External Border Gateway Protocol (eBGP) implementation of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability exists because eBGP traffic is mapped to a shared hardware rate-limiter queue. An attacker could exploit this vulnerability by sending large amounts of network traffic with certain characteristics through an affected device. A successful exploit could allow the attacker to cause eBGP neighbor sessions to be dropped, leading to a DoS condition in the network.

The weakness was published 02/28/2024 as cisco-sa-nxos-ebgp-dos-L3QCwVJ. The advisory is available at sec.cloudapps.cisco.com. This vulnerability was named CVE-2024-20321 since 11/08/2023. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Router Operating System

Vendor

Cisco

Name

NX-OS

Version

License

commercial

Website

Vendor: https://www.cisco.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.6
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/08/2023 🔍
02/28/2024 +112 days 🔍
02/28/2024 +0 days 🔍
04/03/2024 +35 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-nxos-ebgp-dos-L3QCwVJ
Status: Confirmed

CVE: CVE-2024-20321 (🔍)
GCVE (CVE): GCVE-0-2024-20321
GCVE (VulDB): GCVE-100-255130

Entryinfo

Created: 02/28/2024 17:48
Updated: 04/03/2024 07:21
Changes: 02/28/2024 17:48 (50), 04/03/2024 07:21 (15)
Complete: 🔍
Cache ID: 216::103