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CVE-2021-34709— Cisco IOS XR Software for Cisco 8000 and Network Convergence System 540 Series Routers Image Verification Vulnerabilities

CVSS 6.0 · Medium EPSS 0.02% · P7
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I. Basic Information for CVE-2021-34709

Vulnerability Information
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Vulnerability Title
Cisco IOS XR Software for Cisco 8000 and Network Convergence System 540 Series Routers Image Verification Vulnerabilities
Source: NVD (National Vulnerability Database)
Vulnerability Description
Multiple vulnerabilities in image verification checks of Cisco Network Convergence System (NCS) 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for Cisco 8000 Series Routers could allow an authenticated, local attacker to execute arbitrary code on the underlying operating system. For more information about these vulnerabilities, see the Details section of this advisory.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
密码学签名的验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IOS XR 数据伪造问题漏洞
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 Software 存在数据伪造问题漏洞，该漏洞允许经过身份验证的远程攻击者覆盖和读取任意本地设备上的文件。
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

VendorProductAffected VersionsCPESubscribe
CiscoCisco IOS XR Software n/a -

II. Public POCs for CVE-2021-34709

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III. Intelligence Information for CVE-2021-34709

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Same Patch Batch · Cisco · 2021-09-09 · 13 CVEs total

CVE-2021-347208.6 HIGHCisco IOS XR Software IP Service Level Agreements and Two-Way Active Measurement Protocol
CVE-2021-347188.1 HIGHCisco IOS XR Software Arbitrary File Read and Write Vulnerability
CVE-2021-347287.8 HIGHCisco IOS XR Software Authenticated User Privilege Escalation Vulnerabilities
CVE-2021-347197.8 HIGHCisco IOS XR Software Authenticated User Privilege Escalation Vulnerabilities
CVE-2021-347137.4 HIGHCisco IOS XR Software for ASR 9000 Series Routers Denial of Service Vulnerability
CVE-2021-347226.7 MEDIUMCisco IOS XR Software Command Injection Vulnerabilities
CVE-2021-347216.7 MEDIUMCisco IOS XR Software Command Injection Vulnerabilities
CVE-2021-347866.5 MEDIUMCisco BroadWorks CommPilot Application Software Vulnerabilities
CVE-2021-347856.5 MEDIUMCisco BroadWorks CommPilot Application Software Vulnerabilities
CVE-2021-347086.0 MEDIUMCisco IOS XR Software for Cisco 8000 and Network Convergence System 540 Series Routers Ima
CVE-2021-347375.8 MEDIUMCisco IOS XR Software DHCP Version 4 Server Denial of Service Vulnerability
CVE-2021-347715.5 MEDIUMCisco IOS XR Software Unauthorized Information Disclosure Vulnerability

IV. Related Vulnerabilities

Same product: Cisco IOS XR Software
Same vendor: Cisco
Same weakness: CWE-347

V. Comments for CVE-2021-34709

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