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CVE-2019-1943— Cisco Small Business Series Switches Open Redirect Vulnerability

Quick assessment

Affected
Cisco Cisco Small Business 300 Series Managed Switches
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco Small Business 200 Series Managed Switches等都是美国思科（Cisco）公司的产品。Cisco Small Business 200 Series Managed Switches是一款200系列管理型交换机。Cisco Small Business 300 Series Managed Switches是一款300系列管理型交换机。Cisco Small Business 500 Series Managed Switches是一款500系列管理型交换

AI Predicted 6.1 Difficulty: Trivial EPSS 9.69% · P95

Public Exploits 2

ExploitDB · 1 EDB-47118 [webapps]
Nuclei · 1 CVE-2019-1943.yaml [template]

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2019-1943

Vulnerability Information
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Vulnerability Title
Cisco Small Business Series Switches Open Redirect Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the web interface of Cisco Small Business 200, 300, and 500 Series Switches software could allow an unauthenticated, remote attacker to redirect a user to a malicious web page. The vulnerability is due to improper input validation of the parameters of an HTTP request. An attacker could exploit this vulnerability by intercepting a user's HTTP request and modifying it into a request that causes the web interface to redirect the user to a specific malicious URL. This type of vulnerability is known as an open redirect attack and is used in phishing attacks that get users to unknowingly visit malicious sites.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Small Business 200、300和500 Switches 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Small Business 200 Series Managed Switches等都是美国思科（Cisco）公司的产品。Cisco Small Business 200 Series Managed Switches是一款200系列管理型交换机。Cisco Small Business 300 Series Managed Switches是一款300系列管理型交换机。Cisco Small Business 500 Series Managed Switches是一款500系列管理型交换
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 Small Business 300 Series Managed Switches 1.3.7.18 -

II. Public POCs for CVE-2019-1943

# POC Description Source Link Shenlong Link
1 Cisco Small Business 200,300 and 500 Series Switches contain an open redirect vulnerability in the Web UI. An attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2019/CVE-2019-1943.yaml POC Details
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III. Intelligence Information for CVE-2019-1943

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Vendor Advisories for CVE-2019-1943 (2)

Same Patch Batch · Cisco · 2019-07-17 · 8 CVEs total

CVE-2019-1917 Cisco Vision Dynamic Signage Director REST API Authentication Bypass Vulnerability
CVE-2019-1920 Cisco IOS Access Points Software 802.11r Fast Transition Denial of Service Vulnerability
CVE-2019-1919 Cisco FindIT Network Management Software Static Credentials Vulnerability
CVE-2019-1942 Cisco Identity Services Engine Blind SQL Injection Vulnerability
CVE-2019-1941 Cisco Identity Services Engine Cross-Site Scripting Vulnerability
CVE-2019-1940 Cisco Industrial Network Director Web Services Management Agent Unauthorized Information D
CVE-2019-1923 Cisco Small Business SPA500 Series IP Phones Local Command Execution Vulnerability

IV. Related Vulnerabilities

Same product: Cisco Small Business 300 Series Managed Switches
Same vendor: Cisco
Same weakness: CWE-601

V. Comments for CVE-2019-1943

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