CVE-2024-20321
Quick assessment
Affected
Cisco Cisco NX-OS Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Cisco NX-OS Software是美国思科（Cisco）公司的一套交换机使用的数据中心级操作系统软件。 Cisco NX-OS Software存在安全漏洞。攻击者利用该漏洞导致系统拒绝服务。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2024-20321
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco NX-OS Software 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco NX-OS Software是美国思科（Cisco）公司的一套交换机使用的数据中心级操作系统软件。 Cisco NX-OS Software存在安全漏洞。攻击者利用该漏洞导致系统拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco NX-OS Software | 7.0(3)F1(1) | - |
|
II. Public POCs for CVE-2024-20321
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2024-20321 (1)
Same Patch Batch · Cisco · 2024-02-28 · 5 CVEs total
| CVE-2024-20267 | 8.6 HIGH | Cisco NX-OS Software 安全漏洞 |
| CVE-2024-20294 | 6.6 MEDIUM | Cisco NX-OS Software和Cisco FXOS Software安全漏洞 |
| CVE-2024-20291 | 5.8 MEDIUM | Cisco Nexus 3000 Series Switches 安全漏洞 |
| CVE-2024-20344 | 5.3 MEDIUM | Cisco UCS 6400 Series Fabric Interconnects 安全漏洞 |
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V. Comments for CVE-2024-20321
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