CWE-1037 处理器优化致使安全关键代码被删除或修改

admin 2022年1月7日02:22:27CWE(弱点枚举)评论11 views2059字阅读6分51秒阅读模式

CWE-1037 处理器优化致使安全关键代码被删除或修改

Processor Optimization Removal or Modification of Security-critical Code

结构: Simple

Abstraction: Base

状态: Incomplete

被利用可能性: Low

基本描述

The developer builds a security-critical protection mechanism into the software, but the processor optimizes the execution of the program such that the mechanism is removed or modified.

相关缺陷

  • cwe_Nature: ChildOf cwe_CWE_ID: 1038 cwe_View_ID: 699 cwe_Ordinal: Primary

  • cwe_Nature: ChildOf cwe_CWE_ID: 1038 cwe_View_ID: 1000 cwe_Ordinal: Primary

适用平台

Language: {'cwe_Class': 'Language-Independent', 'cwe_Prevalence': 'Rarely'}

常见的影响

范围 影响 注释
Integrity Bypass Protection Mechanism A successful exploitation of this weakness will change the order of an application's execution and will likely be used to bypass specific protection mechanisms. This bypass can be exploited further to potentially read data that should otherwise be unaccessible.

检测方法

White Box

In theory this weakness can be detected through the use of white box testing techniques where specifically crafted test cases are used in conjunction with debuggers to verify the order of statements being executed.

Although the mentioned detection method is theoretically possible, the use of speculative execution is a preferred way of increasing processor performance. The reality is that a large number of statements are executed out of order, and determining if any of them break an access control property would be extremely opportunistic.

分析过的案例

标识 说明 链接
CVE-2017-5715 Intel, ARM, and AMD processor optimizations related to speculative execution and branch prediction cause access control checks to be bypassed when placing data into the cache. Often known as "Spectre". https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5715
CVE-2017-5753 Intel, ARM, and AMD processor optimizations related to speculative execution and branch prediction cause access control checks to be bypassed when placing data into the cache. Often known as "Spectre". https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5753
CVE-2017-5754 Intel processor optimizations related to speculative execution cause access control checks to be bypassed when placing data into the cache. Often known as "Meltdown". https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5754

引用

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  • 本文由 发表于 2022年1月7日02:22:27
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