CVE-2024-20343— Cisco IOS XR Software CLI Arbitrary File Read Vulnerability
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I. Basic Information for CVE-2024-20343
Vulnerability Information
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Vulnerability Title
Cisco IOS XR Software CLI Arbitrary File Read Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to read any file in the file system of the underlying Linux operating system. The attacker must have valid credentials on the affected device. This vulnerability is due to incorrect validation of the arguments that are passed to a specific CLI command. An attacker could exploit this vulnerability by logging in to an affected device with low-privileged credentials and using the affected command. A successful exploit could allow the attacker access files in read-only mode on the Linux file system.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
访问控制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IOS XR 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XR是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS XR 存在安全漏洞，该漏洞源于对传递给特定 CLI 命令的参数验证不正确。
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 IOS XR Software | 6.5.3 | - |
II. Public POCs for CVE-2024-20343
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Cisco · 2024-09-11 · 9 CVEs total
| CVE-2024-20381 | 8.8 HIGH | Cisco Network Services Orchestrator Configuration Update Authorization Bypass Vulnerabilit |
| CVE-2024-20398 | 8.8 HIGH | Cisco IOS XR Software Local Privilege Escalation Vulnerability |
| CVE-2024-20304 | 8.6 HIGH | Cisco IOS XR Software Packet Memory Exhaustion Vulnerability |
| CVE-2024-20489 | 8.4 HIGH | Cisco Routed Passive Optical Network Cleartext Password Vulnerability |
| CVE-2024-20406 | 7.4 HIGH | Cisco IOS XR Software Intermediate System-to-Intermediate System Denial of Service Vulnera |
| CVE-2024-20317 | 7.4 HIGH | Cisco IOS XR Software Layer 2 Services Denial of Service Vulnerability |
| CVE-2024-20483 | 7.2 HIGH | Cisco IOS XR PON Controller Command Injection Vulnerabilities |
| CVE-2024-20390 | 5.3 MEDIUM | Cisco IOS XR Software Dedicated XML Agent TCP Denial of Service Vulnerability |
IV. Related Vulnerabilities
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Cisco IOS XR Software CLI Privilege Escalation Vulnerability - CVE-2026-20074
Cisco IOS XR Software Multi-Instance Intermediate System-to- - CVE-2026-20040
Cisco IOS XR Software CLI Privilege Escalation Vulnerability - CVE-2025-20340
Cisco IOS XR Address Resolution Protocol Broadcast Storm Vul
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V. Comments for CVE-2024-20343
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