CVE-2024-20321
Cisco NX-OS eBGP Denial of Service (DoS) Vulnerability
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. 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.
INFO
Published Date :
Feb. 29, 2024, 1:43 a.m.
Last Modified :
March 4, 2024, 10:45 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.0
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-20321.
| URL | Resource |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-ebgp-dos-L3QCwVJ | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-20321 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-20321 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Mar. 04, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H Changed Reference Type https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-ebgp-dos-L3QCwVJ No Types Assigned https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-ebgp-dos-L3QCwVJ Vendor Advisory Added CWE NIST CWE-770 Added CPE Configuration OR *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\(3\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:9.2\(4\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:9.3\(1\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:9.3\(2\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:9.3\(3\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:9.3\(4\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:9.3\(5\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:9.3\(6\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:9.3\(7\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:9.3\(7a\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:9.3\(8\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:9.3\(9\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:9.3\(10\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:9.3\(11\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:9.3\(12\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.1\(1\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.1\(2\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.1\(2t\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.2\(1\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.2\(1q\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.2\(2\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.2\(3\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.2\(3t\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.2\(3v\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.2\(4\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.2\(5\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.2\(6\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.3\(1\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.3\(2\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.3\(3\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.3\(4a\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.3\(99w\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.3\(99x\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:10.4\(1\):*:*:*:*:*:*:* -
CVE Received by [email protected]
Feb. 29, 2024
Action Type Old Value New Value Added 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. 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. Added Reference Cisco Systems, Inc. https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-ebgp-dos-L3QCwVJ [No types assigned] Added CWE Cisco Systems, Inc. CWE-400 Added CVSS V3.1 Cisco Systems, Inc. AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-20321 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-20321
weaknesses.