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CVE-2024-20343— Cisco IOS XR Software CLI Arbitrary File Read Vulnerability

Quick assessment

Affected
Cisco Cisco IOS XR 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 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。

CVSS 5.5 · Medium EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
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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: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
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

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III. Intelligence Information for CVE-2024-20343

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Vendor Advisories for CVE-2024-20343 (1)

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

Same product: Cisco IOS XR Software
Same vendor: Cisco
Same weakness: CWE-284

V. Comments for CVE-2024-20343

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