CVE-2024-20321 (GCVE-0-2024-20321)
Vulnerability from cvelistv5 – Published: 2024-02-28 16:14 – Updated: 2024-08-16 20:12
VLAI
EPSS
VEX
Summary
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.
Severity
8.6 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-03-01 16:27 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Cisco | Cisco NX-OS Software |
Affected:
7.0(3)F1(1)
Affected: 7.0(3)F2(1) Affected: 7.0(3)F2(2) Affected: 7.0(3)F3(1) Affected: 7.0(3)F3(2) Affected: 7.0(3)F3(3) Affected: 7.0(3)F3(3a) Affected: 7.0(3)F3(4) Affected: 7.0(3)F3(3c) Affected: 7.0(3)F3(5) Affected: 9.2(1) Affected: 9.2(2) Affected: 9.2(2t) Affected: 9.2(3) Affected: 9.2(4) Affected: 9.2(2v) Affected: 9.3(1) Affected: 9.3(2) Affected: 9.3(3) Affected: 9.3(4) Affected: 9.3(5) Affected: 9.3(6) Affected: 9.3(7) Affected: 9.3(7a) Affected: 9.3(8) Affected: 9.3(9) Affected: 9.3(10) Affected: 9.3(11) Affected: 9.3(12) Affected: 10.1(1) Affected: 10.1(2) Affected: 10.1(2t) Affected: 10.2(1) Affected: 10.2(1q) Affected: 10.2(2) Affected: 10.2(3) Affected: 10.2(3t) Affected: 10.2(4) Affected: 10.2(5) Affected: 10.2(3v) Affected: 10.2(6) Affected: 10.3(1) Affected: 10.3(2) Affected: 10.3(3) Affected: 10.3(99w) Affected: 10.3(99x) Affected: 10.3(4a) Affected: 10.4(1) |
guessed | |
| cisco | nx-os |
Affected:
7.0\(3\)f1\(1\)
Affected: 7.0\(3\)f2\(1\) Affected: 7.0\(3\)f2\(2\) Affected: 7.0\(3\)f3\(1\) Affected: 7.0\(3\)f3\(2\) Affected: 7.0\(3\)f3\(3\) Affected: 7.0\(3\)f3\(3a\) Affected: 7.0\(3\)f3\(4\) Affected: 7.0\(3\)f3\(3c\) Affected: 7.0\(3\)f3\(5\) Affected: 9.2\(1\) Affected: 9.2\(2\) Affected: 9.2\(2t\) Affected: 9.2\(3\) Affected: 9.2\(4\) Affected: 9.2\(2v\) Affected: 9.3\(1\) Affected: 9.3\(2\) Affected: 9.3\(3\) Affected: 9.3\(4\) Affected: 9.3\(5\) Affected: 9.3\(6\) Affected: 9.3\(7\) Affected: 9.3\(7a\) Affected: 9.3\(8\) Affected: 9.3\(9\) Affected: 9.3\(10\) Affected: 9.3\(11\) Affected: 9.3\(12\) Affected: 10.1\(1\) Affected: 10.1\(2\) Affected: 10.1\(2t\) Affected: 10.2\(1\) Affected: 10.2\(1q\) Affected: 10.2\(2\) Affected: 10.2\(3\) Affected: 10.2\(3t\) Affected: 10.2\(4\) Affected: 10.2\(5\) Affected: 10.2\(3v\) Affected: 10.2\(6\) Affected: 10.3\(1\) Affected: 10.3\(2\) Affected: 10.3\(3\) Affected: 10.3\(99w\) Affected: 10.3\(99x\) Affected: 10.3\(4a\) Affected: 10.4\(1\) 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\(4\):*:*:*:*:*:*:* cpe:2.3:o:cisco:nx-os:7.0\(3\)f3\(3c\):*:*:*:*:*:*:* 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\(3\):*:*:*:*:*:*:* cpe:2.3:o:cisco:nx-os:9.2\(4\):*:*:*:*:*:*:* cpe:2.3:o:cisco:nx-os:9.2\(2v\):*:*:*:*:*:*:* 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\(4\):*:*:*:*:*:*:* cpe:2.3:o:cisco:nx-os:10.2\(5\):*:*:*:*:*:*:* cpe:2.3:o:cisco:nx-os:10.2\(3v\):*:*:*:*:*:*:* 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\(99w\):*:*:*:*:*:*:* cpe:2.3:o:cisco:nx-os:10.3\(99x\):*:*:*:*:*:*:* cpe:2.3:o:cisco:nx-os:10.3\(4a\):*:*:*:*:*:*:* cpe:2.3:o:cisco:nx-os:10.4\(1\):*:*:*:*:*:*:* |
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"value": "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.\r\n\r 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."
},
{
"lang": "es",
"value": "Una vulnerabilidad en la implementaci\u00f3n del protocolo de puerta de enlace de frontera externa (eBGP) del software Cisco NX-OS podr\u00eda permitir que un atacante remoto no autenticado cause una condici\u00f3n de denegaci\u00f3n de servicio (DoS) en un dispositivo afectado. Esta vulnerabilidad existe porque el tr\u00e1fico eBGP est\u00e1 asignado a una cola limitadora de velocidad de hardware compartida. Un atacante podr\u00eda aprovechar esta vulnerabilidad enviando grandes cantidades de tr\u00e1fico de red con determinadas caracter\u00edsticas a trav\u00e9s de un dispositivo afectado. Un exploit exitoso podr\u00eda permitir al atacante provocar la ca\u00edda de las sesiones vecinas de eBGP, lo que provocar\u00eda una condici\u00f3n DoS en la red."
}
],
"id": "CVE-2024-20321",
"lastModified": "2026-06-17T07:06:25.593",
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"confidentialityImpact": "NONE",
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"privilegesRequired": "NONE",
"scope": "CHANGED",
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"redhat_vex": {
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},
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"metrics": [
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],
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],
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}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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