CAPEC-621: Analysis of Packet Timing and Sizes
CAPEC版本: 3.9
更新日期: 2023-01-24
攻击模式描述
An attacker may intercept and log encrypted transmissions for the purpose of analyzing metadata such as packet timing and sizes. Although the actual data may be encrypted, this metadata may reveal valuable information to an attacker. Note that this attack is applicable to VOIP data as well as application data, especially for interactive apps that require precise timing and low-latency (e.g. thin-clients).
前提条件
- Use of untrusted communication paths enables an attacker to intercept and log communications, including metadata such as packet timing and sizes.
所需技能
后果影响
影响范围: Confidentiality
技术影响: Read Data
说明: Derive sensitive information about encrypted data.
缓解措施
Distort packet sizes and timing at VPN layer by adding padding to normalize packet sizes and timing delays to reduce information leakage via timing.