CVE-2024-20446 (GCVE-0-2024-20446)
Vulnerability from cvelistv5 – Published: 2024-08-28 16:31 – Updated: 2024-08-28 18:49
VLAI
EPSS
VEX
Title
Cisco NX-OS Software DHCPv6 Relay Agent Denial of Service Vulnerability
Summary
A vulnerability in the DHCPv6 relay agent 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 is due to improper handling of specific fields in a DHCPv6 RELAY-REPLY message. An attacker could exploit this vulnerability by sending a crafted DHCPv6 packet to any IPv6 address that is configured on an affected device. A successful exploit could allow the attacker to cause the dhcp_snoop process to crash and restart multiple times, causing the affected device to reload and resulting in a DoS condition.
Severity
8.6 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-08-28 18:45 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
Impacted products
5 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Cisco | Cisco NX-OS Software |
Affected:
10.2(1)
Affected: 10.2(1q) Affected: 9.3(9) Affected: 8.2(11) |
guessed | |
| cisco | nx-os |
Affected:
10.2\(1\)
cpe:2.3:o:cisco:nx-os:10.2\(1\):*:*:*:*:*:*:* |
||
| cisco | nx-os |
Affected:
10.2\(1q\)
cpe:2.3:o:cisco:nx-os:10.2\(1q\):*:*:*:*:*:*:* |
||
| cisco | nx-os |
Affected:
9.3\(9\)
cpe:2.3:o:cisco:nx-os:9.3\(9\):*:*:*:*:*:*:* |
||
| cisco | nx-os |
Affected:
8.2\(11\)
cpe:2.3:o:cisco:nx-os:8.2\(11\):*:*:*:*:*:*:* |
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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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