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CVE-2024-6437— On affected platforms running Arista EOS with one of the following features configured to redirect IP traffic to a next hop: policy-based routing (PBR), BGP Flowspec, or interface traffic policy -- certain IP traffic such as IPv4 packets with IP options ma

Quick assessment

Affected
Arista Networks EOS-Policy Based Routing (PBR)
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.

Arista EOS是美国Arista公司的一个完全可编程的、高度模块化的、基于Linux的网络操作系统。 Arista EOS存在安全漏洞，该漏洞源于在运行 Arista EOS 的受影响平台上，如果将部分功能配置为将 IP 流量重定向到下一跳可能会绕过该功能设置的下一跳操作，并由内核进行慢速路径转发（FIB 路由），因为数据包被困在 CPU 中，而不是遵循重定向操作的目的地。

CVSS 5.8 · Medium EPSS 0.51% · P41
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I. Basic Information for CVE-2024-6437

Vulnerability Information
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Vulnerability Title
On affected platforms running Arista EOS with one of the following features configured to redirect IP traffic to a next hop: policy-based routing (PBR), BGP Flowspec, or interface traffic policy -- certain IP traffic such as IPv4 packets with IP options ma
Source: CVE Program / CVE List V5
Vulnerability Description
On affected platforms running Arista EOS with one of the following features configured to redirect IP traffic to a next hop: policy-based routing (PBR), BGP Flowspec, or interface traffic policy -- certain IP traffic such as IPv4 packets with IP options may bypass the feature's set nexthop action and be slow-path forwarded (FIB routed) by the kernel as the packets are trapped to the CPU instead of following the redirect action's destination.
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:L
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Arista EOS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Arista EOS是美国Arista公司的一个完全可编程的、高度模块化的、基于Linux的网络操作系统。 Arista EOS存在安全漏洞，该漏洞源于在运行 Arista EOS 的受影响平台上，如果将部分功能配置为将 IP 流量重定向到下一跳可能会绕过该功能设置的下一跳操作，并由内核进行慢速路径转发（FIB 路由），因为数据包被困在 CPU 中，而不是遵循重定向操作的目的地。
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
Arista Networks EOS-Policy Based Routing (PBR) 4.32.0F ~ 4.32.1F -
Arista Networks EOS - BGP Flowspec 4.32.0F ~ 4.32.1F -
Arista Networks EOS - Interface Traffic Policy 4.32.0F ~ 4.32.1F -

II. Public POCs for CVE-2024-6437

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III. Intelligence Information for CVE-2024-6437

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Vendor Advisories for CVE-2024-6437 (1)

Same Patch Batch · Arista Networks · 2025-01-10 · 13 CVEs total

CVE-2024-9188 8.8 HIGH Specially constructed queries cause cross platform scripting leaking administrator tokens
CVE-2024-47519 8.3 HIGH Backup uploads to ETM subject to man-in-the-middle interception
CVE-2024-9134 8.3 HIGH Multiple SQL Injection vulnerabilities exist in the reporting application. A user with ad
CVE-2024-9132 8.1 HIGH The administrator is able to configure an insecure captive portal script
CVE-2024-47520 7.6 HIGH A user with advanced report application access rights can perform actions for which they a
CVE-2024-9131 7.2 HIGH A user with administrator privileges can perform command injection
CVE-2024-47517 6.8 MEDIUM Expired and unusable administrator authentication tokens can be revealed by units that hav
CVE-2024-9133 6.6 MEDIUM A user with administrator privileges is able to retrieve authentication tokens
CVE-2024-5872 6.5 MEDIUM On affected platforms running Arista EOS, a specially crafted packet with incorrect VLAN t
CVE-2024-47518 6.4 MEDIUM Specially constructed queries targeting ETM could discover active remote access sessions
CVE-2024-7142 4.6 MEDIUM On Arista CloudVision Appliance (CVA) affected releases running on appliances that support
CVE-2024-7095 4.3 MEDIUM On affected platforms running Arista EOS with SNMP configured, if “snmp-server transmit ma

IV. Related Vulnerabilities

Same vendor: Arista Networks

V. Comments for CVE-2024-6437

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