CVE-2019-1814— Cisco Small Business 300 Series Managed Switches DHCP Denial of Service Vulnerability
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I. Basic Information for CVE-2019-1814
Vulnerability Information
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Vulnerability Title
Cisco Small Business 300 Series Managed Switches DHCP Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the interactions between the DHCP and TFTP features for Cisco Small Business 300 Series (Sx300) Managed Switches could allow an unauthenticated, remote attacker to cause the device to become low on system memory, which in turn could lead to an unexpected reload of the device and result in a denial of service (DoS) condition on an affected device. The vulnerability is due to a failure to free system memory when an unexpected DHCP request is received. An attacker could exploit this vulnerability by sending a crafted DHCP packet to the targeted device. A successful exploit could allow the attacker to cause an unexpected reload of the device.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco Small Business 300 Series 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Small Business 300 Series是美国思科（Cisco）公司的一款企业级管理型交换机。 Cisco Small Business 300 Series中DHCP和TFTP功能之间的交互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。
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 | 1.4.0.88 | - |
II. Public POCs for CVE-2019-1814
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-sb300sms-dhcpvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2019-1814
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-2019-1812 | 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 Small Business 300 Series Managed Switches
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Cisco Small Business Series Switches Memory Corruption Vulne - CVE-2018-15439
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V. Comments for CVE-2019-1814
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