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CVE-2024-20319

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 UDP 转发代码中存在安全漏洞，可能允许未经身份验证的相邻攻击者绕过管理平面保护策略并访问受影响设备的 SNMP服务器。

CVSS 4.3 · Medium EPSS 0.25% · P15
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I. Basic Information for CVE-2024-20319

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the UDP forwarding code of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to bypass configured management plane protection policies and access the Simple Network Management Plane (SNMP) server of an affected device. This vulnerability is due to incorrect UDP forwarding programming when using SNMP with management plane protection. An attacker could exploit this vulnerability by attempting to perform an SNMP operation using broadcast as the destination address that could be processed by an affected device that is configured with an SNMP server. A successful exploit could allow the attacker to communicate to the device on the configured SNMP ports. Although an unauthenticated attacker could send UDP datagrams to the configured SNMP port, only an authenticated user can retrieve or modify data using SNMP requests.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/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 UDP 转发代码中存在安全漏洞，可能允许未经身份验证的相邻攻击者绕过管理平面保护策略并访问受影响设备的 SNMP服务器。
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 5.2.0 -

II. Public POCs for CVE-2024-20319

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III. Intelligence Information for CVE-2024-20319

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Vendor Advisories for CVE-2024-20319 (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-2024-20322 5.8 MEDIUM Cisco IOS XR 安全漏洞
CVE-2024-20266 5.3 MEDIUM Cisco IOS XR Software 安全漏洞

IV. Related Vulnerabilities

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

V. Comments for CVE-2024-20319

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