Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2024-20321

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
29/02/2024
Last modified:
04/03/2024

Description

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.<br /> <br /> 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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.60 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
8.60
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:nx-os:7.0\(3\)f1\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:7.0\(3\)f2\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:7.0\(3\)f2\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:7.0\(3\)f3\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:7.0\(3\)f3\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:7.0\(3\)f3\(3\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:7.0\(3\)f3\(3a\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:7.0\(3\)f3\(3c\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:7.0\(3\)f3\(4\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:7.0\(3\)f3\(5\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.2\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.2\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.2\(2t\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.2\(2v\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.2\(3\):*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools