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CVE-2019-1806— Cisco Small Business Series Switches Simple Network Management Protocol Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco 550X Series Stackable Managed Switches
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 Small Business Sx200等都是美国思科（Cisco）公司的产品。Cisco Small Business Sx200是一款Sx200系列管理型交换机。Cisco Small Business Sx300是一款Sx300系列管理型交换机。Cisco Small Business Sx250是一款Sx250系列企业级交换机。 多款Cisco产品中的Simple Network Management Protocol (SNMP)输入数据包处理器存在输入验证错误漏洞，该漏洞源于程序没

AI Predicted 5.4 Difficulty: Easy EPSS 2.05% · P80

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2019-1806

Vulnerability Information
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Vulnerability Title
Cisco Small Business Series Switches Simple Network Management Protocol Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco Small Business Sx200, Sx300, Sx500, ESW2 Series Managed Switches and Small Business Sx250, Sx350, Sx550 Series Switches could allow an authenticated, remote attacker to cause the SNMP application of an affected device to cease processing traffic, resulting in the CPU utilization reaching one hundred percent. Manual intervention may be required before a device resumes normal operations. The vulnerability is due to improper validation of SNMP protocol data units (PDUs) in SNMP packets. An attacker could exploit this vulnerability by sending a malicious SNMP packet to an affected device. A successful exploit could allow the attacker to cause the device to cease forwarding traffic, which could result in a denial of service (DoS) condition. Cisco has released firmware updates that address this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
多款Cisco产品输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Small Business Sx200等都是美国思科（Cisco）公司的产品。Cisco Small Business Sx200是一款Sx200系列管理型交换机。Cisco Small Business Sx300是一款Sx300系列管理型交换机。Cisco Small Business Sx250是一款Sx250系列企业级交换机。 多款Cisco产品中的Simple Network Management Protocol (SNMP)输入数据包处理器存在输入验证错误漏洞，该漏洞源于程序没
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 550X Series Stackable Managed Switches unspecified ~ 1.4.10.6 -

II. Public POCs for CVE-2019-1806

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III. Intelligence Information for CVE-2019-1806

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Vendor Advisories for CVE-2019-1806 (2)

Same Patch Batch · Cisco · 2019-05-15 · 36 CVEs total

CVE-2019-1730 Cisco NX-OS Software Bash Bypass Guest Shell Vulnerability
CVE-2019-1776 Cisco NX-OS Software Command Injection Vulnerability
CVE-2019-1772 Cisco Webex Network Recording Player Arbitrary Code Execution Vulnerability
CVE-2019-1773 Cisco Webex Network Recording Player Arbitrary Code Execution Vulnerabilities
CVE-2019-1769 Cisco NX-OS Software Line Card Command Injection Vulnerability
CVE-2019-1770 Cisco NX-OS Software Command Injection Vulnerability
CVE-2019-1771 Cisco Webex Network Recording Player Arbitrary Code Execution Vulnerability
CVE-2019-1735 Cisco NX-OS Software Command Injection Vulnerability (CVE-2019-1735)
CVE-2019-1767 Cisco NX-OS Software Buffer Overflow and Command Injection Vulnerability
CVE-2019-1775 Cisco NX-OS Software Command Injection Vulnerability
CVE-2019-1731 Cisco NX-OS Software SSH Key Information Disclosure Vulnerability
CVE-2019-1732 Cisco NX-OS Software Remote Package Manager Command Injection Vulnerability
CVE-2019-1733 Cisco NX-OS Software NX-API Sandbox Cross-Site Scripting Vulnerability
CVE-2019-1727 Cisco NX-OS Software Python Parser Privilege Escalation Vulnerability
CVE-2019-1728 Cisco FXOS and NX-OS Software Secure Configuration Bypass Vulnerability
CVE-2019-1729 Cisco NX-OS Software Arbitrary File Overwrite Vulnerability
CVE-2019-1726 Cisco NX-OS Software CLI Bypass to Internal Service Vulnerability
CVE-2019-1717 Cisco Video Surveillance Manager Web-Based Management Interface Information Disclosure Vul
CVE-2019-1783 Cisco NX-OS Software Command Injection Vulnerability
CVE-2019-1811 Cisco NX-OS CLI Command Software Image Signature Verification Vulnerabilities

Showing top 20 of 36 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco 550X Series Stackable Managed Switches
Same vendor: Cisco
Same weakness: CWE-20

V. Comments for CVE-2019-1806

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