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CVE-2019-1957— Cisco IoT Field Network Director TLS Renegotiation Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco IoT Field Network Director (IoT-FND)
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 IoT Field Network Director（IoT-FND）是美国思科（Cisco）公司的一套端到端的物联网管理系统。该系统具有设备管理、资产跟踪和智能计量等功能。 Cisco IoT-FND 4.4.2-11之前版本中的Web管理界面存在资源管理错误漏洞。该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。远程攻击者可利用该漏洞导致拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 1.97% · P80
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I. Basic Information for CVE-2019-1957

Vulnerability Information
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Vulnerability Title
Cisco IoT Field Network Director TLS Renegotiation Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the web interface of Cisco IoT Field Network Director could allow an unauthenticated, remote attacker to trigger high CPU usage, resulting in a denial of service (DoS) condition on an affected device. The vulnerability is due to improper handling of Transport Layer Security (TLS) renegotiation requests. An attacker could exploit this vulnerability by sending renegotiation requests at a high rate. A successful exploit could increase the resource usage on the system, eventually leading to a DoS condition.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
资源管理错误
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco IoT Field Network Director 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IoT Field Network Director（IoT-FND）是美国思科（Cisco）公司的一套端到端的物联网管理系统。该系统具有设备管理、资产跟踪和智能计量等功能。 Cisco IoT-FND 4.4.2-11之前版本中的Web管理界面存在资源管理错误漏洞。该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。远程攻击者可利用该漏洞导致拒绝服务。
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 IoT Field Network Director (IoT-FND) unspecified ~ n/a -

II. Public POCs for CVE-2019-1957

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III. Intelligence Information for CVE-2019-1957

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Vendor Advisories for CVE-2019-1957 (1)

Same Patch Batch · Cisco · 2019-08-08 · 17 CVEs total

CVE-2019-1973 Cisco Enterprise NFV Infrastructure Software Cross-site Scripting Vulnerability
CVE-2019-1959 Cisco Enterprise NFV Infrastructure Software Arbitrary File Read Vulnerabilities
CVE-2019-1960 Cisco Enterprise NFV Infrastructure Software Arbitrary File Read Vulnerabilities
CVE-2019-1961 Cisco Enterprise NFV Infrastructure Software Web Portal Arbitrary File Read Vulnerability
CVE-2019-1970 Cisco Firepower Threat Defense Software File Policy Bypass Vulnerability
CVE-2019-1971 Cisco Enterprise NFV Infrastructure Software Command Injection Vulnerability
CVE-2019-1972 Cisco Enterprise NFV Infrastructure Software Privilege Escalation Vulnerability
CVE-2019-1953 Cisco Enterprise NFV Infrastructure Software Password Recovery Vulnerability
CVE-2019-1954 Cisco Webex Meetings Server Open Redirection Vulnerability
CVE-2019-1955 Cisco Email Security Appliance Header Injection Vulnerability
CVE-2019-1956 Cisco SPA112 2-Port Phone Adapter Stored Cross-Site Scripting Vulnerability
CVE-2019-1958 Cisco HyperFlex Software Cross-Site Request Forgery Vulnerability
CVE-2019-1949 Cisco Firepower Management Center Persistent Cross-Site Scripting Vulnerability
CVE-2019-1951 Cisco SD-WAN Solution Packet Filtering Bypass Vulnerability
CVE-2019-1952 Cisco Enterprise NFV Infrastructure Software Path Traversal Vulnerability
CVE-2019-1946 Cisco Enterprise NFV Infrastructure Software Web-Based Management Interface Authentication

IV. Related Vulnerabilities

Same product: Cisco IoT Field Network Director (IoT-FND)
Same vendor: Cisco
Same weakness: CWE-399