CWE-561
Dead Code
2006-07-19
00h00 +00:00
00h00 +00:00
Thông báo cho một CWE
Luôn được thông báo về mọi thay đổi đối với một CWE cụ thể.
Tên: Dead Code
The product contains dead code, which can never be executed.
Thông tin chung
Các cách xuất hiện
ImplementationNền tảng áp dụng
Ngôn ngữ
Lớp: Not Language-Specific (Undetermined)Hậu quả phổ biến
| Phạm vi | Tác động | Khả năng xảy ra |
|---|---|---|
| Other | Quality Degradation Ghi chú: Dead code that results from code that can never be executed is an indication of problems with the source code that needs to be fixed and is an indication of poor quality. | |
| Other | Reduce Maintainability | |
| Other | Varies by Context, Execute Unauthorized Code or Commands Ghi chú: In some cases, dead code can be reachable or exploitable by attackers after they exploit another weakness or vulnerability that can access the code. For example, some buffer overflow exploits could modify addresses to point to locations that contain dead code. |
Ví dụ đã quan sát
| Tài liệu tham khảo | Mô tả |
|---|---|
CVE-2014-1266 | Chain: incorrect "goto" in Apple SSL product bypasses certificate validation, allowing Adversary-in-the-Middle (AITM) attack (Apple "goto fail" bug). CWE-705 (Incorrect Control Flow Scoping) -> CWE-561 (Dead Code) -> CWE-295 (Improper Certificate Validation) -> CWE-393 (Return of Wrong Status Code) -> CWE-300 (Channel Accessible by Non-Endpoint). The code's whitespace indentation did not reflect the actual control flow (CWE-1114) and did not explicitly delimit the block (CWE-483), which could have made it more difficult for human code auditors to detect the vulnerability. |
Các biện pháp giảm thiểu tiềm năng
Phases : ImplementationRemove dead code before deploying the application.
Phương pháp phát hiện
Architecture or Design Review
Hiệu quả : HighAutomated Static Analysis - Binary or Bytecode
Hiệu quả : HighDynamic Analysis with Manual Results Interpretation
Hiệu quả : SOAR PartialAutomated Static Analysis
Hiệu quả : SOAR PartialAutomated Static Analysis - Source Code
Hiệu quả : HighDynamic Analysis with Automated Results Interpretation
Hiệu quả : SOAR PartialManual Static Analysis - Source Code
Hiệu quả : HighGhi chú ánh xạ lỗ hổng
Lý do : This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities. However, the term "dead code" might have multiple interpretations.Bình luận : Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.
Ghi chú
Tài liệu tham khảo
REF-960
Automated Source Code Maintainability Measure (ASCMM)Object Management Group (OMG).
https://www.omg.org/spec/ASCMM/
REF-1479
State-of-the-Art Resources (SOAR) for Software Vulnerability Detection, Test, and EvaluationGregory Larsen, E. Kenneth Hong Fong, David A. Wheeler, Rama S. Moorthy.
https://www.ida.org/-/media/feature/publications/s/st/stateoftheart-resources-soar-for-software-vulnerability-detection-test-and-evaluation/p-5061.ashx
REF-1534
Automated Technical Debt Measure, Version 2OMG.
https://www.omg.org/spec/ATDM2/1.0/PDF
Gửi
| Tên | Tổ chức | Ngày | Ngày phát hành | Version |
|---|---|---|---|---|
| Anonymous Tool Vendor (under NDA) | Draft 3 |
Sửa đổi
| Tên | Tổ chức | Ngày | Bình luận |
|---|---|---|---|
| Eric Dalci | Cigital | updated Potential_Mitigations, Time_of_Introduction | |
| CWE Content Team | MITRE | updated Description, Relationships, Other_Notes, Taxonomy_Mappings | |
| CWE Content Team | MITRE | updated Relationships, Taxonomy_Mappings | |
| CWE Content Team | MITRE | updated Demonstrative_Examples | |
| CWE Content Team | MITRE | updated Demonstrative_Examples | |
| CWE Content Team | MITRE | updated Common_Consequences, Other_Notes | |
| CWE Content Team | MITRE | updated Common_Consequences | |
| CWE Content Team | MITRE | updated Relationships, Taxonomy_Mappings | |
| CWE Content Team | MITRE | updated Common_Consequences, Relationships | |
| CWE Content Team | MITRE | updated Potential_Mitigations | |
| CWE Content Team | MITRE | updated Observed_Examples | |
| CWE Content Team | MITRE | updated Detection_Factors, Taxonomy_Mappings | |
| CWE Content Team | MITRE | updated Relationships, Taxonomy_Mappings | |
| CWE Content Team | MITRE | updated Common_Consequences, References, Relationships, Taxonomy_Mappings, Weakness_Ordinalities | |
| CWE Content Team | MITRE | updated Type | |
| CWE Content Team | MITRE | updated Applicable_Platforms, Observed_Examples, Relationships | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Observed_Examples | |
| CWE Content Team | MITRE | updated Description | |
| CWE Content Team | MITRE | updated References, Relationships | |
| CWE Content Team | MITRE | updated Mapping_Notes | |
| CWE Content Team | MITRE | updated Demonstrative_Examples | |
| CWE Content Team | MITRE | updated Detection_Factors, References | |
| CWE Content Team | MITRE | updated Observed_Examples | |
| CWE Content Team | MITRE | updated Potential_Mitigations | |
| CWE Content Team | MITRE | updated Common_Consequences, Description, Mapping_Notes, References, Relationships, Technical_Nuance, Terminology_Notes |
