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CVE-2024-20322

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 MPLS 和 Pseudowire (PW) 接口上的入口方向 IP 访问控制列表 (ACL) 中存在安全漏洞，可能允许未经身份验证的远程攻击者绕过已配置的 ACL，以下产品和版本受到影响：8000 Series Routers、IOS XR White box (IOSXRWBD)、Network Convergence Series (NCS) 540 Serie

CVSS 5.8 · Medium EPSS 0.49% · P40
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I. Basic Information for CVE-2024-20322

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the access control list (ACL) processing on Pseudowire interfaces in the ingress direction of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to improper assignment of lookup keys to internal interface contexts. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to access resources behind the affected device that were supposed to be protected by a configured ACL.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/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 MPLS 和 Pseudowire (PW) 接口上的入口方向 IP 访问控制列表 (ACL) 中存在安全漏洞，可能允许未经身份验证的远程攻击者绕过已配置的 ACL，以下产品和版本受到影响：8000 Series Routers、IOS XR White box (IOSXRWBD)、Network Convergence Series (NCS) 540 Serie
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 7.10.2 -

II. Public POCs for CVE-2024-20322

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III. Intelligence Information for CVE-2024-20322

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Vendor Advisories for CVE-2024-20322 (1)

Same Patch Batch · Cisco · 2024-03-13 · 8 CVEs total

CVE-2024-20320 7.8 HIGH Cisco IOS XR 安全漏洞
CVE-2024-20318 7.4 HIGH Cisco IOS XR 安全漏洞
CVE-2024-20327 7.4 HIGH Cisco ASR 9000 安全漏洞
CVE-2024-20262 6.5 MEDIUM Cisco IOS XR 安全漏洞
CVE-2024-20315 5.8 MEDIUM Cisco IOS XR 安全漏洞
CVE-2024-20266 5.3 MEDIUM Cisco IOS XR Software 安全漏洞
CVE-2024-20319 4.3 MEDIUM Cisco IOS XR 安全漏洞

IV. Related Vulnerabilities

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

V. Comments for CVE-2024-20322

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