CWE-406: Insufficient Control of Network Message Volume (Network Amplification)
CWE版本: 4.18
更新日期: 2025-09-09
弱点描述
The product does not sufficiently monitor or control transmitted network traffic volume, so that an actor can cause the product to transmit more traffic than should be allowed for that actor.
扩展描述
In the absence of a policy to restrict asymmetric resource consumption, the application or system cannot distinguish between legitimate transmissions and traffic intended to serve as an amplifying attack on target systems. Systems can often be configured to restrict the amount of traffic sent out on behalf of a client, based on the client's origin or access level. This is usually defined in a resource allocation policy. In the absence of a mechanism to keep track of transmissions, the system or application can be easily abused to transmit asymmetrically greater traffic than the request or client should be permitted to.
常见后果
影响范围: Availability
技术影响: DoS: Amplification DoS: Crash, Exit, or Restart DoS: Resource Consumption (CPU) DoS: Resource Consumption (Memory) DoS: Resource Consumption (Other)
说明: System resources can be quickly consumed leading to poor application performance or system crash. This may affect network performance and could be used to attack other systems and applications relying on network performance.
潜在缓解措施
阶段: Architecture and Design
策略: Separation of Privilege
描述: An application must make network resources available to a client commensurate with the client's access level.
阶段: Policy
描述: Define a clear policy for network resource allocation and consumption.
阶段: Implementation
描述: An application must, at all times, keep track of network resources and meter their usage appropriately.
观察示例
参考: CVE-1999-0513
Classic "Smurf" attack, using spoofed ICMP packets to broadcast addresses.
参考: CVE-1999-1379
DNS query with spoofed source address causes more traffic to be returned to spoofed address than was sent by the attacker.
参考: CVE-2000-0041
Large datagrams are sent in response to malformed datagrams.
参考: CVE-1999-1066
Game server sends a large amount.
参考: CVE-2013-5211
composite: NTP feature generates large responses (high amplification factor) with spoofed UDP source addresses.
引入模式
| 阶段 | 说明 |
|---|---|
| Operation | - |
| Architecture and Design | If the application uses UDP, then it could potentially be subject to spoofing attacks that use the inherent weaknesses of UDP to perform traffic amplification, although this problem can exist in other protocols or contexts. |
| Implementation | - |
适用平台
编程语言
分类映射
| 分类名称 | 条目ID | 条目名称 | 映射适配度 |
|---|---|---|---|
| PLOVER | - | Network Amplification | - |