CWE-393 상세 정보

CWE-393

Return of Wrong Status Code
2006-07-19
00h00 +00:00
Draft
2026-10-28
00h00 +00:00
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알림 관리

이름: Return of Wrong Status Code

A function or operation returns an incorrect return value or status code that does not indicate the true result of execution, causing the product to modify its behavior based on the incorrect result.

일반 정보

취약점 도입 방식

Implementation

적용 가능한 플랫폼

언어

클래스: Not Language-Specific (Undetermined)

일반적인 결과

범위 영향 가능성
Integrity
Other
Unexpected State, Alter Execution Logic

참고: This weakness can lead to unpredictable behavior. If the function is used to make security-critical decisions or provide security-critical information, then the wrong status code can cause the product to assume that an action is safe or correct, even when it is not. This weakness could place the system in a state that could lead unexpected logic to be executed or other unintended behaviors.

관찰된 예시

참고 자료 설명

CVE-2003-1132

DNS server returns wrong response code for non-existent AAAA record, which effectively says that the domain is inaccessible.

CVE-2001-1509

Hardware-specific implementation of system call causes incorrect results from geteuid.

CVE-2001-1559

Chain: System call returns wrong value (CWE-393), leading to a resultant NULL dereference (CWE-476).

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.

탐지 방법

Fuzzing

Fuzz testing (fuzzing) is a powerful technique for generating large numbers of diverse inputs - either randomly or algorithmically - and dynamically invoking the code with those inputs. Even with random inputs, it is often capable of generating unexpected results such as crashes, memory corruption, or resource consumption. Fuzzing effectively produces repeatable test cases that clearly indicate bugs, which helps developers to diagnose the issues.
효과성 : High

취약점 매핑 메모

근거 : 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.
댓글 : 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.

메모

This can be primary or resultant, but it is probably most often primary to other issues.

제출

이름 조직 날짜 출시일 Version
PLOVER 2006-07-19 +00:00 2006-07-19 +00:00 Draft 3

수정 사항

이름 조직 날짜 댓글
Sean Eidemiller Cigital 2008-07-01 +00:00 added/updated demonstrative examples
Eric Dalci Cigital 2008-07-01 +00:00 updated Time_of_Introduction
CWE Content Team MITRE 2008-09-08 +00:00 updated Maintenance_Notes, Relationships, Other_Notes, Taxonomy_Mappings
CWE Content Team MITRE 2008-10-14 +00:00 updated Description
CWE Content Team MITRE 2009-03-10 +00:00 updated Relationships
CWE Content Team MITRE 2010-02-16 +00:00 updated Other_Notes, Relationship_Notes
CWE Content Team MITRE 2011-06-01 +00:00 updated Common_Consequences
CWE Content Team MITRE 2011-06-27 +00:00 updated Common_Consequences
CWE Content Team MITRE 2012-05-11 +00:00 updated Common_Consequences, Relationships
CWE Content Team MITRE 2014-06-23 +00:00 updated Observed_Examples
CWE Content Team MITRE 2014-07-30 +00:00 updated Relationships, Taxonomy_Mappings
CWE Content Team MITRE 2017-11-08 +00:00 updated Applicable_Platforms
CWE Content Team MITRE 2020-02-24 +00:00 updated Observed_Examples
CWE Content Team MITRE 2021-03-15 +00:00 updated Maintenance_Notes
CWE Content Team MITRE 2021-07-20 +00:00 updated Observed_Examples
CWE Content Team MITRE 2023-01-31 +00:00 updated Description
CWE Content Team MITRE 2023-04-27 +00:00 updated Detection_Factors, Relationships, Time_of_Introduction
CWE Content Team MITRE 2023-06-29 +00:00 updated Mapping_Notes
CWE Content Team MITRE 2023-10-26 +00:00 updated Demonstrative_Examples, Observed_Examples
CWE Content Team MITRE 2025-04-03 +00:00 updated Description
CWE Content Team MITRE 2025-12-11 +00:00 updated Observed_Examples, Weakness_Ordinalities
CWE Content Team MITRE 2026-10-28 +00:00 updated Common_Consequences, Description