CVE-2020-3521— Cisco Data Center Network Manager Read File Path Traversal Vulnerability
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I. Basic Information for CVE-2020-3521
Vulnerability Information
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Vulnerability Title
Cisco Data Center Network Manager Read File Path Traversal Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in a specific REST API of Cisco Data Center Network Manager (DCNM) Software could allow an authenticated, remote attacker to conduct directory traversal attacks on an affected device. The vulnerability is due to insufficient validation of user-supplied input to the API. An attacker with a low-privileged account could exploit this vulnerability by sending a crafted request to the API. A successful exploit could allow the attacker to read arbitrary files on the affected system.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco Data Center Network Manager 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Data Center Network Manager（DCNM）是美国思科（Cisco）公司的一套数据中心管理系统。该系统适用于Cisco Nexus和MDS系列交换机，提供存储可视化、配置和故障排除等功能。 Cisco Data Center Network Manager (DCNM) 11.4(1)之前版本中的REST API存在输入验证错误漏洞，该漏洞源于程序没有充分验证用户发往API的输入。远程攻击者可通过发送特制的请求利用该漏洞读取系统上的文件。
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
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco Data Center Network Manager | n/a | - |
II. Public POCs for CVE-2020-3521
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dcnm-file-path-6PKONjHevendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2020-3521
Same Patch Batch · Cisco · 2020-08-26 · 22 CVEs total
| CVE-2020-3507 | 8.8 HIGH | Cisco Video Surveillance 8000 Series IP Cameras Cisco Discovery Protocol Remote Code Execu |
| CVE-2020-3443 | 8.8 HIGH | Cisco Smart Software Manager On-Prem Privilege Escalation Vulnerability |
| CVE-2020-3506 | 8.8 HIGH | Cisco Video Surveillance 8000 Series IP Cameras Cisco Discovery Protocol Remote Code Execu |
| CVE-2020-3523 | 6.5 MEDIUM | Cisco Data Center Network Manager Cross-Site Scripting Vulnerability |
| CVE-2020-3518 | 6.5 MEDIUM | Cisco Data Center Network Manager Cross-Site Scripting Vulnerability |
| CVE-2020-3505 | 6.5 MEDIUM | Cisco Video Surveillance 8000 Series IP Cameras Cisco Discovery Protocol Memory Leak Vulne |
| CVE-2020-3485 | 6.3 MEDIUM | Cisco Vision Dynamic Signage Director Role-Based Access Control Vulnerability |
| CVE-2020-3522 | 6.3 MEDIUM | Cisco Data Center Network Manager Authorization Bypass Vulnerability |
| CVE-2020-3491 | 5.5 MEDIUM | Cisco Vision Dynamic Signage Director Stored Cross-Site Scripting Vulnerability |
| CVE-2020-3520 | 5.5 MEDIUM | Cisco Data Center Network Manager Information Disclosure Vulnerability |
| CVE-2020-3484 | 5.3 MEDIUM | Cisco Vision Dynamic Signage Director Directory Traversal Information Disclosure Vulnerabi |
| CVE-2020-3490 | 4.9 MEDIUM | Cisco Vision Dynamic Signage Director Path Traversal Vulnerability |
| CVE-2020-3151 | Cisco Connected Mobile Experiences Restricted Shell Escape Vulnerability | |
| CVE-2020-3496 | Cisco Small Business Smart and Managed Switches Denial of Service Vulnerability | |
| CVE-2020-3466 | Cisco DNA Center Cross-Site Scripting Vulnerabilities | |
| CVE-2020-3446 | Cisco vWAAS for Cisco ENCS 5400-W Series and CSP 5000-W Series Default Credentials Vulnera | |
| CVE-2020-3440 | Cisco Webex Meetings Desktop App for Windows Arbitrary File Overwrite Vulnerability | |
| CVE-2020-3439 | Cisco Data Center Network Manager Stored Cross-Site Scripting Vulnerability | |
| CVE-2020-3519 | Cisco Data Center Network Manager Path Traversal Vulnerability | |
| CVE-2020-3389 | Cisco Hyperflex HX-Series Software Weak Storage Vulnerability |
Showing top 20 of 22 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Cisco Data Center Network Manager
- CVE-2025-20347
Cisco Nexus Dashboard Fabric Controller Unauthorized REST AP - CVE-2025-20163
Cisco Nexus Dashboard Fabric Controller SSH Host Key Vulnera - CVE-2020-3538
Cisco Data Center Network Manager Path Traversal Vulnerabil - CVE-2020-3539
Cisco Data Center Network Manager Authorization Bypass Vulne - CVE-2024-20536
Cisco Nexus Dashboard Fabric Controller SQL Injection Vulner
Same vendor: Cisco
- CVE-2026-20219
Cisco Slido 安全漏洞 - CVE-2026-20034
Cisco Unity Connection Remote Code Execution Vulnerability - CVE-2026-20035
Cisco Unity Connection Server-Side Request Forgery Vulnerabi - CVE-2026-20167
Cisco IoT Field Network Director Remote Device Denial of Ser - CVE-2026-20169
Cisco IoT Field Network Director Command Injection Vulnerabi
Same weakness: CWE-20
V. Comments for CVE-2020-3521
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